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Sample records for aircraft airworthiness management

  1. 14 CFR 91.7 - Civil aircraft airworthiness.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... 14 Aeronautics and Space 2 2011-01-01 2011-01-01 false Civil aircraft airworthiness. 91.7 Section... aircraft airworthiness. (a) No person may operate a civil aircraft unless it is in an airworthy condition. (b) The pilot in command of a civil aircraft is responsible for determining whether that aircraft...

  2. 14 CFR 91.7 - Civil aircraft airworthiness.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... 14 Aeronautics and Space 2 2010-01-01 2010-01-01 false Civil aircraft airworthiness. 91.7 Section... aircraft airworthiness. (a) No person may operate a civil aircraft unless it is in an airworthy condition. (b) The pilot in command of a civil aircraft is responsible for determining whether that aircraft...

  3. 14 CFR 91.7 - Civil aircraft airworthiness.

    Code of Federal Regulations, 2012 CFR

    2012-01-01

    ... 14 Aeronautics and Space 2 2012-01-01 2012-01-01 false Civil aircraft airworthiness. 91.7 Section... aircraft airworthiness. (a) No person may operate a civil aircraft unless it is in an airworthy condition. (b) The pilot in command of a civil aircraft is responsible for determining whether that aircraft...

  4. 14 CFR 91.7 - Civil aircraft airworthiness.

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ... 14 Aeronautics and Space 2 2014-01-01 2014-01-01 false Civil aircraft airworthiness. 91.7 Section... aircraft airworthiness. (a) No person may operate a civil aircraft unless it is in an airworthy condition. (b) The pilot in command of a civil aircraft is responsible for determining whether that aircraft...

  5. 14 CFR 91.7 - Civil aircraft airworthiness.

    Code of Federal Regulations, 2013 CFR

    2013-01-01

    ... 14 Aeronautics and Space 2 2013-01-01 2013-01-01 false Civil aircraft airworthiness. 91.7 Section... aircraft airworthiness. (a) No person may operate a civil aircraft unless it is in an airworthy condition. (b) The pilot in command of a civil aircraft is responsible for determining whether that aircraft...

  6. 77 FR 22187 - Technical Amendment; Airworthiness Standards-Aircraft Engines

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-04-13

    .... SUMMARY: This amendment corrects a number of errors in the airworthiness standards for aircraft engine...: AIRCRAFT ENGINES 0 1. The authority citation for part 33 continues to read as follows: Authority: 49 U.S.C... Federal Aviation Administration 14 CFR Part 33 Technical Amendment; Airworthiness...

  7. 77 FR 58301 - Technical Amendment; Airworthiness Standards: Aircraft Engines; Correction

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-09-20

    .... SUMMARY: The FAA is correcting a technical amendment published on July 5, 2012 (77 FR 39623). In that technical amendment, the FAA clarified aircraft engine vibration test requirements in the airworthiness... Technical Amendment entitled, ``Airworthiness Standards: Aircraft Engine'' (77 FR 39623). In that...

  8. 76 FR 69123 - Airworthiness Directives; Cessna Aircraft Company Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-11-08

    ... . SUPPLEMENTARY INFORMATION: Airworthiness Directive 2009-10-09 R2, Amendment 39-16782 (76 FR 53308, August 26...-030-AD; Amendment 39-16782; AD 2009-10-09 R2] RIN 2120-AA64 Airworthiness Directives; Cessna Aircraft.... That AD applies to certain Cessna Aircraft Company (Cessna) Models 150F, 150G, 150H, 150J, 150K,...

  9. 76 FR 75442 - Airworthiness Directives; Quest Aircraft Design, LLC Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-12-02

    ... Order 12866, (2) Is not a ``significant rule'' under DOT Regulatory Policies and Procedures (44 FR 11034...-037-AD; Amendment 39-16880; AD 2011-25-04] RIN 2120-AA64 Airworthiness Directives; Quest Aircraft... comments. ] SUMMARY: We are adopting a new airworthiness directive (AD) for certain Quest Aircraft...

  10. 78 FR 25363 - Airworthiness Directives; Diamond Aircraft Industries Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-05-01

    ...'' under the DOT Regulatory Policies and Procedures (44 FR 11034, February 26, 1979), (3) Will not affect...-005-AD; Amendment 39-17439; AD 2013-08-21] RIN 2120-AA64 Airworthiness Directives; Diamond Aircraft... comments. SUMMARY: We are adopting a new airworthiness directive (AD) for Diamond Aircraft Industries...

  11. 77 FR 29863 - Airworthiness Directives; Cessna Aircraft Company Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-05-21

    ... Policies and Procedures (44 FR 11034, February 26, 1979), (3) Will not affect intrastate aviation in Alaska...-015-AD; Amendment 39-17053; AD 2012-10-04] RIN 2120-AA64 Airworthiness Directives; Cessna Aircraft... comments. SUMMARY: We are adopting a new airworthiness directive (AD) for certain Cessna Aircraft...

  12. Mission management aircraft operations manual

    NASA Technical Reports Server (NTRS)

    1992-01-01

    This manual prescribes the NASA mission management aircraft program and provides policies and criteria for the safe and economical operation, maintenance, and inspection of NASA mission management aircraft. The operation of NASA mission management aircraft is based on the concept that safety has the highest priority. Operations involving unwarranted risks will not be tolerated. NASA mission management aircraft will be designated by the Associate Administrator for Management Systems and Facilities. NASA mission management aircraft are public aircraft as defined by the Federal Aviation Act of 1958. Maintenance standards, as a minimum, will meet those required for retention of Federal Aviation Administration (FAA) airworthiness certification. Federal Aviation Regulation Part 91, Subparts A and B, will apply except when requirements of this manual are more restrictive.

  13. 14 CFR 121.709 - Airworthiness release or aircraft log entry.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... 14 Aeronautics and Space 3 2010-01-01 2010-01-01 false Airworthiness release or aircraft log entry... Airworthiness release or aircraft log entry. (a) No certificate holder may operate an aircraft after maintenance... appropriate entry in the aircraft log. (b) The airworthiness release or log entry required by paragraph (a)...

  14. 77 FR 39623 - Airworthiness Standards: Aircraft Engines; Technical Amendment

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-07-05

    .... SUMMARY: This amendment clarifies aircraft engine vibration test requirements in the airworthiness...: Background The airworthiness standards in Sec. 33.83 refer to engine surveys, vibration surveys, vibration test, or simply surveys with the intent to prescribe engine vibration surveys conducted by the means...

  15. 78 FR 23698 - Airworthiness Directives; Sikorsky Aircraft Corporation Helicopters

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-04-22

    ... ``significant rule'' under the DOT Regulatory Policies and Procedures (44 FR 11034, February 26, 1979); 3. Will... Federal Aviation Administration 14 CFR Part 39 RIN 2120-AA64 Airworthiness Directives; Sikorsky Aircraft... rulemaking (NPRM). SUMMARY: We propose to adopt a new airworthiness directive (AD) for Sikorsky...

  16. 77 FR 34281 - Airworthiness Directives; Schweizer Aircraft Corporation

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-06-11

    ...'' under the DOT Regulatory Policies and Procedures (44 FR 11034, February 26, 1979); 3. Will not affect... Federal Aviation Administration 14 CFR Part 39 RIN 2120-AA64 Airworthiness Directives; Schweizer Aircraft...). SUMMARY: This document proposes to adopt a new airworthiness directive (AD) for Schweizer...

  17. 78 FR 54561 - Airworthiness Directives; Piper Aircraft, Inc. Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-09-05

    ... effective September 5, 2013. The effective date for AD 2013-10-04 (78 FR 35110, June 12, 2013) remains July... INFORMATION: Airworthiness Directive 2013-10-04 (78 FR 35110, June 12, 2013), currently requires a detailed...-17457; AD 2013-10-04] RIN 2120-AA64 Airworthiness Directives; Piper Aircraft, Inc. Airplanes...

  18. 77 FR 28328 - Airworthiness Directives; Sikorsky Aircraft Corporation Helicopters

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-05-14

    ... Regulatory Policies and Procedures (44 FR 11034, February 26, 1979); 3. Will not affect intrastate aviation... Federal Aviation Administration 14 CFR Part 39 RIN 2120-AA64 Airworthiness Directives; Sikorsky Aircraft... rulemaking (NPRM). SUMMARY: We propose to adopt a new airworthiness directive (AD) for Sikorsky...

  19. 78 FR 56150 - Airworthiness Directives; Piper Aircraft, Inc. Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-09-12

    ... final rule is effective September 12, 2013. The effective date for AD 2013-13-01 (78 FR 41277, July 10... . SUPPLEMENTARY INFORMATION: Airworthiness Directive 2013-13-01, Amendment 39-17489 (78 FR 41277, July 10, 2013...-018-AD; Amendment 39-17489; AD 2013-13-01] RIN 2120-AA64 Airworthiness Directives; Piper Aircraft,...

  20. 78 FR 28125 - Airworthiness Directives; Twin Commander Aircraft LLC Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-05-14

    ... Aircraft LLC Airplanes AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Final rule; request for comments. SUMMARY: We are adopting a new airworthiness directive (AD) for certain Twin Commander Aircraft..., contact Twin Commander Aircraft LLC; 1176 Telecom Drive, Creedmoor, NC 27522; telephone: (360)...

  1. 76 FR 48047 - Airworthiness Directives; Diamond Aircraft Industries Powered Sailplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-08-08

    ... Procedures (44 FR 11034, February 26, 1979); and 3. Will not have a significant economic impact, positive or... Federal Aviation Administration 14 CFR Part 39 RIN 2120-AA64 Airworthiness Directives; Diamond Aircraft... directive (AD) for Diamond Aircraft Industries Model H-36 ``DIMONA'' powered sailplanes. This proposed...

  2. 77 FR 59146 - Airworthiness Directives; Cessna Aircraft Company Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-09-26

    ... ``significant rule'' under the DOT Regulatory Policies and Procedures (44 FR 11034, February 26, 1979), (3) Will... Federal Aviation Administration 14 CFR Part 39 RIN 2120-AA64 Airworthiness Directives; Cessna Aircraft... Aircraft Company Model 500, 501, 550, 551, S550, 560, 560XL, and 650 airplanes. This proposed AD...

  3. 77 FR 68058 - Airworthiness Directives; Sikorsky Aircraft Corporation Helicopters

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-11-15

    ... Order 12866; 2. Is not a ``significant rule'' under DOT Regulatory Policies and Procedures (44 FR 11034...-062-AD; Amendment 39-17251; AD 2012-22-14] RIN 2120-AA64 Airworthiness Directives; Sikorsky Aircraft... Aircraft Corporation (Sikorsky) Model S-70, S-70A, S-70C, S-70C(M), and S-70C(M1) helicopters with...

  4. 77 FR 75590 - Airworthiness Directives; Cessna Aircraft Company Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-12-21

    ... Policies and Procedures (44 FR 11034, February 26, 1979), (3) Will not affect intrastate aviation in Alaska... Federal Aviation Administration 14 CFR Part 39 RIN 2120-AA64 Airworthiness Directives; Cessna Aircraft... Aircraft Company (Cessna) (previously COLUMBIA or LANCAIR) Models LC40-550FG, LC41-550FG, and...

  5. 78 FR 24689 - Airworthiness Directives; PILATUS Aircraft Ltd. Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-04-26

    ... Policies and Procedures (44 FR 11034, February 26, 1979), (3) Will not affect intrastate aviation in Alaska... Directives; PILATUS Aircraft Ltd. Airplanes AGENCY: Federal Aviation Administration (FAA), Department of... airworthiness directive (AD) for all PILATUS Aircraft Ltd. Model PC-7 airplanes. This proposed AD results...

  6. Airworthiness criteria development for powered-lift aircraft: A program summary

    NASA Technical Reports Server (NTRS)

    Heffley, R. K.; Stapleford, R. L.; Rumold, R. C.

    1977-01-01

    A four-year simulation program to develop airworthiness criteria for powered-lift aircraft is summarized. All flight phases affected by use of powered lift (approach, landing, takeoff) are treated with regard to airworthiness problem areas (limiting flight conditions and safety margins: stability, control, and performance; and systems failure). The general features of powered-lift aircraft are compared to conventional aircraft.

  7. 14 CFR 21.184 - Issue of special airworthiness certificates for primary category aircraft.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... for primary category aircraft. 21.184 Section 21.184 Aeronautics and Space FEDERAL AVIATION... Airworthiness Certificates § 21.184 Issue of special airworthiness certificates for primary category aircraft. (a) New primary category aircraft manufactured under a production certificate. An applicant for...

  8. Considerations of Unmanned Aircraft Classification for Civil Airworthiness Standards

    NASA Technical Reports Server (NTRS)

    Maddalon, Jeffrey M.; Hayhurst, Kelly J.; Morris, A. Terry; Verstynen, Harry A.

    2013-01-01

    The use of unmanned aircraft in the National Airspace System (NAS) has been characterized as the next great step forward in the evolution of civil aviation. Although use of unmanned aircraft systems (UAS) in military and public service operations is proliferating, civil use of UAS remains limited in the United States today. This report focuses on one particular regulatory challenge: classifying UAS to assign airworthiness standards. Classification is useful for ensuring that meaningful differences in design are accommodated by certification to different standards, and that aircraft with similar risk profiles are held to similar standards. This paper provides observations related to how the current regulations for classifying manned aircraft, based on dimensions of aircraft class and operational aircraft categories, could apply to UAS. This report finds that existing aircraft classes are well aligned with the types of UAS that currently exist; however, the operational categories are more difficult to align to proposed UAS use in the NAS. Specifically, the factors used to group manned aircraft into similar risk profiles do not necessarily capture all relevant UAS risks. UAS classification is investigated through gathering approaches to classification from a broad spectrum of organizations, and then identifying and evaluating the classification factors from these approaches. This initial investigation concludes that factors in addition to those currently used today to group manned aircraft for the purpose of assigning airworthiness standards will be needed to adequately capture risks associated with UAS and their operations.

  9. Perspectives on Unmanned Aircraft Classification for Civil Airworthiness Standards

    NASA Technical Reports Server (NTRS)

    Maddalon, Jeffrey M.; Hayhurst, Kelly J.; Koppen, Daniel M.; Upchurch, Jason M.; Morris, A. Terry; Verstynen, Harry A.

    2013-01-01

    The use of unmanned aircraft in the National Airspace System (NAS) has been characterized as the next great step forward in the evolution of civil aviation. Although use of unmanned aircraft systems (UAS) in military and public service operations is proliferating, civil use of UAS remains limited in the United States today. This report focuses on one particular regulatory challenge: classifying UAS to assign airworthiness standards. This paper provides observations related to how the current regulations for classifying manned aircraft could apply to UAS.

  10. 14 CFR 21.339 - Special export airworthiness approval for aircraft.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ..., information, and materials be furnished; and (2) He has the documents, information, and materials necessary to... prescribes the form and manner in which an export airworthiness approval for an aircraft engine, propeller....331 Issuance of export airworthiness approvals for aircraft engines, propellers, and articles. (a)...

  11. 78 FR 32081 - Airworthiness Directives; Aircraft Industries a.s. Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-05-29

    ... (44 FR 11034, February 26, 1979), (3) Will not affect intrastate aviation in Alaska, and (4) Will not...-011-AD; Amendment 39-17462; AD 2013-11-02] RIN 2120-AA64 Airworthiness Directives; Aircraft Industries... comments. SUMMARY: We are adopting a new airworthiness directive (AD) for Aircraft Industries a.s. Model...

  12. 14 CFR 21.190 - Issue of a special airworthiness certificate for a light-sport category aircraft.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... certificate for a light-sport category aircraft. 21.190 Section 21.190 Aeronautics and Space FEDERAL AVIATION... Airworthiness Certificates § 21.190 Issue of a special airworthiness certificate for a light-sport category aircraft. (a) Purpose. The FAA issues a special airworthiness certificate in the light-sport category...

  13. 14 CFR 21.190 - Issue of a special airworthiness certificate for a light-sport category aircraft.

    Code of Federal Regulations, 2013 CFR

    2013-01-01

    ... certificate for a light-sport category aircraft. 21.190 Section 21.190 Aeronautics and Space FEDERAL AVIATION... Airworthiness Certificates § 21.190 Issue of a special airworthiness certificate for a light-sport category aircraft. (a) Purpose. The FAA issues a special airworthiness certificate in the light-sport category...

  14. 14 CFR 21.190 - Issue of a special airworthiness certificate for a light-sport category aircraft.

    Code of Federal Regulations, 2012 CFR

    2012-01-01

    ... certificate for a light-sport category aircraft. 21.190 Section 21.190 Aeronautics and Space FEDERAL AVIATION... Airworthiness Certificates § 21.190 Issue of a special airworthiness certificate for a light-sport category aircraft. (a) Purpose. The FAA issues a special airworthiness certificate in the light-sport category...

  15. 14 CFR 21.190 - Issue of a special airworthiness certificate for a light-sport category aircraft.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... certificate for a light-sport category aircraft. 21.190 Section 21.190 Aeronautics and Space FEDERAL AVIATION... Airworthiness Certificates § 21.190 Issue of a special airworthiness certificate for a light-sport category aircraft. (a) Purpose. The FAA issues a special airworthiness certificate in the light-sport category...

  16. 78 FR 1728 - Airworthiness Directives; Thielert Aircraft Engines GmbH Reciprocating Engines

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-01-09

    .... SUMMARY: We are adopting a new airworthiness directive (AD) for all Thielert Aircraft Engines GmbH (TAE... the following new AD: 2012-26-12 Thielert Aircraft Engines GmbH: Amendment 39-17307; Docket No. FAA... Thielert Aircraft Engines (TAE) TAE 125- 02-99 and TAE 125-02-114 reciprocating engines. (d) Reason This...

  17. 14 CFR 135.443 - Airworthiness release or aircraft maintenance log entry.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... maintenance log entry. 135.443 Section 135.443 Aeronautics and Space FEDERAL AVIATION ADMINISTRATION... release or aircraft maintenance log entry. (a) No certificate holder may operate an aircraft after... (2) An appropriate entry in the aircraft maintenance log. (b) The airworthiness release or log...

  18. 76 FR 1349 - Airworthiness Directives; Cessna Aircraft Company (Cessna) (Type Certificate A00003SE Previously...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-01-10

    ... Company (Cessna) (Type Certificate A00003SE Previously Held by Columbia Aircraft Manufacturing (Previously... airworthiness directive (AD): 2010-26-54 Cessna Aircraft Company (Type Certificate A00003SE previously held by...) None. Applicability (c) This AD applies to the following Cessna Aircraft Company (Cessna)...

  19. 75 FR 52292 - Airworthiness Directives; Diamond Aircraft Industries GmbH Models DA 40 and DA 40F Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-08-25

    ... ``significant rule'' under the DOT Regulatory Policies and Procedures (44 FR 11034, February 26, 1979); and 3... Federal Aviation Administration 14 CFR Part 39 RIN 2120-AA64 Airworthiness Directives; Diamond Aircraft... new airworthiness directive (AD) for all Diamond Aircraft Industries GmbH Models DA 40 and DA...

  20. 78 FR 66666 - Airworthiness Directives; Diamond Aircraft Industries GmbH Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-11-06

    ... ``significant rule'' under the DOT Regulatory Policies and Procedures (44 FR 11034, February 26, 1979), (3) Will... Federal Aviation Administration 14 CFR Part 39 RIN 2120-AA64 Airworthiness Directives; Diamond Aircraft... (AD) for certain Diamond Aircraft Industries GmbH Models DA 42 NG and DA 42 M-NG airplanes....

  1. 78 FR 40642 - Airworthiness Directives; Diamond Aircraft Industries GmbH Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-07-08

    ... Policies and Procedures (44 FR 11034, February 26, 1979), (3) Will not affect intrastate aviation in Alaska... Federal Aviation Administration 14 CFR Part 39 RIN 2120-AA64 Airworthiness Directives; Diamond Aircraft... (AD) for Diamond Aircraft Industries GmbH Models DA 42, DA 42 NG, and DA 42 M-NG airplanes....

  2. 77 FR 35890 - Airworthiness Directives; Diamond Aircraft Industries GmbH Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-06-15

    ... 12866, (2) Is not a ``significant rule'' under the DOT Regulatory Policies and Procedures (44 FR 11034... Federal Aviation Administration 14 CFR Part 39 RIN 2120-AA64 Airworthiness Directives; Diamond Aircraft... (AD) for certain Diamond Aircraft Industries GmbH Models DA 42, DA 42 NG, and DA 42 M-NG...

  3. 76 FR 14346 - Airworthiness Directives; Diamond Aircraft Industries GmbH Model DA 42 Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-03-16

    ... 12866; 2. Is not a ``significant rule'' under the DOT Regulatory Policies and Procedures (44 FR 11034... Federal Aviation Administration 14 CFR Part 39 RIN 2120-AA64 Airworthiness Directives; Diamond Aircraft... identified in this proposed AD, contact Diamond Aircraft Industries GmbH, N.A. Otto-Stra e 5, A-2700...

  4. 14 CFR 21.331 - Issuance of export airworthiness approvals for aircraft engines, propellers, and articles.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... for aircraft engines, propellers, and articles. 21.331 Section 21.331 Aeronautics and Space FEDERAL... engines, propellers, and articles. (a) A person may obtain from the FAA an export airworthiness approval to export a new aircraft engine, propeller, or article that is manufactured under this part if...

  5. 14 CFR 21.331 - Issuance of export airworthiness approvals for aircraft engines, propellers, and articles.

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ... for aircraft engines, propellers, and articles. 21.331 Section 21.331 Aeronautics and Space FEDERAL... engines, propellers, and articles. (a) A person may obtain from the FAA an export airworthiness approval to export a new aircraft engine, propeller, or article that is manufactured under this part if...

  6. 14 CFR 21.331 - Issuance of export airworthiness approvals for aircraft engines, propellers, and articles.

    Code of Federal Regulations, 2012 CFR

    2012-01-01

    ... for aircraft engines, propellers, and articles. 21.331 Section 21.331 Aeronautics and Space FEDERAL... engines, propellers, and articles. (a) A person may obtain from the FAA an export airworthiness approval to export a new aircraft engine, propeller, or article that is manufactured under this part if...

  7. 14 CFR 21.331 - Issuance of export airworthiness approvals for aircraft engines, propellers, and articles.

    Code of Federal Regulations, 2013 CFR

    2013-01-01

    ... for aircraft engines, propellers, and articles. 21.331 Section 21.331 Aeronautics and Space FEDERAL... engines, propellers, and articles. (a) A person may obtain from the FAA an export airworthiness approval to export a new aircraft engine, propeller, or article that is manufactured under this part if...

  8. 14 CFR 121.709 - Airworthiness release or aircraft log entry.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... 14 Aeronautics and Space 3 2011-01-01 2011-01-01 false Airworthiness release or aircraft log entry. 121.709 Section 121.709 Aeronautics and Space FEDERAL AVIATION ADMINISTRATION, DEPARTMENT OF... aircraft is in condition for safe operation; and (3) Be signed by an authorized certificated mechanic...

  9. Aircraft operations management manual

    NASA Technical Reports Server (NTRS)

    1992-01-01

    The NASA aircraft operations program is a multifaceted, highly diverse entity that directly supports the agency mission in aeronautical research and development, space science and applications, space flight, astronaut readiness training, and related activities through research and development, program support, and mission management aircraft operations flights. Users of the program are interagency, inter-government, international, and the business community. This manual provides guidelines to establish policy for the management of NASA aircraft resources, aircraft operations, and related matters. This policy is an integral part of and must be followed when establishing field installation policy and procedures covering the management of NASA aircraft operations. Each operating location will develop appropriate local procedures that conform with the requirements of this handbook. This manual should be used in conjunction with other governing instructions, handbooks, and manuals.

  10. 14 CFR 91.327 - Aircraft having a special airworthiness certificate in the light-sport category: Operating...

    Code of Federal Regulations, 2012 CFR

    2012-01-01

    ... certificate in the light-sport category: Operating limitations. 91.327 Section 91.327 Aeronautics and Space... special airworthiness certificate in the light-sport category: Operating limitations. (a) No person may operate an aircraft that has a special airworthiness certificate in the light-sport category...

  11. 14 CFR 91.327 - Aircraft having a special airworthiness certificate in the light-sport category: Operating...

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ... certificate in the light-sport category: Operating limitations. 91.327 Section 91.327 Aeronautics and Space... special airworthiness certificate in the light-sport category: Operating limitations. (a) No person may operate an aircraft that has a special airworthiness certificate in the light-sport category...

  12. 14 CFR 91.327 - Aircraft having a special airworthiness certificate in the light-sport category: Operating...

    Code of Federal Regulations, 2013 CFR

    2013-01-01

    ... certificate in the light-sport category: Operating limitations. 91.327 Section 91.327 Aeronautics and Space... special airworthiness certificate in the light-sport category: Operating limitations. (a) No person may operate an aircraft that has a special airworthiness certificate in the light-sport category...

  13. 75 FR 66700 - Airworthiness Directives; Cessna Aircraft Company (Cessna) Model 402C Airplanes Modified by...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-10-29

    ... Procedures (44 FR 11034, February 26, 1979), (3) Will not affect intrastate aviation in Alaska, and (4) Will... ``Docket No. FAA-2010-1084; Directorate Identifier 2010-CE-056-AD'' at the beginning of your comments. We... following new airworthiness directive (AD): Cessna Aircraft Company: Docket No. FAA-2010-1084;...

  14. 14 CFR 135.443 - Airworthiness release or aircraft maintenance log entry.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... 14 Aeronautics and Space 3 2011-01-01 2011-01-01 false Airworthiness release or aircraft maintenance log entry. 135.443 Section 135.443 Aeronautics and Space FEDERAL AVIATION ADMINISTRATION... mechanic or repairman, except that a certificated repairman may sign the release or entry only for the...

  15. 14 CFR 91.1443 - CAMP: Airworthiness release or aircraft maintenance log entry.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... 14 Aeronautics and Space 2 2011-01-01 2011-01-01 false CAMP: Airworthiness release or aircraft maintenance log entry. 91.1443 Section 91.1443 Aeronautics and Space FEDERAL AVIATION ADMINISTRATION... certificated mechanic. (c) Notwithstanding paragraph (b)(3) of this section, after maintenance,...

  16. 75 FR 17084 - Airworthiness Directives; Thielert Aircraft Engines GmbH (TAE) Model TAE 125-01 Reciprocating...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-04-05

    ... Federal holidays. Fax: (202) 493-2251. Contact Thielert Aircraft Engines GmbH, Platanenstrasse 14 D-09350.... 39.13 by adding the following new AD: Thielert Aircraft Engines GmbH: Docket No. FAA-2010-0308... Airworthiness Directives (ADs) (b) None. Applicability (c) This AD applies to Thielert Aircraft Engines...

  17. 14 CFR 91.1443 - CAMP: Airworthiness release or aircraft maintenance log entry.

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ... RULES Fractional Ownership Operations Program Management § 91.1443 CAMP: Airworthiness release or... employed by the program manager prepare, or cause the person with whom the program manager arranges for the... in the program manager's manual; (2) Include a certification that— (i) The work was performed...

  18. 14 CFR 39.23 - May I fly my aircraft to a repair facility to do the work required by an airworthiness directive?

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ... 14 Aeronautics and Space 1 2014-01-01 2014-01-01 false May I fly my aircraft to a repair facility to do the work required by an airworthiness directive? 39.23 Section 39.23 Aeronautics and Space FEDERAL AVIATION ADMINISTRATION, DEPARTMENT OF TRANSPORTATION AIRCRAFT AIRWORTHINESS DIRECTIVES §...

  19. 78 FR 42723 - Airworthiness Directives; Pilatus Aircraft Ltd. Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-07-17

    ... Regulatory Policies and Procedures (44 FR 11034, February 26, 1979), (3) Will not affect intrastate aviation..., notify your appropriate principal inspector (PI) in the FAA Flight Standards District Office (FSDO), or lacking a PI, your local FSDO. (2) Airworthy Product: For any requirement in this AD to obtain...

  20. 78 FR 42417 - Airworthiness Directives; Pilatus Aircraft Ltd. Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-07-16

    ...'' under the DOT Regulatory Policies and Procedures (44 FR 11034, February 26, 1979), (3) Will not affect... the AMOC applies, notify your appropriate principal inspector (PI) in the FAA Flight Standards District Office (FSDO), or lacking a PI, your local FSDO. (2) Airworthy Product: For any requirement...

  1. 77 FR 67561 - Airworthiness Directives; Univair Aircraft Corporation Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-11-13

    ... correction is effective November 13, 2012. The effective date of AD 2012-08-06, amendment 39-17023 (77 FR....caldwell@faa.gov . SUPPLEMENTARY INFORMATION: Airworthiness Directive 2012-08-06, amendment 39-17023 (77 FR... 2012-08-06; Amendment 39-17023 (77 FR 52205, August 29, 2012) is corrected as follows: On page...

  2. 77 FR 56581 - Airworthiness Directives; Sikorsky Aircraft Corporation Helicopters

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-09-13

    ... 10, 2009 (74 FR 65496). The NPRM proposed revising the RFM SA S92A-RFM-003, Part 1, Section 1... ``significant rule'' under the DOT Regulatory Policies and Procedures (44 FR 11034, February 26, 1979); 3. Will... Federal Aviation Administration 14 CFR Part 39 RIN 2120-AA64 Airworthiness Directives; Sikorsky...

  3. 77 FR 4699 - Airworthiness Directives; Pilatus Aircraft Ltd. Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-01-31

    ... submitting comments to the NPRM (77 FR 2238, January 17, 2012) remains March 2, 2012. ADDRESSES: You may...), Directorate Identifier 2011-CE-042-AD (77 FR 2238, January 17, 2012), currently proposes to require the... Federal Aviation Administration 14 CFR Part 39 RIN 2120-AA64 Airworthiness Directives; Pilatus...

  4. 78 FR 14729 - Airworthiness Directives; Pilatus Aircraft Ltd. Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-03-07

    ... proposed AD. Discussion On December 28, 2010, we issued AD 2011-01-14, Amendment 39-16571 (76 FR 5647... above. Since we issued AD 2011-01-14, (76 FR 5647; February 1, 2011), the airworthiness limitations of... ``significant rule'' under the DOT Regulatory Policies and Procedures (44 FR 11034, February 26, 1979), (3)...

  5. 77 FR 23382 - Airworthiness Directives; Sikorsky Aircraft Corporation Helicopters

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-04-19

    ... INFORMATION: Discussion On October 26, 2011, at 76 FR 66207, the Federal Register published our Notice of... Policies and Procedures (44 FR 11034, February 26, 1979); (3) Will not affect intrastate aviation in Alaska...-011-AD; Amendment 39-17017; AD 2012-08-01] RIN 2120-AA64 Airworthiness Directives; Sikorsky...

  6. 75 FR 39795 - Airworthiness Directives; Aircraft Industries a.s. (Type Certificate G60EU Previously Held by...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-07-13

    ... new AD: 2010-14-15 Aircraft Industries a.s. (Type Certificate G60EU Previously Held by LETECK Z VODY a...-031-AD; Amendment 39-16360; AD 2010-14-15] RIN 2120-AA64 Airworthiness Directives; Aircraft Industries a.s. (Type Certificate G60EU Previously Held by LETECK Z VODY a.s. and LET Aeronautical Works)...

  7. 75 FR 52250 - Airworthiness Directives; Aircraft Industries a.s. (Type Certificate G24EU Previously Held by...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-08-25

    ... adding the following new AD: 2010-18-05 Aircraft Industries a.s. (Type Certificate G24EU Previously Held...-042-AD; Amendment 39-16418; AD 2010-18-05] RIN 2120-AA64 Airworthiness Directives; Aircraft Industries a.s. (Type Certificate G24EU Previously Held by LETECK Z VODY a.s. and LET Aeronautical Works)...

  8. 14 CFR 91.327 - Aircraft having a special airworthiness certificate in the light-sport category: Operating...

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... 14 Aeronautics and Space 2 2011-01-01 2011-01-01 false Aircraft having a special airworthiness certificate in the light-sport category: Operating limitations. 91.327 Section 91.327 Aeronautics and Space... certificated repairman with a light-sport aircraft maintenance rating, an appropriately rated mechanic, or...

  9. Proceedings of the FAA-NASA Symposium on the Continued Airworthiness of Aircraft Structures. Volume 1

    NASA Technical Reports Server (NTRS)

    Bigelow, Catherine A. (Compiler)

    1997-01-01

    This publication contains the fifty-two technical papers presented at the FAA-NASA Symposium on the Continued Airworthiness of Aircraft Structures. The symposium, hosted by the FAA Center of Excellence for Computational Modeling of Aircraft Structures at Georgia Institute of Technology, was held to disseminate information on recent developments in advanced technologies to extend the life of high-time aircraft and design longer-life aircraft. Affiliations of the participants included 33% from government agencies and laboratories, 19% from academia, and 48% from industry; in all 240 people were in attendance. Technical papers were selected for presentation at the symposium, after a review of extended abstracts received by the Organizing Committee from a general call for papers.

  10. Proceedings of the FAA-NASA Symposium on the Continued Airworthiness of Aircraft Structures. Volume 2

    NASA Technical Reports Server (NTRS)

    Bigelow, Catherine A. (Compiler)

    1997-01-01

    This publication contains the fifty-two technical papers presented at the FAA-NASA Symposium on the Continued Airworthiness of Aircraft Structures. The symposium, hosted by the FAA Center of Excellence for Computational Modeling of Aircraft Structures at Georgia Institute of Technology, was held to disseminate information on recent developments in advanced technologies to extend the life of high-time aircraft and design longer-life aircraft. Affiliations of the participants included 33% from government agencies and laboratories, 19% from academia, and 48% from industry; in all 240 people were in attendance. Technical papers were selected for presentation at the symposium, after a review of extended abstracts received by the Organizing Committee from a general call for papers.

  11. 77 FR 45979 - Airworthiness Directives; Piper Aircraft, Inc. Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-08-02

    ... Regulatory Policies and Procedures (44 FR 11034, February 26, 1979), (3) Will not affect intrastate aviation... Directives; Piper Aircraft, Inc. Airplanes AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Notice... certain Piper Aircraft, Inc. (type certificate previously held by The New Piper Aircraft Inc.) PA-28,...

  12. 77 FR 2659 - Airworthiness Directives; Cessna Aircraft Company Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-01-19

    ... inspection of the torque lug and surrounding components (wheel base, side rim, lock ring) for damage (such as... Cessna Aircraft Co., P.O. Box 7706, Wichita, Kansas 67277-7706; telephone (316) 517-6215; fax (316) 517..., Aircraft Wheels & Brakes, P.O. Box 340, Troy, Ohio 45373-3872; telephone (937) 440-2130; fax (937)...

  13. 76 FR 53308 - Airworthiness Directives; Cessna Aircraft Company Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-08-26

    ..., amendment 39-16074 (74 FR 57408, November 6, 2009), for certain Cessna Aircraft Company (Cessna) Models 150F... 2009-10-09 R1, Amendment 39-16074 (74 FR 57408, November 6, 2009); Cessna Aircraft Company Service... elevator. Actions Since AD Was Issued Since we issued AD 2009-10-09 R1 (74 FR 57408, November 6,...

  14. 76 FR 82205 - Airworthiness Directives; Cessna Aircraft Company Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-12-30

    ... Procedures (44 FR 11034, February 26, 1979), (3) Will not affect intrastate aviation in Alaska, and (4) Will... Aircraft Company Airplanes AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Notice of proposed... Aircraft Company Model 560XL airplanes. This proposed AD was prompted by reports of jammed or stiff...

  15. 77 FR 41937 - Airworthiness Directives; Cessna Aircraft Company Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-07-17

    ... ``significant rule'' under the DOT Regulatory Policies and Procedures (44 FR 11034, February 26, 1979), (3) Will... Aircraft Company Airplanes AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Notice of proposed... Aircraft Company Model 750 airplanes. This proposed AD was prompted by reports of loss of...

  16. 78 FR 54385 - Airworthiness Directives; Various Aircraft Equipped With Rotax Aircraft Engines 912 A Series Engine

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-09-04

    ... Aircraft Equipped With Rotax Aircraft Engines 912 A Series Engine AGENCY: Federal Aviation Administration... directive (AD) for various aircraft equipped with Rotax Aircraft Engines 912 A Series Engine. This AD...; phone: +43 7246 601 0; fax: +43 7246 601 9130; Internet: http://www.rotax-aircraft-engines.com . You...

  17. 77 FR 1626 - Airworthiness Directives; Various Aircraft Equipped With Rotax Aircraft Engines 912 A Series Engine

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-01-11

    ... Equipped With Rotax Aircraft Engines 912 A Series Engine AGENCY: Federal Aviation Administration (FAA), DOT... various aircraft equipped with Rotax Aircraft Engines 912 A series engine. This AD results from mandatory... Rotax Aircraft Engines BRP has issued Alert Service Bulletin ASB- 912-059 and ASB-914-042...

  18. 75 FR 28504 - Airworthiness Directives; Various Aircraft Equipped With Rotax Aircraft Engines 912 A Series Engines

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-05-21

    ... Directives; Various Aircraft Equipped With Rotax Aircraft Engines 912 A Series Engines AGENCY: Federal... 912 A series engine installed in various aircraft does not have an engine type certificate; instead, the engine is part of the aircraft type design. You may obtain further information by examining...

  19. 14 CFR 39.23 - May I fly my aircraft to a repair facility to do the work required by an airworthiness directive?

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... 14 Aeronautics and Space 1 2010-01-01 2010-01-01 false May I fly my aircraft to a repair facility... May I fly my aircraft to a repair facility to do the work required by an airworthiness directive? Yes... allow them to fly their aircraft to a repair facility to do the work required by an...

  20. 14 CFR 39.23 - May I fly my aircraft to a repair facility to do the work required by an airworthiness directive?

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... 14 Aeronautics and Space 1 2011-01-01 2011-01-01 false May I fly my aircraft to a repair facility... May I fly my aircraft to a repair facility to do the work required by an airworthiness directive? Yes... allow them to fly their aircraft to a repair facility to do the work required by an...

  1. 14 CFR 39.23 - May I fly my aircraft to a repair facility to do the work required by an airworthiness directive?

    Code of Federal Regulations, 2013 CFR

    2013-01-01

    ... 14 Aeronautics and Space 1 2013-01-01 2013-01-01 false May I fly my aircraft to a repair facility... May I fly my aircraft to a repair facility to do the work required by an airworthiness directive? Yes... allow them to fly their aircraft to a repair facility to do the work required by an...

  2. 14 CFR 39.23 - May I fly my aircraft to a repair facility to do the work required by an airworthiness directive?

    Code of Federal Regulations, 2012 CFR

    2012-01-01

    ... 14 Aeronautics and Space 1 2012-01-01 2012-01-01 false May I fly my aircraft to a repair facility... May I fly my aircraft to a repair facility to do the work required by an airworthiness directive? Yes... allow them to fly their aircraft to a repair facility to do the work required by an...

  3. 78 FR 4053 - Airworthiness Directives; PILATUS Aircraft Ltd. Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-01-18

    ... fittings initially made of aluminium alloy AA2024-T351. Later in production, the material specification was... not a ``significant rule'' under the DOT Regulatory Policies and Procedures (44 FR 11034, February 26.... (c) Applicability This AD applies to PILATUS Aircraft Ltd. Models PC-7 airplanes, serial numbers...

  4. 77 FR 33083 - Airworthiness Directives; WACO Classic Aircraft Corporation Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-06-05

    ... Executive Order 12866, (2) Is not a ``significant rule'' under DOT Regulatory Policies and Procedures (44 FR... Aircraft Corporation Models 2T-1A, 2T-1A-1, and 2T-1A-2 airplanes. This AD requires inspection of the front... originated from around the circumference of the right stabilizer front spar and, in one incident,...

  5. 76 FR 67346 - Airworthiness Directives; Cessna Aircraft Company Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-11-01

    ... 12866, (2) Is not a ``significant rule'' under DOT Regulatory Policies and Procedures (44 FR 11034... operators of these airplanes. This AD requires replacing certain lithium-ion batteries installed as the main... equipped with a lithium-ion battery as the main aircraft battery. We are issuing this AD to correct...

  6. 77 FR 21420 - Airworthiness Directives; Cessna Aircraft Company Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-04-10

    ..., 2011 (76 FR 54141), and proposed to require adding diodes to the fuel cross-feed wiring, and revising... presents the comments received from Cessna Aircraft Company (Cessna), the manufacturer, on the NPRM (76 FR... commented that the NPRM (76 FR 54141, August 31, 2011) has incorrect references to certain AFM TCs, does...

  7. 77 FR 55770 - Airworthiness Directives; Cessna Aircraft Company Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-09-11

    ... Policies and Procedures (44 FR 11034, February 26, 1979), (3) Will not affect intrastate aviation in Alaska... area of the landing gear's hydraulic power pack system. This proposed AD would require you inspect the aircraft's hydraulic power pack wiring for incorrect installation, and if needed, correct the...

  8. 78 FR 4092 - Airworthiness Directives; Cessna Aircraft Company Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-01-18

    ... September 11, 2012 (77 FR ] 55770). That NPRM proposed to require you to inspect the aircraft's hydraulic... 12866, the Regulatory Flexibility Act, or DOT Regulatory Policies and Procedures (44 FR 11034, February.... FAA- 2012-0962, published in the Federal Register on September 11, 2012 (77 FR 55770), is...

  9. 77 FR 57534 - Airworthiness Directives; Piper Aircraft, Inc. Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-09-18

    ... occurred due to exhaust system failures upstream of aircraft turbochargers and between recurring detailed... the possibility of an inflight powerplant fire due to an exhaust system failure. DATES: We must... system failures downstream from turbochargers. We issued that AD to prevent the possibility of...

  10. 78 FR 17865 - Airworthiness Directives; PILATUS AIRCRAFT LTD. Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-03-25

    ... 39-15452 (73 FR 18433, April 4, 2008). (c) Applicability This AD applies to PILATUS AIRCRAFT LTD... INFORMATION: Discussion On March 27, 2008, we issued AD 2008-07-11, Amendment 39-15452 (73 FR 18433, April 4.... AD 2008-07-11, Amendment 39-15452 (73 FR 18433, April 4, 2008) was based on results of a...

  11. 78 FR 44048 - Airworthiness Directives; Sikorsky Aircraft Corporation (Sikorsky) Helicopters

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-07-23

    ... 39-14345 (70 FR 61721, October 26, 2005), and adding the following new AD: Sikorsky Aircraft.... Discussion On October 26, 2005, we issued AD 2005-22-01, amendment 39-14345 (70 FR 61721) for Sikorsky Model.... Is not a ``significant rule'' under the DOT Regulatory Policies and Procedures (44 FR 11034,...

  12. 78 FR 14640 - Airworthiness Directives; Cessna Aircraft Company Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-03-07

    ... presents the comments received on the proposal (77 FR 41937, July 17, 2012) and the FAA's response to each comment. Request To Change Compliance Time Cessna Aircraft Company (Cessna) requested that the NPRM (77 FR..., 2012 (77 FR 41937). That NPRM proposed to require inspecting certain logic modules to determine...

  13. 77 FR 50954 - Airworthiness Directives; Cessna Aircraft Company

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-08-23

    ... Aircraft Corporation). That NPRM published in the Federal Register on October 29, 2010 (75 FR 66700). That NPRM (75 FR 66700, October 29, 2010) was prompted by a report that a Cessna Model 414A airplane, which... configuration. That NPRM (75 FR 66700, October 29, 2010) proposed to require a complete inspection of the...

  14. 77 FR 64442 - Airworthiness Directives; PILATUS AIRCRAFT LTD. Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-10-22

    ... 39-15963 (74 FR 34213, July 15, 2009). (c) Applicability This AD applies to PILATUS AIRCRAFT LTD... the specified products, which was published in the Federal Register on July 18, 2012 (77 FR 42225). That earlier NPRM (77 FR 42225, July 18, 2012) proposed to require actions intended to address...

  15. 78 FR 11572 - Airworthiness Directives; Pilatus Aircraft Ltd. Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-02-19

    ... on August 19, 2009 (74 FR 34213, July 15, 2009). (i) Pilatus Aircraft Ltd. Service Bulletin No: 32... certain other publication listed in this AD as of August 19, 2009 (74 FR 34213, July 15, 2009). ADDRESSES... October 22, 2012 (77 FR 64442), which proposed to supersede AD 2009-14-13, Amendment 39-15963 (74 FR...

  16. 78 FR 37701 - Airworthiness Directives; Pilatus Aircraft Ltd. Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-06-24

    ..., Amendment 39-16571 (76 FR 5467; February 1, 2011). (c) Applicability This AD applies to Pilatus Aircraft Ltd... (78 FR 14729), and proposed to supersede AD 2011-01-14, Amendment 39-16571 76 FR 5467; February 1... minor changes: Are consistent with the intent that was proposed in the NPRM (78 FR 14729, March 7,...

  17. 78 FR 14726 - Airworthiness Directives; Cessna Aircraft Company Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-03-07

    ... 39-11583 (65 FR 8649, February 22, 2000). (c) Applicability This AD applies to Cessna Aircraft... the Federal Register on October 2, 2012 (77 FR 60062). That NPRM proposed to supersede an existing AD... life limit. Actions Since Previous NPRM Was Issued Since we issued the previous NPRM (77 FR...

  18. 77 FR 56993 - Airworthiness Directives; Piper Aircraft, Inc. Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-09-17

    ... models in the original NPRM (76 FR 36395, June 22, 2011). However, we disagree with excluding aircraft... published in the Federal Register on June 22, 2011 (76 FR 36395). That NPRM proposed to require replacement... FR 36395, June 22, 2011) Due to Adequacy of External Inspections Phil Ciholas requested we...

  19. 77 FR 70114 - Airworthiness Directives; Cessna Aircraft Company Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-11-23

    ..., 2012 (77 FR 6003, February 7, 2012). (i) Cessna Aircraft Company Cessna Service Bulletin SB07-28-01... publication listed in this AD as of March 13, 2012 (77 FR 6003, February 7, 2012). ADDRESSES: For service... Register on August 20, 2012 (77 FR 50054). That NPRM proposed to require you to inspect the fuel...

  20. 77 FR 31169 - Airworthiness Directives; Piper Aircraft, Inc. Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-05-25

    ... (45 FR 35309, May 27, 1980), and adding the following new AD: ] 2012-10-09 Piper Aircraft, Inc. (Type... AD 80-11-06, amendment 39-3776 (45 FR 35309, May 27, 1980). That AD applies to the specified products. The NPRM published in the Federal Register on March 9, 2012 (77 FR 14316). The NPRM proposed to...

  1. 75 FR 70098 - Airworthiness Directives; Various Aircraft Equipped With Rotax Aircraft Engines 912 A Series Engines

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-11-17

    ... Equipped With Rotax Aircraft Engines 912 A Series Engines AGENCY: Federal Aviation Administration (FAA... Aircraft Engines 912 A series engine with a crankcase assembly S/N up to and including S/N 27811, certificated in any category: ] Type certificate holder Aircraft model Engine model Aeromot-Industria...

  2. 75 FR 32315 - Airworthiness Directives; Various Aircraft Equipped With Rotax Aircraft Engines 912 A Series Engines

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-06-08

    ... Equipped With Rotax Aircraft Engines 912 A Series Engines AGENCY: Federal Aviation Administration (FAA... certificated in the United States. However, the Model 912 A series engine installed in various aircraft does not have an engine type certificate; instead, the engine is part of the aircraft type design. You...

  3. 14 CFR 121.363 - Responsibility for airworthiness.

    Code of Federal Regulations, 2013 CFR

    2013-01-01

    ...) The airworthiness of its aircraft, including airframes, aircraft engines, propellers, appliances, and... aircraft, including airframes, aircraft engines, propellers, appliances, emergency equipment, and...

  4. 14 CFR 121.363 - Responsibility for airworthiness.

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ...) The airworthiness of its aircraft, including airframes, aircraft engines, propellers, appliances, and... aircraft, including airframes, aircraft engines, propellers, appliances, emergency equipment, and...

  5. 14 CFR 121.363 - Responsibility for airworthiness.

    Code of Federal Regulations, 2012 CFR

    2012-01-01

    ...) The airworthiness of its aircraft, including airframes, aircraft engines, propellers, appliances, and... aircraft, including airframes, aircraft engines, propellers, appliances, emergency equipment, and...

  6. 14 CFR 121.363 - Responsibility for airworthiness.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ...) The airworthiness of its aircraft, including airframes, aircraft engines, propellers, appliances, and... aircraft, including airframes, aircraft engines, propellers, appliances, emergency equipment, and...

  7. 14 CFR 121.363 - Responsibility for airworthiness.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ...) The airworthiness of its aircraft, including airframes, aircraft engines, propellers, appliances, and... aircraft, including airframes, aircraft engines, propellers, appliances, emergency equipment, and...

  8. The effect of a single standard of engineering safety (S3E) on the airworthiness of military derivative aircraft

    NASA Astrophysics Data System (ADS)

    Lasaxon, Victor Manuel

    Scope and method of study. The purpose of this experimental study was to examine the effects of applying a single standard of engineering safety (S3E) on the airworthiness of military derivative aircraft. For the purpose of this study, S3E is defined as the use of commercial standards for airworthiness in embodied in Federal Aviation Regulation (FAR) 121 and Federal Aviation Administration (FAA) Order 8300.10, then tailored and applied to the Department of Defense (DOD). Using a S3E audit normally used to inspect airlines but specially tailored to the military two randomly selected military units were pre-tested. Although the random selection was blind to the study it is known that the units were of different services but operated the same type of commercially built and certified military derivative aircraft. It is also known that their force of strength and fleet size were the same. After the pre-test, one unit was treated by exposure to S3E commercial standards for airworthiness per FAR Part 121 and FAA Order 8300.10 and the other unit was not. After 90 days, both units were post-tested. Percent change comparison on the pre and post test as well as the chi squared technique was used to analyze the data. Findings and conclusions. The results of the study indicate that the treated unit experienced significant improvement in airworthiness compliance and the control unit did not. It was concluded that S3E had a positive effect in this first of its kind study, but further and expanded research needs to continue.

  9. 77 FR 34283 - Airworthiness Directives; Airbus Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-06-11

    ... series airplanes. Comments We have considered the following comment received on the earlier NPRM (76 FR... Manager, Transport Airplane Directorate, Aircraft Certification Service. BILLING CODE 4910-13-P ... Federal Aviation Administration 14 CFR Part 39 RIN 2120-AA64 Airworthiness Directives; Airbus...

  10. 76 FR 6525 - Airworthiness Directives; Cessna Aircraft Company (Type Certificate Previously Held by Columbia...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-02-07

    ... Company (Type Certificate Previously Held by Columbia Aircraft Manufacturing (Previously the Lancair... Aircraft Company (Type Certificate Previously Held by Columbia Aircraft Manufacturing (Previously The... Aircraft Company (type certificate previously held by Columbia Aircraft Manufacturing (previously...

  11. 14 CFR 33.4 - Instructions for Continued Airworthiness.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... AIRCRAFT AIRWORTHINESS STANDARDS: AIRCRAFT ENGINES General § 33.4 Instructions for Continued Airworthiness... certification if a program exists to ensure their completion prior to delivery of the first aircraft with the engine installed, or upon issuance of a standard certificate of airworthiness for the aircraft with...

  12. 78 FR 79599 - Airworthiness Directives; Various Aircraft Equipped With Wing Lift Struts

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-12-31

    ...: Airworthiness Directive 99-01-05 R1, Amendment 39-17688 (78 FR 73997, December 10, 2013), will require... published in the Federal Register on January 16, 2013 (78 FR 3356). No other part of the preamble...

  13. 75 FR 66009 - Airworthiness Directives; Cessna Aircraft Company (Type Certificate Previously Held by Columbia...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-10-27

    ... Company (Type Certificate Previously Held by Columbia Aircraft Manufacturing (Previously the Lancair... directive (AD): Cessna Aircraft Company (Type Certificate Previously Held by Columbia Aircraft Manufacturing... Company (type certificate previously held by Columbia Aircraft Manufacturing (previously The...

  14. 14 CFR 91.1411 - Continuous airworthiness maintenance program use by fractional ownership program manager.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... program use by fractional ownership program manager. 91.1411 Section 91.1411 Aeronautics and Space FEDERAL... GENERAL OPERATING AND FLIGHT RULES Fractional Ownership Operations Program Management § 91.1411 Continuous airworthiness maintenance program use by fractional ownership program manager. Fractional ownership...

  15. 14 CFR 91.1411 - Continuous airworthiness maintenance program use by fractional ownership program manager.

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ... program use by fractional ownership program manager. 91.1411 Section 91.1411 Aeronautics and Space FEDERAL... GENERAL OPERATING AND FLIGHT RULES Fractional Ownership Operations Program Management § 91.1411 Continuous airworthiness maintenance program use by fractional ownership program manager. Fractional ownership...

  16. 14 CFR 35.4 - Instructions for Continued Airworthiness.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... AIRCRAFT AIRWORTHINESS STANDARDS: PROPELLERS General § 35.4 Instructions for Continued Airworthiness. The... program exists to ensure their completion prior to delivery of the first aircraft with the propeller installed, or upon issuance of a standard certificate of airworthiness for an aircraft with the...

  17. 14 CFR 35.4 - Instructions for Continued Airworthiness.

    Code of Federal Regulations, 2013 CFR

    2013-01-01

    ... AIRCRAFT AIRWORTHINESS STANDARDS: PROPELLERS General § 35.4 Instructions for Continued Airworthiness. The... program exists to ensure their completion prior to delivery of the first aircraft with the propeller installed, or upon issuance of a standard certificate of airworthiness for an aircraft with the...

  18. 14 CFR 35.4 - Instructions for Continued Airworthiness.

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ... AIRCRAFT AIRWORTHINESS STANDARDS: PROPELLERS General § 35.4 Instructions for Continued Airworthiness. The... program exists to ensure their completion prior to delivery of the first aircraft with the propeller installed, or upon issuance of a standard certificate of airworthiness for an aircraft with the...

  19. 14 CFR 35.4 - Instructions for Continued Airworthiness.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... AIRCRAFT AIRWORTHINESS STANDARDS: PROPELLERS General § 35.4 Instructions for Continued Airworthiness. The... program exists to ensure their completion prior to delivery of the first aircraft with the propeller installed, or upon issuance of a standard certificate of airworthiness for an aircraft with the...

  20. 14 CFR 35.4 - Instructions for Continued Airworthiness.

    Code of Federal Regulations, 2012 CFR

    2012-01-01

    ... AIRCRAFT AIRWORTHINESS STANDARDS: PROPELLERS General § 35.4 Instructions for Continued Airworthiness. The... program exists to ensure their completion prior to delivery of the first aircraft with the propeller installed, or upon issuance of a standard certificate of airworthiness for an aircraft with the...

  1. 78 FR 41836 - Airworthiness Directives; Sikorsky Aircraft Corporation (Sikorsky) Model Helicopters

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-07-12

    ... final rule is effective July 12, 2013. The effective date for AD 2012-23-13 (77 FR 71087, November 29...: Airworthiness Directive 2012-23-13, Amendment 39-17269 (77 FR 71087, November 29, 2012), currently includes the... published in the Federal Register. Comments After we published our Final rule; request for comments (77...

  2. 75 FR 59170 - Airworthiness Directives; British Aerospace Regional Aircraft Models Jetstream Series 3101 and...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-09-27

    ... rule'' under the DOT Regulatory Policies and Procedures (44 FR 11034, February 26, 1979); and 3. Will... Federal Aviation Administration 14 CFR Part 39 RIN 2120-AA64 Airworthiness Directives; British Aerospace... available in the AD docket shortly after receipt. FOR FURTHER INFORMATION CONTACT: Taylor Martin,...

  3. 75 FR 75882 - Airworthiness Directives; British Aerospace Regional Aircraft Models Jetstream Series 3101 and...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-12-07

    ... Register on September 27, 2010 (75 FR 59170). That NPRM proposed to correct an unsafe condition for the... Regulatory Policies and Procedures (44 FR 11034, February 26, 1979); and (3) Will not have a significant...-049-AD; Amendment 39-16535; AD 2010-25-02] RIN 2120-AA64 Airworthiness Directives; British...

  4. 76 FR 31457 - Airworthiness Directives; Diamond Aircraft Industries GmbH Model DA 42 Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-06-01

    ... (76 FR 14346). That NPRM proposed to correct an unsafe condition for the specified products. The MCAI... Regulatory Policies and Procedures (44 FR 11034, February 26, 1979); and (3) Will not have a significant...-003-AD; Amendment 39-16706; AD 2011-11-07] RIN 2120-AA64 Airworthiness Directives; Diamond...

  5. 75 FR 82335 - Airworthiness Directives; APEX Aircraft Model CAP 10 Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-12-30

    ... rule'' under the DOT Regulatory Policies and Procedures (44 FR 11034, February 26, 1979); and 3. Will... which the AMOC applies, notify your appropriate principal inspector (PI) in the FAA Flight Standards District Office (FSDO), or lacking a PI, your local FSDO. (2) Airworthy Product: For any requirement...

  6. 75 FR 82329 - Airworthiness Directives; Piper Aircraft, Inc. (Type Certificate Previously Held by The New Piper...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-12-30

    ... proposed AD. Discussion On May 17, 2000, we issued AD 99-15-04 R1, Amendment 39-11747 (65 FR 33745, May 25... and Procedures (44 FR 11034, February 26, 1979), (3) Will not affect intrastate aviation in Alaska.... 39.13 by removing airworthiness directive (AD) 99-15-04 R1, Amendment 39-11747 (65 FR 33745, May...

  7. 77 FR 55166 - Airworthiness Directives; Sikorsky Aircraft Corporation (Sikorsky) Model Helicopters

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-09-07

    ... Diagrams, and specify counting LCF events to determine the remaining fatigue life for specified GGT rotor... flight: Inserting the LCF limit diagrams into the airworthiness limitation section of the maintenance... LCF2 count from the engine ``history recorder'' (HR), and calculating the LCF1 and LCF2...

  8. 14 CFR 21.325 - Export airworthiness approvals.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... 14 Aeronautics and Space 1 2010-01-01 2010-01-01 false Export airworthiness approvals. 21.325... AIRCRAFT CERTIFICATION PROCEDURES FOR PRODUCTS AND PARTS Export Airworthiness Approvals § 21.325 Export airworthiness approvals. (a) Kinds of approvals. (1) Export airworthiness approval of Class I products is...

  9. 14 CFR Appendix A to Part 33 - Instructions for Continued Airworthiness

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... AIRCRAFT AIRWORTHINESS STANDARDS: AIRCRAFT ENGINES Pt. 33, App. A Appendix A to Part 33—Instructions for... Airworthiness for each engine must include the Instructions for Continued Airworthiness for all engine parts. If Instructions for Continued Airworthiness are not supplied by the engine part manufacturer for an engine...

  10. 75 FR 78177 - Airworthiness Directives; Cessna Aircraft Company (Cessna) Model 172 Airplanes Modified by...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-12-15

    ... Aircraft Engines Service GmbH, Platanenstra e 14, D- 09350 Lichtenstein, Deutschland; telephone: +49 (37204... could lead to a loss of engine power. Relevant Service Information We reviewed Thielert Aircraft Engines...) Joint Aircraft System Component (JASC)/Air Transport Association (ATA) of America Code 72:...

  11. 76 FR 68636 - Airworthiness Directives; Thielert Aircraft Engines GmbH (TAE) Reciprocating Engines

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-11-07

    ... Thielert Aircraft Engines GmbH (TAE) Models TAE 125-01 and TAE 125- 02-99 reciprocating engines. That AD... Register approved the incorporation by reference of Thielert Aircraft Engines GmbH Service Bulletin (SB) No..., 2010), and adding the following new AD: 2011-23-01 Thielert Aircraft Engines GmbH: Amendment...

  12. 76 FR 22298 - Airworthiness Directives; Cessna Aircraft Company (Cessna) Model 172 Airplanes Modified by...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-04-21

    .... ADDRESSES: For service information identified in this AD, contact Thielert Aircraft Engines Service GmbH... Bosch, Thielert Aircraft Engines GmbH, when referring to the airplane maintenance manual (AMM) and... Aircraft installing a backup battery system effective date of this AD) or Engines GmbH Service Bulletin...

  13. 75 FR 81417 - Airworthiness Directives; Piper Aircraft, Inc. Model PA-28-161 Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-12-28

    ... equipped with Thielert Aircraft Engine GmbH (TAE) Engine Model TAE-125-01 installed per Supplemental Type..., 2011. ADDRESSES: For service information identified in this AD, contact Thielert Aircraft Engines... Thielert Aircraft Engine GmbH (TAE) Engine Model TAE-125-01 installed per Supplemental Type...

  14. Structural health management for aging aircraft

    NASA Astrophysics Data System (ADS)

    Ikegami, Roy; Haugse, Eric D.

    2001-06-01

    An effective structural health management (SHM) system can be a useful tool for making aircraft fleet management decisions ranging from individual aircraft maintenance scheduling and usage restrictions to fleet rotation strategies. This paper discusses the end-user requirements for the elements and architecture of an effective SHM system for application to both military and commercial aging aircraft fleets. The elements discussed include the sensor systems for monitoring and characterizing the health of the structure, data processing methods for interpreting sensor data and converting it into useable information, and automated methods for erroneous data detection, data archiving and information dissemination. Current and past SHM technology development/maturation efforts in these areas at the Boeing Company will be described. An evolutionary technology development strategy is developed in which the technologies needed will be matured, integrated into a vehicle health management system, and benefits established without requiring extensive changes to the end-user's existing operation and maintenance infrastructure. Issues regarding the end-user customer acceptance of SHM systems are discussed and summarized.

  15. Commercial Aircraft Integrated Vehicle Health Management Study

    NASA Technical Reports Server (NTRS)

    Reveley, Mary S.; Briggs, Jeffrey L.; Evans, Joni K.; Jones, Sharon Monica; Kurtoglu, Tolga; Leone, Karen M.; Sandifer, Carl E.; Thomas, Megan A.

    2010-01-01

    Statistical data and literature from academia, industry, and other government agencies were reviewed and analyzed to establish requirements for fixture work in detection, diagnosis, prognosis, and mitigation for IVHM related hardware and software. Around 15 to 20 percent of commercial aircraft accidents between 1988 and 2003 involved inalftfnctions or failures of some aircraft system or component. Engine and landing gear failures/malfunctions dominate both accidents and incidents. The IVI vl Project research technologies were found to map to the Joint Planning and Development Office's National Research and Development Plan (RDP) as well as the Safety Working Group's National Aviation Safety Strategic. Plan (NASSP). Future directions in Aviation Technology as related to IVHlvl were identified by reviewing papers from three conferences across a five year time span. A total of twenty-one trend groups in propulsion, aeronautics and aircraft categories were compiled. Current and ftiture directions of IVHM related technologies were gathered and classified according to eight categories: measurement and inspection, sensors, sensor management, detection, component and subsystem monitoring, diagnosis, prognosis, and mitigation.

  16. 77 FR 38463 - Issuance of Special Airworthiness Certificates for Light-Sport Category Aircraft

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-06-28

    ... Operation of Light-Sport Aircraft, was published in the Federal Register (69 FR 44772). The rule established... Privacy Act Statement in the Federal Register published on April 11, 2000 (65 FR 19477-78) or you may...://www.gpoaccess.gov/fr/index.html . You can also get a copy by sending a request to the Federal...

  17. 75 FR 22517 - Airworthiness Directives; British Aerospace Regional Aircraft Model Jetstream Series 3101 and...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-04-29

    ..., 2010 (75 FR 7405). That NPRM proposed to correct an unsafe condition for the specified products. The... Order 12866; (2) Is not a ``significant rule'' under DOT Regulatory Policies and Procedures (44 FR 11034... Aerospace Regional Aircraft Model Jetstream Series 3101 and Jetstream Model 3201 Airplanes AGENCY:...

  18. 77 FR 14316 - Airworthiness Directives; Piper Aircraft, Inc. (Type Certificate Previously Held by The New Piper...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-03-09

    ... proposed AD. ] Discussion On May 27, 1980, AD 80-11-06, amendment 39-3776 (45 FR 35309), was published in... issued AD 80-11-06 (45 FR 35309, May 27, 1980), we have become aware that the aircraft data plate on some... applicability. The requirements in AD 80-11-06 (45 FR 35309, May 27, 1980), match those in Piper...

  19. 77 FR 59873 - Airworthiness Directives; Cessna Aircraft Company Airplanes; Initial Regulatory Flexibility Analysis

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-10-01

    ... FR 32103). That NPRM proposed to require you to install a placard that prohibits flight into known... issuance of the NPRM (76 FR 32105), June 3, 2011, as the FAA initially determined that the cost of the... Directives; Cessna Aircraft Company Airplanes; Initial Regulatory Flexibility Analysis AGENCY:...

  20. 76 FR 18033 - Airworthiness Directives; Piper Aircraft, Inc. (Type Certificate Previously Held by The New Piper...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-04-01

    ... R1, Amendment 39-11747 (65 FR 33745, May 25, 2000). That AD applies to certain Piper Aircraft, Inc... in the Federal Register on December 30, 2010 (75 FR 82329). That NPRM proposed to continue to require... 12866, (2) Is not a ``significant rule'' under DOT Regulatory Policies and Procedures (44 FR...

  1. 75 FR 66655 - Airworthiness Directives; PILATUS Aircraft Ltd. Model PC-7 Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-10-29

    ... occurrence when an aircraft had a partial in-flight separation of the aileron outboard bearing support. The.... Such a condition, if left uncorrected, could lead to in-flight separation of the aileron outboard... Register on August 26, 2010 (75 FR 52482). That NPRM proposed to correct an unsafe condition for...

  2. 76 FR 14349 - Airworthiness Directives; British Aerospace Regional Aircraft Model HP.137 Jetstream Mk.1...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-03-16

    ... issued British Aerospace Jetstream Series 3100 & 3200 Service Bulletin 32-JA090240, Revision 1, dated... British Aerospace Regional Aircraft Model HP.137 Jetstream Mk.1, Jetstream Series 200, Jetstream Series...) of British Aerospace Jetstream Series 3100 & 3200 Service Bulletin 32-JA090240, Revision 1,...

  3. 75 FR 17879 - Airworthiness Directives; The Cessna Aircraft Company Model 750 Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-04-08

    ...-14817 (71 FR 65047, November 7, 2006), for all The Cessna Aircraft Company Model 750 airplanes. That AD...'' under the DOT Regulatory Policies and Procedures (44 FR 11034, February 26, 1979); and 3. Will not have... Amendment 39-14817 (71 FR 65047, November 7, 2006) and adding the following new AD: The Cessna...

  4. 76 FR 72128 - Airworthiness Directives; Thielert Aircraft Engines GmbH (TAE) Reciprocating Engines

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-11-22

    ...-09, Amendment 39-16314 (75 FR 32253, June 8, 2010), for TAE Models TAE 125-01 and TAE 125-02-99...-flight shutdown, possibly resulting in reduced control of the aircraft. Actions Since Existing AD (75 FR... requirements of AD 2010- 11-09 (75 FR 32253, June 8, 2010), except the repetitive replacement interval...

  5. 77 FR 65503 - Airworthiness Directives; Diamond Aircraft Industries GmbH Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-10-29

    ... ``significant rule'' under the DOT Regulatory Policies and Procedures (44 FR 11034, February 26, 1979), (3) Will... Industries GmbH Airplanes AGENCY: Federal Aviation Administration (FAA), Department of Transportation (DOT... (AD) for Diamond Aircraft Industries GmbH Models DA 42, DA 42 M-NG, and DA 42 NG airplanes....

  6. 78 FR 26241 - Airworthiness Directives; Diamond Aircraft Industries GmbH Powered Gliders

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-05-06

    ...-08, amendment 39-17365 (78 FR 14160, March 5, 2013), for all Diamond Aircraft Industries GmbH Models... certain publications listed in this AD as of April 9, 2013 (78 FR 14160, March 5, 2013). We must receive... products. Actions Since AD Was Issued Since we issued AD 2013-04-08 (78 FR 14160, March 5, 2013), it...

  7. 14 CFR Appendix A to Part 27 - Instructions for Continued Airworthiness

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... AIRCRAFT AIRWORTHINESS STANDARDS: NORMAL CATEGORY ROTORCRAFT Pt. 27, App. A Appendix A to Part 27... Continued Airworthiness for each rotorcraft must include the Instructions for Continued Airworthiness for... rotorcraft. If Instructions for Continued Airworthiness are not supplied by the manufacturer of an...

  8. 14 CFR Appendix A to Part 27 - Instructions for Continued Airworthiness

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... AIRCRAFT AIRWORTHINESS STANDARDS: NORMAL CATEGORY ROTORCRAFT Pt. 27, App. A Appendix A to Part 27... Continued Airworthiness for each rotorcraft must include the Instructions for Continued Airworthiness for... rotorcraft. If Instructions for Continued Airworthiness are not supplied by the manufacturer of an...

  9. 14 CFR Appendix A to Part 35 - Instructions for Continued Airworthiness

    Code of Federal Regulations, 2013 CFR

    2013-01-01

    ... AIRCRAFT AIRWORTHINESS STANDARDS: PROPELLERS Pt. 35, App. A Appendix A to Part 35—Instructions for... Airworthiness for each propeller must include the Instructions for Continued Airworthiness for all propeller parts. If Instructions for Continued Airworthiness are not supplied by the propeller part...

  10. 14 CFR Appendix A to Part 35 - Instructions for Continued Airworthiness

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ... AIRCRAFT AIRWORTHINESS STANDARDS: PROPELLERS Pt. 35, App. A Appendix A to Part 35—Instructions for... Airworthiness for each propeller must include the Instructions for Continued Airworthiness for all propeller parts. If Instructions for Continued Airworthiness are not supplied by the propeller part...

  11. 14 CFR Appendix A to Part 35 - Instructions for Continued Airworthiness

    Code of Federal Regulations, 2012 CFR

    2012-01-01

    ... AIRCRAFT AIRWORTHINESS STANDARDS: PROPELLERS Pt. 35, App. A Appendix A to Part 35—Instructions for... Airworthiness for each propeller must include the Instructions for Continued Airworthiness for all propeller parts. If Instructions for Continued Airworthiness are not supplied by the propeller part...

  12. 14 CFR Appendix A to Part 35 - Instructions for Continued Airworthiness

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... AIRCRAFT AIRWORTHINESS STANDARDS: PROPELLERS Pt. 35, App. A Appendix A to Part 35—Instructions for... Airworthiness for each propeller must include the Instructions for Continued Airworthiness for all propeller parts. If Instructions for Continued Airworthiness are not supplied by the propeller part...

  13. 14 CFR Appendix A to Part 35 - Instructions for Continued Airworthiness

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... AIRCRAFT AIRWORTHINESS STANDARDS: PROPELLERS Pt. 35, App. A Appendix A to Part 35—Instructions for... Airworthiness for each propeller must include the Instructions for Continued Airworthiness for all propeller parts. If Instructions for Continued Airworthiness are not supplied by the propeller part...

  14. 14 CFR 39.3 - Definition of airworthiness directives.

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ... 14 Aeronautics and Space 1 2014-01-01 2014-01-01 false Definition of airworthiness directives. 39.3 Section 39.3 Aeronautics and Space FEDERAL AVIATION ADMINISTRATION, DEPARTMENT OF TRANSPORTATION AIRCRAFT AIRWORTHINESS DIRECTIVES § 39.3 Definition of airworthiness directives. FAA's...

  15. 76 FR 20894 - Airworthiness Directives; Univair Aircraft Corporation Models (ERCO) 415-C, 415-CD, 415-D, E, G...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-04-14

    .... Discussion We issued AD 52-02-02 (21 FR 9447, December 4, 1956) for Ercoupe Model 415 Series and Models E and...'' under the DOT Regulatory Policies and Procedures (44 FR 11034, February 26, 1979), (3) Will not affect... Sec. 39.13 by removing airworthiness directive (AD) 52-02-02, (21 FR 9447, December 4, 1956),...

  16. 76 FR 27865 - Airworthiness Directives; Cessna Aircraft Company Models 150, 152, 170, 172, 175, 177, 180, 182...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-05-13

    ... 14 CFR part 39 to supersede airworthiness directive (AD) 87-20-03 R2, Amendment 39-6669 (55 FR 36264... Register on November 8, 2010 (75 FR 68543). That NPRM proposed to retain all of the actions from the... Procedures (44 FR 11034, February 26, 1979), (3) Will not affect intrastate aviation in Alaska, and (4)...

  17. 75 FR 26888 - Airworthiness Directives; Sikorsky Aircraft Corporation (Sikorsky) Model S-70A and S-70C Helicopters

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-05-13

    ... proposal would require an ultrasonic test (UT) inspection of the tail gearbox output bevel gear (gear) for a crack. If you find a crack, replacing the gear with an airworthy gear before further flight would...-037-AD. Applicability Model S-70A and S-70C helicopters, tail gearbox output bevel gear (gear),...

  18. 75 FR 70101 - Airworthiness Directives; Sikorsky Aircraft Corporation (Sikorsky) Model S-70A and S-70C Helicopters

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-11-17

    ... output bevel gear (gear) for a crack. If you find a crack, replacing the gear with an airworthy gear is required before further flight. This AD is prompted by three gear cracking incidents, one of which resulted.... Applicability: Model S-70A and S-70C helicopters with a tail gearbox output bevel gear (gear), part number...

  19. 76 FR 18376 - Airworthiness Directives; CPAC, Inc. (Type Certificate Formerly Held by Commander Aircraft...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-04-04

    ... elevator outboard aft end rib, part number (P/N) 44330, and elevator skin, P/N 44323. (5) Remove the...., Washington, DC 20590, between 9 a.m. and 5 p.m., Monday through Friday, except Federal holidays. Examining... person at the Docket Management Facility between 9 a.m. and 5 p.m., Monday through Friday, except...

  20. 14 CFR 43.16 - Airworthiness limitations.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... 14 Aeronautics and Space 1 2010-01-01 2010-01-01 false Airworthiness limitations. 43.16 Section 43.16 Aeronautics and Space FEDERAL AVIATION ADMINISTRATION, DEPARTMENT OF TRANSPORTATION AIRCRAFT MAINTENANCE, PREVENTIVE MAINTENANCE, REBUILDING, AND ALTERATION § 43.16 Airworthiness limitations. Each...

  1. Power management and distribution for the More Electric Aircraft

    SciTech Connect

    Weimer, J.A.

    1995-12-31

    The Air Force More Electric Aircraft (MEA) initiative endorses the notion of driving aircraft subsystems electrically which have traditionally been powered by hydraulic, mechanical, and pneumatic means. Therefore subsystems like hydraulically driven flight control actuators, engine gearbox driven fuel pumps, and bleed air driven environmental control system compressors would be powered electrically via an electrical motor. Studies on two different military fighter aircraft have shown that the MEA concept will provide a significant payoff in aircraft performance and cost. This paper will address many of the technical issues and concerns in developing a fault tolerant, highly reliable electrical power system for the MEA. Additionally, the paper will review the selection of a predominantly 270 Volt DC power system for the MEA and the need to develop additional MEA electrical power system technologies and standards. Many of these issues, concerns and needs are being addressed under the Power Management and Distribution System for More Electric Aircraft (MADMEL) program.

  2. A Risk Management Architecture for Emergency Integrated Aircraft Control

    NASA Technical Reports Server (NTRS)

    McGlynn, Gregory E.; Litt, Jonathan S.; Lemon, Kimberly A.; Csank, Jeffrey T.

    2011-01-01

    Enhanced engine operation--operation that is beyond normal limits--has the potential to improve the adaptability and safety of aircraft in emergency situations. Intelligent use of enhanced engine operation to improve the handling qualities of the aircraft requires sophisticated risk estimation techniques and a risk management system that spans the flight and propulsion controllers. In this paper, an architecture that weighs the risks of the emergency and of possible engine performance enhancements to reduce overall risk to the aircraft is described. Two examples of emergency situations are presented to demonstrate the interaction between the flight and propulsion controllers to facilitate the enhanced operation.

  3. 41 CFR 102-33.225 - How must we manage aircraft parts?

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 41 Public Contracts and Property Management 3 2010-07-01 2010-07-01 false How must we manage aircraft parts? 102-33.225 Section 102-33.225 Public Contracts and Property Management Federal Property... must we manage aircraft parts? You must manage your aircraft parts by maintaining proper...

  4. 75 FR 39803 - Airworthiness Directives; Thielert Aircraft Engines GmbH Model TAE 125-01 Reciprocating Engines

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-07-13

    ... Aircraft Engines GmbH: Amendment 39-16366. Docket No. FAA-2010-0308; Directorate Identifier 2010-NE-17-AD...) None. Applicability (c) This AD applies to Thielert Aircraft Engines GmbH model TAE 125-01...) Use the Measures section of Thielert Aircraft Engines GmbH Service Bulletin No. TM TAE...

  5. 75 FR 7947 - Airworthiness Directives; Thielert Aircraft Engines GmbH (TAE) Model TAE 125-01 Reciprocating...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-02-23

    ... aircraft equipped with a TAE 125-01 engine. This was found to be mainly the result of a blockage of the... specified products. The MCAI states: An in-flight engine shutdown incident was reported on an aircraft... the following new AD: 2010-04-06 Thielert Aircraft Engines GmbH: Amendment 39-16199. Docket No....

  6. 14 CFR 21.190 - Issue of a special airworthiness certificate for a light-sport category aircraft.

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ... flight training supplement. (2) The aircraft must not have been previously issued a standard, primary... standard; (3) State that the aircraft conforms to the manufacturer's design data, using the manufacturer's... procedures. (iii) The aircraft's flight training supplement. (5) State that the manufacturer will monitor...

  7. 14 CFR 91.327 - Aircraft having a special airworthiness certificate in the light-sport category: Operating...

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... certificated repairman with a light-sport aircraft maintenance rating, an appropriately rated mechanic, or an... (light-sport aircraft) with a maintenance rating, an appropriately rated mechanic, or an appropriately... certificated repairman with a light-sport aircraft maintenance rating, an appropriately rated mechanic, or...

  8. Life management of aging Air Force aircraft: NDE perspective

    NASA Astrophysics Data System (ADS)

    Cordell, Tobey M.

    1995-07-01

    Continuing trends toward reduced procurement of new aircraft is forcing the United States Air Force (USAF) to extend the operational life of its current aircraft. In the past, the USAF operator was able to replace fleet aircraft on a fairly regular basis. This process has been drastically altered by the significant reductions in the Defense Department budget as a result of the end of the Cold War. The requirement to extend the fleet's operational life is placing greater importance on the ability to find, characterize, and ameliorate the deleterious effects of operation and maintenance. In addition, many aircraft are being asked to operate with changed mission requirements that were not envisioned when they were originally procured. The life management of the aging fleet is interwoven with the ability to utilize nondestructive evaluation (NDE) to identify and characterize changes in the materials and structures throughout their lifetime.

  9. Wind Information Uplink to Aircraft Performing Interval Management Operations

    NASA Technical Reports Server (NTRS)

    Ahmad, Nashat; Barmore, Bryan; Swieringa, Kurt

    2015-01-01

    The accuracy of the wind information used to generate trajectories for aircraft performing Interval Management (IM) operations is critical to the success of an IM operation. There are two main forms of uncertainty in the wind information used by the Flight Deck Interval Management (FIM) equipment. The first is the accuracy of the forecast modeling done by the weather provider. The second is that only a small subset of the forecast data can be uplinked to the aircraft for use by the FIM equipment, resulting in loss of additional information. This study focuses on what subset of forecast data, such as the number and location of the points where the wind is sampled should be made available to uplink to the aircraft.

  10. 14 CFR 91.205 - Powered civil aircraft with standard category U.S. airworthiness certificates: Instrument and...

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... Aeronautics and Space FEDERAL AVIATION ADMINISTRATION, DEPARTMENT OF TRANSPORTATION (CONTINUED) AIR TRAFFIC... paragraph (c) of this section; (2) Night vision goggles; (3) Interior and exterior aircraft lighting...

  11. 14 CFR 39.11 - What actions do airworthiness directives require?

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ... 14 Aeronautics and Space 1 2014-01-01 2014-01-01 false What actions do airworthiness directives require? 39.11 Section 39.11 Aeronautics and Space FEDERAL AVIATION ADMINISTRATION, DEPARTMENT OF TRANSPORTATION AIRCRAFT AIRWORTHINESS DIRECTIVES § 39.11 What actions do airworthiness directives...

  12. 14 CFR 39.5 - When does FAA issue airworthiness directives?

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ... 14 Aeronautics and Space 1 2014-01-01 2014-01-01 false When does FAA issue airworthiness directives? 39.5 Section 39.5 Aeronautics and Space FEDERAL AVIATION ADMINISTRATION, DEPARTMENT OF TRANSPORTATION AIRCRAFT AIRWORTHINESS DIRECTIVES § 39.5 When does FAA issue airworthiness directives? FAA...

  13. 76 FR 32103 - Airworthiness Directives; Cessna Aircraft Company 310, 320, 340, 401, 402, 411, 414, and 421...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-06-03

    ... ``significant rule'' under the DOT Regulatory Policies and Procedures (44 FR 11034, February 26, 1979), (3) Will... certificated aircraft mechanic must fabricate the additional placard and install both of these placards. The... properly certificated aircraft mechanic. Costs of Compliance We estimate that this proposed AD affects...

  14. Wind Information Uplink to Aircraft Performing Interval Management Operations

    NASA Technical Reports Server (NTRS)

    Ahmad, Nashat N.; Barmore, Bryan E.; Swieringa, Kurt A.

    2016-01-01

    Interval Management (IM) is an ADS-B-enabled suite of applications that use ground and flight deck capabilities and procedures designed to support the relative spacing of aircraft (Barmore et al., 2004, Murdoch et al. 2009, Barmore 2009, Swieringa et al. 2011; Weitz et al. 2012). Relative spacing refers to managing the position of one aircraft to a time or distance relative to another aircraft, as opposed to a static reference point such as a point over the ground or clock time. This results in improved inter-aircraft spacing precision and is expected to allow aircraft to be spaced closer to the applicable separation standard than current operations. Consequently, if the reduced spacing is used in scheduling, IM can reduce the time interval between the first and last aircraft in an overall arrival flow, resulting in increased throughput. Because IM relies on speed changes to achieve precise spacing, it can reduce costly, low-altitude, vectoring, which increases both efficiency and throughput in capacity-constrained airspace without negatively impacting controller workload and task complexity. This is expected to increase overall system efficiency. The Flight Deck Interval Management (FIM) equipment provides speeds to the flight crew that will deliver them to the achieve-by point at the controller-specified time, i.e., assigned spacing goal, after the target aircraft crosses the achieve-by point (Figure 1.1). Since the IM and target aircraft may not be on the same arrival procedure, the FIM equipment predicts the estimated times of arrival (ETA) for both the IM and target aircraft to the achieve-by point. This involves generating an approximate four-dimensional trajectory for each aircraft. The accuracy of the wind data used to generate those trajectories is critical to the success of the IM operation. There are two main forms of uncertainty in the wind information used by the FIM equipment. The first is the accuracy of the forecast modeling done by the weather

  15. Aircraft

    DOEpatents

    Hibbs, B.D.; Lissaman, P.B.S.; Morgan, W.R.; Radkey, R.L.

    1998-09-22

    This disclosure provides a solar rechargeable aircraft that is inexpensive to produce, is steerable, and can remain airborne almost indefinitely. The preferred aircraft is a span-loaded flying wing, having no fuselage or rudder. Travelling at relatively slow speeds, and having a two-hundred foot wingspan that mounts photovoltaic cells on most all of the wing`s top surface, the aircraft uses only differential thrust of its eight propellers to turn. Each of five sections of the wing has one or more engines and photovoltaic arrays, and produces its own lift independent of the other sections, to avoid loading them. Five two-sided photovoltaic arrays, in all, are mounted on the wing, and receive photovoltaic energy both incident on top of the wing, and which is incident also from below, through a bottom, transparent surface. The aircraft is capable of a top speed of about ninety miles per hour, which enables the aircraft to attain and can continuously maintain altitudes of up to sixty-five thousand feet. Regenerative fuel cells in the wing store excess electricity for use at night, such that the aircraft can sustain its elevation indefinitely. A main spar of the wing doubles as a pressure vessel that houses hydrogen and oxygen gases for use in the regenerative fuel cell. The aircraft has a wide variety of applications, which include weather monitoring and atmospheric testing, communications, surveillance, and other applications as well. 31 figs.

  16. Aircraft

    DOEpatents

    Hibbs, Bart D.; Lissaman, Peter B. S.; Morgan, Walter R.; Radkey, Robert L.

    1998-01-01

    This disclosure provides a solar rechargeable aircraft that is inexpensive to produce, is steerable, and can remain airborne almost indefinitely. The preferred aircraft is a span-loaded flying wing, having no fuselage or rudder. Travelling at relatively slow speeds, and having a two-hundred foot wingspan that mounts photovoltaic cells on most all of the wing's top surface, the aircraft uses only differential thrust of its eight propellers to turn. Each of five sections of the wing has one or more engines and photovoltaic arrays, and produces its own lift independent of the other sections, to avoid loading them. Five two-sided photovoltaic arrays, in all, are mounted on the wing, and receive photovoltaic energy both incident on top of the wing, and which is incident also from below, through a bottom, transparent surface. The aircraft is capable of a top speed of about ninety miles per hour, which enables the aircraft to attain and can continuously maintain altitudes of up to sixty-five thousand feet. Regenerative fuel cells in the wing store excess electricity for use at night, such that the aircraft can sustain its elevation indefinitely. A main spar of the wing doubles as a pressure vessel that houses hydrogen and oxygen gasses for use in the regenerative fuel cell. The aircraft has a wide variety of applications, which include weather monitoring and atmospheric testing, communications, surveillance, and other applications as well.

  17. 41 CFR 301-10.263 - What travel authorization documents must I present to the aircraft management office that...

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... authorization documents must I present to the aircraft management office that operates the Government aircraft... Government Vehicle Travel on Government Aircraft § 301-10.263 What travel authorization documents must I present to the aircraft management office that operates the Government aircraft? You must present to...

  18. 41 CFR 301-10.263 - What travel authorization documents must I present to the aircraft management office that...

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... authorization documents must I present to the aircraft management office that operates the Government aircraft... Government Vehicle Travel on Government Aircraft § 301-10.263 What travel authorization documents must I present to the aircraft management office that operates the Government aircraft? You must present to...

  19. 41 CFR 301-10.263 - What travel authorization documents must I present to the aircraft management office that...

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... authorization documents must I present to the aircraft management office that operates the Government aircraft... Government Vehicle Travel on Government Aircraft § 301-10.263 What travel authorization documents must I present to the aircraft management office that operates the Government aircraft? You must present to...

  20. 41 CFR 301-10.263 - What travel authorization documents must I present to the aircraft management office that...

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... authorization documents must I present to the aircraft management office that operates the Government aircraft... Government Vehicle Travel on Government Aircraft § 301-10.263 What travel authorization documents must I present to the aircraft management office that operates the Government aircraft? You must present to...

  1. 14 CFR 21.187 - Issue of multiple airworthiness certification.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... 14 Aeronautics and Space 1 2011-01-01 2011-01-01 false Issue of multiple airworthiness certification. 21.187 Section 21.187 Aeronautics and Space FEDERAL AVIATION ADMINISTRATION, DEPARTMENT OF... mechanic with an appropriate airframe rating, to determine airworthiness each time the aircraft...

  2. 14 CFR 21.187 - Issue of multiple airworthiness certification.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... 14 Aeronautics and Space 1 2010-01-01 2010-01-01 false Issue of multiple airworthiness certification. 21.187 Section 21.187 Aeronautics and Space FEDERAL AVIATION ADMINISTRATION, DEPARTMENT OF... mechanic with an appropriate airframe rating, to determine airworthiness each time the aircraft...

  3. 14 CFR 36.3 - Compatibility with airworthiness requirements.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... 14 Aeronautics and Space 1 2011-01-01 2011-01-01 false Compatibility with airworthiness requirements. 36.3 Section 36.3 Aeronautics and Space FEDERAL AVIATION ADMINISTRATION, DEPARTMENT OF... Compatibility with airworthiness requirements. It must be shown that the aircraft meets the...

  4. 14 CFR 36.3 - Compatibility with airworthiness requirements.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... 14 Aeronautics and Space 1 2010-01-01 2010-01-01 false Compatibility with airworthiness requirements. 36.3 Section 36.3 Aeronautics and Space FEDERAL AVIATION ADMINISTRATION, DEPARTMENT OF... Compatibility with airworthiness requirements. It must be shown that the aircraft meets the...

  5. 14 CFR 36.3 - Compatibility with airworthiness requirements.

    Code of Federal Regulations, 2013 CFR

    2013-01-01

    ... 14 Aeronautics and Space 1 2013-01-01 2013-01-01 false Compatibility with airworthiness requirements. 36.3 Section 36.3 Aeronautics and Space FEDERAL AVIATION ADMINISTRATION, DEPARTMENT OF... Compatibility with airworthiness requirements. It must be shown that the aircraft meets the...

  6. 14 CFR 36.3 - Compatibility with airworthiness requirements.

    Code of Federal Regulations, 2012 CFR

    2012-01-01

    ... 14 Aeronautics and Space 1 2012-01-01 2012-01-01 false Compatibility with airworthiness requirements. 36.3 Section 36.3 Aeronautics and Space FEDERAL AVIATION ADMINISTRATION, DEPARTMENT OF... Compatibility with airworthiness requirements. It must be shown that the aircraft meets the...

  7. 14 CFR 36.3 - Compatibility with airworthiness requirements.

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ... 14 Aeronautics and Space 1 2014-01-01 2014-01-01 false Compatibility with airworthiness requirements. 36.3 Section 36.3 Aeronautics and Space FEDERAL AVIATION ADMINISTRATION, DEPARTMENT OF... Compatibility with airworthiness requirements. It must be shown that the aircraft meets the...

  8. Autonomous Aircraft Operations using RTCA Guidelines for Airborne Conflict Management

    NASA Technical Reports Server (NTRS)

    Krishnamurthy, Karthik; Wing, David J.; Barmore, Bryan E.; Barhydt, Richard; Palmer, Michael T.; Johnson, Edward J.; Ballin, Mark G.; Eischeid, Todd M.

    2003-01-01

    A human-in-the-loop experiment was performed at the NASA Langley Research Center to study the feasibility of DAG-TM autonomous aircraft operations in highly constrained airspace. The airspace was constrained by a pair of special-use airspace (SUA) regions on either side of the pilot's planned route. Traffic flow management (TFM) constraints were imposed as a required time of arrival and crossing altitude at an en route fix. Key guidelines from the RTCA Airborne Conflict Management (ACM) concept were applied to autonomous aircraft operations for this experiment. These concepts included the RTCA ACM definitions of distinct conflict detection and collision avoidance zones, and the use of a graded system of conflict alerts for the flight crew. Three studies were conducted in the course of the experiment. The first study investigated the effect of hazard proximity upon pilot ability to meet constraints and solve conflict situations. The second study investigated pilot use of the airborne tools when faced with an unexpected loss of separation (LOS). The third study explored pilot interactions in an over-constrained conflict situation, with and without priority rules dictating who should move first. Detailed results from these studies were presented at the 5th USA/Europe Air Traffic Management R&D Seminar (ATM2003). This overview paper focuses on the integration of the RTCA ACM concept into autonomous aircraft operations in highly constrained situations, and provides an overview of the results presented at the ATM2003 seminar. These results, together with previously reported studies, continue to support the feasibility of autonomous aircraft operations.

  9. 75 FR 75868 - Airworthiness Directives; Diamond Aircraft Industries GmbH Models DA 40 and DA 40F Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-12-07

    ... Register on August 25, 2010 (75 FR 52292). That NPRM proposed to require a retrofit of the rear passenger... 12866, (2) Is not a ``significant rule'' under DOT Regulatory Policies and Procedures (44 FR 11034... Aircraft Industries GmbH Models DA 40 and DA 40F Airplanes AGENCY: Federal Aviation Administration,...

  10. Airworthiness verification of an airborne telescope in practice

    NASA Astrophysics Data System (ADS)

    Dreger, Hartmut; Bremers, Eckhard; Kuehn, Juergen; Eisentraeger, Peter

    2003-02-01

    The SOFIA Telescope is part of the outer hull of the pressurized passenger cabin of the SOFIA aircraft, in which the aircraft crew, the astronomers and their guests are located during flight. Therefore the telescope - including the science instrument - is an airworthiness relevant component of the observatory and has to fulfill airworthiness standards ac-cording the Federal Aviation Authority. The airworthiness issues were main drivers in the process of design, manufacturing, quality control, testing and documentation. The paper describes the experience gotten during this troublesome, exciting and costly job.

  11. Piloting considerations for terminal area operations of civil tiltwing and tiltrotor aircraft

    NASA Technical Reports Server (NTRS)

    Hindson, William S.; Hardy, Gordon H.; Tucker, George E.; Decker, William A.

    1993-01-01

    The existing body of research to investigate airworthiness, performance, handling, and operational requirements for STOL and V/STOL aircraft was reviewed for its applicability to the tiltrotor and tiltwing design concepts. The objective of this study was to help determine the needs for developing civil certification criteria for these aircraft concepts. Piloting tasks that were considered included configuration and thrust vector management, glidepath control, deceleration to hover, and engine failure procedures. Flight control and cockpit display systems that have been found necessary to exploit the low-speed operating characteristics of these aircraft are described, and beneficial future developments are proposed.

  12. 76 FR 12627 - Airworthiness Directives; Diamond Aircraft Industries GmbH Models DA 42, DA 42 NG, and DA 42 M-NG...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-03-08

    ... the MCAI, on November 23, 2010, we issued AD 2010-25-01, Amendment 39-16534 (75 FR 75868, December 7... Order 12866; 2. Is not a ``significant rule'' under the DOT Regulatory Policies and Procedures (44 FR... Federal Aviation Administration 14 CFR Part 39 RIN 2120-AA64 Airworthiness Directives; Diamond...

  13. Status report on the land processes aircraft science management operations working group

    NASA Technical Reports Server (NTRS)

    Lawless, James G.; Mann, Lisa J.

    1991-01-01

    Since its inception three years ago, the Land Processes Aircraft Science Management Operations Working Group (MOWG) provided recommendations on the optimal use of the Agency's aircraft in support of the Land Processes Science Program. Recommendations covered topics such as aircraft and sensor usage, development of long-range plans, Multisensor Airborne Campaigns (MAC), program balance, aircraft sensor databases, new technology and sensor development, and increased University scientist participation in the program. Impacts of these recommendations improved the efficiency of various procedures including the flight request process, tracking of flight hours, and aircraft usage. The group also created a bibliography focused on publications produced by Land Processes scientists from the use of the aircraft program, surveyed NASA funded PI's on their participation in the aircraft program, and developed a planning template for multi-sensor airborne campaigns. Benefits from these activities are summarized.

  14. 14 CFR 21.182 - Aircraft identification.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... 14 Aeronautics and Space 1 2010-01-01 2010-01-01 false Aircraft identification. 21.182 Section 21.182 Aeronautics and Space FEDERAL AVIATION ADMINISTRATION, DEPARTMENT OF TRANSPORTATION AIRCRAFT CERTIFICATION PROCEDURES FOR PRODUCTS AND PARTS Airworthiness Certificates § 21.182 Aircraft identification....

  15. 14 CFR 21.182 - Aircraft identification.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... 14 Aeronautics and Space 1 2011-01-01 2011-01-01 false Aircraft identification. 21.182 Section 21.182 Aeronautics and Space FEDERAL AVIATION ADMINISTRATION, DEPARTMENT OF TRANSPORTATION AIRCRAFT CERTIFICATION PROCEDURES FOR PRODUCTS AND PARTS Airworthiness Certificates § 21.182 Aircraft identification....

  16. 14 CFR 21.182 - Aircraft identification.

    Code of Federal Regulations, 2012 CFR

    2012-01-01

    ... 14 Aeronautics and Space 1 2012-01-01 2012-01-01 false Aircraft identification. 21.182 Section 21.182 Aeronautics and Space FEDERAL AVIATION ADMINISTRATION, DEPARTMENT OF TRANSPORTATION AIRCRAFT CERTIFICATION PROCEDURES FOR PRODUCTS AND PARTS Airworthiness Certificates § 21.182 Aircraft identification....

  17. 14 CFR 21.182 - Aircraft identification.

    Code of Federal Regulations, 2013 CFR

    2013-01-01

    ... 14 Aeronautics and Space 1 2013-01-01 2013-01-01 false Aircraft identification. 21.182 Section 21.182 Aeronautics and Space FEDERAL AVIATION ADMINISTRATION, DEPARTMENT OF TRANSPORTATION AIRCRAFT CERTIFICATION PROCEDURES FOR PRODUCTS AND PARTS Airworthiness Certificates § 21.182 Aircraft identification....

  18. 14 CFR 21.182 - Aircraft identification.

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ... 14 Aeronautics and Space 1 2014-01-01 2014-01-01 false Aircraft identification. 21.182 Section 21.182 Aeronautics and Space FEDERAL AVIATION ADMINISTRATION, DEPARTMENT OF TRANSPORTATION AIRCRAFT CERTIFICATION PROCEDURES FOR PRODUCTS AND PARTS Airworthiness Certificates § 21.182 Aircraft identification....

  19. 14 CFR 36.13 - Acoustical change: Tiltrotor aircraft.

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ... 14 Aeronautics and Space 1 2014-01-01 2014-01-01 false Acoustical change: Tiltrotor aircraft. 36... AIRCRAFT NOISE STANDARDS: AIRCRAFT TYPE AND AIRWORTHINESS CERTIFICATION General § 36.13 Acoustical change: Tiltrotor aircraft. The following requirements apply to tiltrotors in any category for which an...

  20. 14 CFR 39.15 - Does an airworthiness directive apply if the product has been changed?

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ... 14 Aeronautics and Space 1 2014-01-01 2014-01-01 false Does an airworthiness directive apply if the product has been changed? 39.15 Section 39.15 Aeronautics and Space FEDERAL AVIATION ADMINISTRATION, DEPARTMENT OF TRANSPORTATION AIRCRAFT AIRWORTHINESS DIRECTIVES § 39.15 Does an...

  1. 76 FR 64285 - Airworthiness Directives; Thielert Aircraft Engines GmbH (TAE) Models TAE 125-02-99 and TAE 125...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-10-18

    .... Fax: (202) 493-2251. Contact Thielert Aircraft Engines GmbH, Platanenstrasse 14 D-09350, Lichtenstein... following new AD: Thielert Aircraft Engines GmbH: Docket No. FAA-2009-0948; Directorate Identifier 2009-NE... Thielert Aircraft Engines GmbH (TAE) models TAE 125-01 and TAE 125-02-99 reciprocating engines installed...

  2. 75 FR 12439 - Airworthiness Directives; Thielert Aircraft Engines GmbH (TAE) Models TAE 125-02-99 and TAE 125...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-03-16

    ... experience, Thielert Aircraft Engines GmbH has introduced a new rail pressure control valve part number (P/N... to prevent engine in-flight shutdown, possibly resulting in reduced control of the aircraft. DATES... experience, Thielert Aircraft Engines GmbH has introduced a new rail pressure control valve P/N...

  3. Data Fusion for Enhanced Aircraft Engine Prognostics and Health Management

    NASA Technical Reports Server (NTRS)

    Volponi, Al

    2005-01-01

    Aircraft gas-turbine engine data is available from a variety of sources, including on-board sensor measurements, maintenance histories, and component models. An ultimate goal of Propulsion Health Management (PHM) is to maximize the amount of meaningful information that can be extracted from disparate data sources to obtain comprehensive diagnostic and prognostic knowledge regarding the health of the engine. Data fusion is the integration of data or information from multiple sources for the achievement of improved accuracy and more specific inferences than can be obtained from the use of a single sensor alone. The basic tenet underlying the data/ information fusion concept is to leverage all available information to enhance diagnostic visibility, increase diagnostic reliability and reduce the number of diagnostic false alarms. This report describes a basic PHM data fusion architecture being developed in alignment with the NASA C-17 PHM Flight Test program. The challenge of how to maximize the meaningful information extracted from disparate data sources to obtain enhanced diagnostic and prognostic information regarding the health and condition of the engine is the primary goal of this endeavor. To address this challenge, NASA Glenn Research Center, NASA Dryden Flight Research Center, and Pratt & Whitney have formed a team with several small innovative technology companies to plan and conduct a research project in the area of data fusion, as it applies to PHM. Methodologies being developed and evaluated have been drawn from a wide range of areas including artificial intelligence, pattern recognition, statistical estimation, and fuzzy logic. This report will provide a chronology and summary of the work accomplished under this research contract.

  4. Aircraft/Air Traffic Management Functional Analysis Model. Version 2.0; User's Guide

    NASA Technical Reports Server (NTRS)

    Etheridge, Melvin; Plugge, Joana; Retina, Nusrat

    1998-01-01

    The Aircraft/Air Traffic Management Functional Analysis Model, Version 2.0 (FAM 2.0), is a discrete event simulation model designed to support analysis of alternative concepts in air traffic management and control. FAM 2.0 was developed by the Logistics Management Institute (LMI) a National Aeronautics and Space Administration (NASA) contract. This document provides a guide for using the model in analysis. Those interested in making enhancements or modification to the model should consult the companion document, Aircraft/Air Traffic Management Functional Analysis Model, Version 2.0 Technical Description.

  5. The Development of a Highly Reliable Power Management and Distribution System for Civil Transport Aircraft

    NASA Technical Reports Server (NTRS)

    Coleman, Anthony S.; Hansen, Irving G.

    1994-01-01

    NASA is pursuing a program in Advanced Subsonic Transport (AST) to develop the technology for a highly reliable Fly-By-Light/Power-By-WIre aircraft. One of the primary objectives of the program is to develop the technology base for confident application of integrated PBW components and systems to transport aircraft to improve operating reliability and efficiency. Technology will be developed so that the present hydraulic and pneumatic systems of the aircraft can be systematically eliminated and replaced by electrical systems. These motor driven actuators would move the aircraft wing surfaces as well as the rudder to provide steering controls for the pilot. Existing aircraft electrical systems are not flight critical and are prone to failure due to Electromagnetic Interference (EMI) (1), ground faults and component failures. In order to successfully implement electromechanical flight control actuation, a Power Management and Distribution (PMAD) System must be designed having a reliability of 1 failure in 10(exp +9) hours, EMI hardening and a fault tolerance architecture to ensure uninterrupted power to all aircraft flight critical systems. The focus of this paper is to analyze, define, and describe technically challenging areas associated with the development of a Power By Wire Aircraft and typical requirements to be established at the box level. The authors will attempt to propose areas of investigation, citing specific military standards and requirements that need to be revised to accommodate the 'More Electric Aircraft Systems'.

  6. Bayesian Software Health Management for Aircraft Guidance, Navigation, and Control

    NASA Technical Reports Server (NTRS)

    Schumann, Johann; Mbaya, Timmy; Menghoel, Ole

    2011-01-01

    Modern aircraft, both piloted fly-by-wire commercial aircraft as well as UAVs, more and more depend on highly complex safety critical software systems with many sensors and computer-controlled actuators. Despite careful design and V&V of the software, severe incidents have happened due to malfunctioning software. In this paper, we discuss the use of Bayesian networks (BNs) to monitor the health of the on-board software and sensor system, and to perform advanced on-board diagnostic reasoning. We will focus on the approach to develop reliable and robust health models for the combined software and sensor systems.

  7. 41 CFR 301-10.263 - What travel authorization documents must I present to the aircraft management office that...

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... documents must I present to the aircraft management office that operates the Government aircraft? 301-10.263... DUTY (TDY) TRAVEL ALLOWANCES ALLOWABLE TRAVEL EXPENSES 10-TRANSPORTATION EXPENSES Government Vehicle Travel on Government Aircraft § 301-10.263 What travel authorization documents must I present to...

  8. NASA-Langley Research Center's Aircraft Condition Analysis and Management System Implementation

    NASA Technical Reports Server (NTRS)

    Frye, Mark W.; Bailey, Roger M.; Jessup, Artie D.

    2004-01-01

    This document describes the hardware implementation design and architecture of Aeronautical Radio Incorporated (ARINC)'s Aircraft Condition Analysis and Management System (ACAMS), which was developed at NASA-Langley Research Center (LaRC) for use in its Airborne Research Integrated Experiments System (ARIES) Laboratory. This activity is part of NASA's Aviation Safety Program (AvSP), the Single Aircraft Accident Prevention (SAAP) project to develop safety-enabling technologies for aircraft and airborne systems. The fundamental intent of these technologies is to allow timely intervention or remediation to improve unsafe conditions before they become life threatening.

  9. Certification of a Modified Research Public Aircraft

    NASA Technical Reports Server (NTRS)

    Forsyth, T. J.; Reynolds, R. S.; Mountz, D. L.

    1997-01-01

    NASA Ames Research Center has several aircraft that have been modified to conduct aeronautical and scientific research. NASA's purpose is to provide research to improve safety of flight and support scientific research for Mission to Planet Earth. Our research and platform aircraft have been modified to fit the needs of the scientific and research programs. Because NASA's aircraft have been modified and operated as public aircraft, certification of airworthiness on many are not current. Some of our aircraft are military aircraft and were never certificated. This paper discusses the process of bringing a modified B200 King Air aircraft certification current to meet Federal Aviation Regulations.

  10. 75 FR 53846 - Airworthiness Directives; Thielert Aircraft Engines GmbH (TAE) Models TAE 125-01 and TAE 125-02...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-09-02

    .... SUPPLEMENTARY INFORMATION: On June 8, 2010 (75 FR 32253), we published a final rule AD, FR Doc. 2010-12540, in... To, Diamond Aircraft Industries Model DA 42 Airplanes; Correction AGENCY: Federal Aviation... TAE 125-02-99 reciprocating engines, installed in, but not limited to, Diamond Aircraft...

  11. 77 FR 57041 - Airworthiness Directives; Thielert Aircraft Engines GmbH Models TAE 125-01, TAE 125-02-99, and...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-09-17

    ... channel B manifold air pressure sensor hose permeability was not always recognized as a fault by the FADEC...-07-09, amendment 39-16646 (76 FR 17757, March 31, 2011), for Thielert Aircraft Engines GmbH models... that section, Congress charges the FAA with promoting safe flight of civil aircraft in air commerce...

  12. Optimization of the vertical flight profile on the flight management system for green aircraft

    NASA Astrophysics Data System (ADS)

    Felix Patron, Roberto Salvador

    To reduce aircraft's fuel consumption, a new method to calculate flight trajectories to be implemented in commercial Flight Management Systems has been developed. The aircraft's model was obtained from a flight performance database, which included experimental flight data. The optimized trajectories for three different commercial aircraft have been analyzed and developed in this thesis. To obtain the optimal flight trajectory that reduces the global flight cost, the vertical and the LNAV profiles have been studied and analyzed to find the aircraft's available speeds, possible flight altitudes and alternative horizontal trajectories that could reduce the global fuel consumption. A dynamic weather model has been implemented to improve the precision of the algorithm. This weather model calculates the speed and direction of wind, and the outside air temperature from a public weather database. To reduce the calculation time, different time-optimization algorithms have been implemented, such as the Golden Section search method, and different types of genetic algorithms. The optimization algorithm calculates the aircraft trajectory considering the departure and arrival airport coordinates, the aircraft parameters, the in-flight restrictions such as speeds, altitudes and WPs. The final output is given in terms of the flight time, fuel consumption and global flight cost of the complete flight. To validate the optimization algorithm results, the software FlightSIM RTM has been used. This software considers a complete aircraft aerodynamic model for its simulations, giving results that are accurate and very close to reality.

  13. A STOL airworthiness investigation using a simulation of a deflected slipstream transport. Volume 1: Summary of results and airworthiness implications

    NASA Technical Reports Server (NTRS)

    Stapleford, R. L.; Heffley, R. K.; Rumold, R. C.; Hynes, C. S.; Scott, B. C.

    1974-01-01

    A simulator study of short takeoff and landing (STOL) aircraft was conducted using a model of a deflected slipstream transport aircraft. The subjects considered are: (1) the approach, (2) flare and landing, (3) go-around, and (4) takeoff phases of flight. The results are summarized and possible implications with regard to airworthiness criteria are discussed. A data base is provided for future STOL airworthiness requirements and a preliminary indication of potential problem areas is developed. Comparison of the simulation results with various proposed STOL criteria indicates significant deficiencies in many of these criteria.

  14. 14 CFR 39.7 - What is the legal effect of failing to comply with an airworthiness directive?

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ... 14 Aeronautics and Space 1 2014-01-01 2014-01-01 false What is the legal effect of failing to comply with an airworthiness directive? 39.7 Section 39.7 Aeronautics and Space FEDERAL AVIATION ADMINISTRATION, DEPARTMENT OF TRANSPORTATION AIRCRAFT AIRWORTHINESS DIRECTIVES § 39.7 What is the legal effect...

  15. Integrated Software Health Management for Aircraft GN and C

    NASA Technical Reports Server (NTRS)

    Schumann, Johann; Mengshoel, Ole

    2011-01-01

    Modern aircraft rely heavily on dependable operation of many safety-critical software components. Despite careful design, verification and validation (V&V), on-board software can fail with disastrous consequences if it encounters problematic software/hardware interaction or must operate in an unexpected environment. We are using a Bayesian approach to monitor the software and its behavior during operation and provide up-to-date information about the health of the software and its components. The powerful reasoning mechanism provided by our model-based Bayesian approach makes reliable diagnosis of the root causes possible and minimizes the number of false alarms. Compilation of the Bayesian model into compact arithmetic circuits makes SWHM feasible even on platforms with limited CPU power. We show initial results of SWHM on a small simulator of an embedded aircraft software system, where software and sensor faults can be injected.

  16. Management of cosmic radiation exposure for aircraft crew in Japan.

    PubMed

    Yasuda, Hiroshi; Sato, Tatsuhiko; Yonehara, Hidenori; Kosako, Toshiso; Fujitaka, Kazunobu; Sasaki, Yasuhito

    2011-07-01

    The International Commission on Radiological Protection has recommended that cosmic radiation exposure of crew in commercial jet aircraft be considered as occupational exposure. In Japan, the Radiation Council of the government has established a guideline that requests domestic airlines to voluntarily keep the effective dose of cosmic radiation for aircraft crew below 5 mSv y(-1). The guideline also gives some advice and policies regarding the method of cosmic radiation dosimetry, the necessity of explanation and education about this issue, a way to view and record dose data, and the necessity of medical examination for crew. The National Institute of Radiological Sciences helps the airlines to follow the guideline, particularly for the determination of aviation route doses by numerical simulation. The calculation is performed using an original, easy-to-use program package called 'JISCARD EX' coupled with a PHITS-based analytical model and a GEANT4-based particle tracing code. The new radiation weighting factors recommended in 2007 are employed for effective dose determination. The annual individual doses of aircraft crew were estimated using this program.

  17. A Grounded Theory Study of Aircraft Maintenance Technician Decision-Making

    NASA Astrophysics Data System (ADS)

    Norcross, Robert

    Aircraft maintenance technician decision-making and actions have resulted in aircraft system errors causing aircraft incidents and accidents. Aircraft accident investigators and researchers examined the factors that influence aircraft maintenance technician errors and categorized the types of errors in an attempt to prevent similar occurrences. New aircraft technology introduced to improve aviation safety and efficiency incur failures that have no information contained in the aircraft maintenance manuals. According to the Federal Aviation Administration, aircraft maintenance technicians must use only approved aircraft maintenance documents to repair, modify, and service aircraft. This qualitative research used a grounded theory approach to explore the decision-making processes and actions taken by aircraft maintenance technicians when confronted with an aircraft problem not contained in the aircraft maintenance manuals. The target population for the research was Federal Aviation Administration licensed aircraft and power plant mechanics from across the United States. Nonprobability purposeful sampling was used to obtain aircraft maintenance technicians with the experience sought in the study problem. The sample population recruitment yielded 19 participants for eight focus group sessions to obtain opinions, perceptions, and experiences related to the study problem. All data collected was entered into the Atlas ti qualitative analysis software. The emergence of Aircraft Maintenance Technician decision-making themes regarding Aircraft Maintenance Manual content, Aircraft Maintenance Technician experience, and legal implications of not following Aircraft Maintenance Manuals surfaced. Conclusions from this study suggest Aircraft Maintenance Technician decision-making were influenced by experience, gaps in the Aircraft Maintenance Manuals, reliance on others, realizing the impact of decisions concerning aircraft airworthiness, management pressures, and legal concerns

  18. Learning the Task Management Space of an Aircraft Approach Model

    NASA Technical Reports Server (NTRS)

    Krall, Joseph; Menzies, Tim; Davies, Misty

    2014-01-01

    Validating models of airspace operations is a particular challenge. These models are often aimed at finding and exploring safety violations, and aim to be accurate representations of real-world behavior. However, the rules governing the behavior are quite complex: nonlinear physics, operational modes, human behavior, and stochastic environmental concerns all determine the responses of the system. In this paper, we present a study on aircraft runway approaches as modeled in Georgia Tech's Work Models that Compute (WMC) simulation. We use a new learner, Genetic-Active Learning for Search-Based Software Engineering (GALE) to discover the Pareto frontiers defined by cognitive structures. These cognitive structures organize the prioritization and assignment of tasks of each pilot during approaches. We discuss the benefits of our approach, and also discuss future work necessary to enable uncertainty quantification.

  19. 75 FR 7407 - Airworthiness Directives; Piper Aircraft, Inc. Models PA-32R-301T and PA-46-350P Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-02-19

    ... caused us to issue the following ADs: AD 2004-23-17, Amendment 39-13872 (69 FR 67809, November 22, 2004... FR 34941, June 1, 2000), applicable to Commander Aircraft Company Model 114TC airplanes. A newer and... ``significant rule'' under the DOT Regulatory Policies and Procedures (44 FR 11034, February 26, 1979); and...

  20. 75 FR 43397 - Airworthiness Directives; Piper Aircraft, Inc. Models PA-32R-301T and PA-46-350P Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-07-26

    ... in the Federal Register on June 23, 2010 (75 FR 35619), and applies to certain Piper Aircraft, Inc..., the FAA issued AD 2010-13-07, Amendment 39-16338 (75 FR 35619, June 23, 2010), which applies to... Accordingly, the publication of June 23, 2010 (75 FR 35619), of Amendment 39-16338; AD 2010-13-07, which...

  1. 76 FR 5467 - Airworthiness Directives; Pilatus Aircraft Ltd. Models PC-6, PC-6-H1, PC-6-H2, PC-6/350, PC-6/350...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-02-01

    ...; Internet: http://www.pilatus-aircraft.com . You may review copies of the referenced service information at... specified products. That NPRM was published in the Federal Register on October 7, 2010 (75 FR 62002), and proposed to supersede AD 2005-17-01, Amendment 39-14221 (70 FR 47716; August 15, 2005). That NPRM...

  2. Aircraft/Air Traffic Management Functional Analysis Model: Technical Description. 2.0

    NASA Technical Reports Server (NTRS)

    Etheridge, Melvin; Plugge, Joana; Retina, Nusrat

    1998-01-01

    The Aircraft/Air Traffic Management Functional Analysis Model, Version 2.0 (FAM 2.0), is a discrete event simulation model designed to support analysis of alternative concepts in air traffic management and control. FAM 2.0 was developed by the Logistics Management Institute (LMI) under a National Aeronautics and Space Administration (NASA) contract. This document provides a technical description of FAM 2.0 and its computer files to enable the modeler and programmer to make enhancements or modifications to the model. Those interested in a guide for using the model in analysis should consult the companion document, Aircraft/Air Traffic Management Functional Analysis Model, Version 2.0 Users Manual.

  3. 14 CFR 135.413 - Responsibility for airworthiness.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... 14 Aeronautics and Space 3 2010-01-01 2010-01-01 false Responsibility for airworthiness. 135.413 Section 135.413 Aeronautics and Space FEDERAL AVIATION ADMINISTRATION, DEPARTMENT OF TRANSPORTATION... REQUIREMENTS: COMMUTER AND ON DEMAND OPERATIONS AND RULES GOVERNING PERSONS ON BOARD SUCH AIRCRAFT...

  4. 14 CFR 21.273 - Airworthiness certificates other than experimental.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... experimental. 21.273 Section 21.273 Aeronautics and Space FEDERAL AVIATION ADMINISTRATION, DEPARTMENT OF... Procedures § 21.273 Airworthiness certificates other than experimental. (a) The manufacturer may issue an... basis of the inspection and production flight check, that each aircraft conforms to a type design...

  5. 14 CFR 21.273 - Airworthiness certificates other than experimental.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... experimental. 21.273 Section 21.273 Aeronautics and Space FEDERAL AVIATION ADMINISTRATION, DEPARTMENT OF... Procedures § 21.273 Airworthiness certificates other than experimental. (a) The manufacturer may issue an... basis of the inspection and production flight check, that each aircraft conforms to a type design...

  6. Data management in an object-oriented distributed aircraft conceptual design environment

    NASA Astrophysics Data System (ADS)

    Lu, Zhijie

    In the competitive global market place, aerospace companies are forced to deliver the right products to the right market, with the right cost, and at the right time. However, the rapid development of technologies and new business opportunities, such as mergers, acquisitions, supply chain management, etc., have dramatically increased the complexity of designing an aircraft. Therefore, the pressure to reduce design cycle time and cost is enormous. One way to solve such a dilemma is to develop and apply advanced engineering environments (AEEs), which are distributed collaborative virtual design environments linking researchers, technologists, designers, etc., together by incorporating application tools and advanced computational, communications, and networking facilities. Aircraft conceptual design, as the first design stage, provides major opportunity to compress design cycle time and is the cheapest place for making design changes. However, traditional aircraft conceptual design programs, which are monolithic programs, cannot provide satisfactory functionality to meet new design requirements due to the lack of domain flexibility and analysis scalability. Therefore, we are in need of the next generation aircraft conceptual design environment (NextADE). To build the NextADE, the framework and the data management problem are two major problems that need to be addressed at the forefront. Solving these two problems, particularly the data management problem, is the focus of this research. In this dissertation, in light of AEEs, a distributed object-oriented framework is firstly formulated and tested for the NextADE. In order to improve interoperability and simplify the integration of heterogeneous application tools, data management is one of the major problems that need to be tackled. To solve this problem, taking into account the characteristics of aircraft conceptual design data, a robust, extensible object-oriented data model is then proposed according to the

  7. Power management and distribution system for a More-Electric Aircraft (MADMEL) -- Program status

    SciTech Connect

    Maldonado, M.A.; Shah, N.M.; Cleek, K.J.; Walia, P.S.

    1995-12-31

    A number of technology breakthroughs in recent years have rekindled the concept of a more-electric aircraft. High-power solid-state switching devices, electrohydrostatic actuators (EHAs), electromechanical actuators (EMAs), and high-power generators are just a few examples of component developments that have made dramatic improvements in properties such as weight, size, power, and cost. However, these components cannot be applied piecemeal. A complete, and somewhat revolutionary, system design approach is needed to exploit the benefits that a more-electric aircraft can provide. A five-phase Power Management and Distribution System for a More-Electric Aircraft (MADMEL) program was awarded by the Air Force to the Northrop/Grumman, Military Aircraft Division team in September 1991. The objective of the program is to design, develop, and demonstrate an advanced electrical power generation and distribution system for a more-electric aircraft (MEA). The MEA emphasizes the use of electrical power in place of hydraulics, pneumatic, and mechanical power to optimize the performance and life cycle cost of the aircraft. This paper presents an overview of the MADMEL program and a top-level summary of the program results, development and testing of major components to date. In Phase 1 and Phase 2 studies, the electrical load requirements were established and the electrical power system architecture was defined for both near-term (NT-year 1996) and far-term (FT-year 2003) MEA application. The detailed design and specification for the electrical power system (EPS), its interface with the Vehicle Management System, and the test set-up were developed under the recently completed Phase 3. The subsystem level hardware fabrication and testing will be performed under the on-going Phase 4 activities. The overall system level integration and testing will be performed in Phase 5.

  8. Sensors and Rotordynamics Health Management Research for Aircraft Turbine Engines

    NASA Technical Reports Server (NTRS)

    Lekki, J.; Abdul-Aziz, A.; Adamovsky, G.; Berger, D.; Fralick, G.; Gyekenyesi, A.; Hunter, G.; Tokars, R.; Venti, M.; Woike, M.; Wrbanek, J.; Wrbanek, S.

    2011-01-01

    Develop Advanced Sensor Technology and rotordynamic structural diagnostics to address existing Aviation Safety Propulsion Health Management needs as well as proactively begin to address anticipated safety issues for new technologies.

  9. 14 CFR 39.19 - May I address the unsafe condition in a way other than that set out in the airworthiness directive?

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ... 14 Aeronautics and Space 1 2014-01-01 2014-01-01 false May I address the unsafe condition in a way other than that set out in the airworthiness directive? 39.19 Section 39.19 Aeronautics and Space FEDERAL AVIATION ADMINISTRATION, DEPARTMENT OF TRANSPORTATION AIRCRAFT AIRWORTHINESS DIRECTIVES §...

  10. 14 CFR 39.27 - What do I do if the airworthiness directive conflicts with the service document on which it is...

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ... 14 Aeronautics and Space 1 2014-01-01 2014-01-01 false What do I do if the airworthiness directive conflicts with the service document on which it is based? 39.27 Section 39.27 Aeronautics and Space FEDERAL AVIATION ADMINISTRATION, DEPARTMENT OF TRANSPORTATION AIRCRAFT AIRWORTHINESS DIRECTIVES § 39.27 What do...

  11. Definition and analytical evaluation of a power management system for tilt-rotor aircraft

    NASA Technical Reports Server (NTRS)

    Morris, J. J.; Alexander, H. R.

    1978-01-01

    The paper reviews the special design criteria which apply to power management in a tilt-rotor aircraft. These include the need for accurate and fast control of rpm and thrust, while accounting for the dynamic interactions between rotor systems caused by cross-shafting and aircraft lateral/directional response. The power management system is also required to provide acceptable high speed sensitivity to longitudinal turbulence. It is shown that the criteria can best be met using a single governor adjusting the collective pitch by an amount proportional to a combination of the average rpm and the integral of the average rpm of the two rotors. This system is evaluated and compared with other candidate systems in hover and cruise flight.

  12. Knowledge-Based Aircraft Automation: Managers Guide on the use of Artificial Intelligence for Aircraft Automation and Verification and Validation Approach for a Neural-Based Flight Controller

    NASA Technical Reports Server (NTRS)

    Broderick, Ron

    1997-01-01

    The ultimate goal of this report was to integrate the powerful tools of artificial intelligence into the traditional process of software development. To maintain the US aerospace competitive advantage, traditional aerospace and software engineers need to more easily incorporate the technology of artificial intelligence into the advanced aerospace systems being designed today. The future goal was to transition artificial intelligence from an emerging technology to a standard technology that is considered early in the life cycle process to develop state-of-the-art aircraft automation systems. This report addressed the future goal in two ways. First, it provided a matrix that identified typical aircraft automation applications conducive to various artificial intelligence methods. The purpose of this matrix was to provide top-level guidance to managers contemplating the possible use of artificial intelligence in the development of aircraft automation. Second, the report provided a methodology to formally evaluate neural networks as part of the traditional process of software development. The matrix was developed by organizing the discipline of artificial intelligence into the following six methods: logical, object representation-based, distributed, uncertainty management, temporal and neurocomputing. Next, a study of existing aircraft automation applications that have been conducive to artificial intelligence implementation resulted in the following five categories: pilot-vehicle interface, system status and diagnosis, situation assessment, automatic flight planning, and aircraft flight control. The resulting matrix provided management guidance to understand artificial intelligence as it applied to aircraft automation. The approach taken to develop a methodology to formally evaluate neural networks as part of the software engineering life cycle was to start with the existing software quality assurance standards and to change these standards to include neural network

  13. Formal Methods in Air Traffic Management: The Case of Unmanned Aircraft Systems

    NASA Technical Reports Server (NTRS)

    Munoz, Cesar A.

    2015-01-01

    As the technological and operational capabilities of unmanned aircraft systems (UAS) continue to grow, so too does the need to introduce these systems into civil airspace. Unmanned Aircraft Systems Integration in the National Airspace System is a NASA research project that addresses the integration of civil UAS into non-segregated airspace operations. One of the major challenges of this integration is the lack of an onboard pilot to comply with the legal requirement that pilots see and avoid other aircraft. The need to provide an equivalent to this requirement for UAS has motivated the development of a detect and avoid (DAA) capability to provide the appropriate situational awareness and maneuver guidance in avoiding and remaining well clear of traffic aircraft. Formal methods has played a fundamental role in the development of this capability. This talk reports on the formal methods work conducted under NASA's Safe Autonomous System Operations project in support of the development of DAA for UAS. This work includes specification of low-level and high-level functional requirements, formal verification of algorithms, and rigorous validation of software implementations. The talk also discusses technical challenges in formal methods research in the context of the development and safety analysis of advanced air traffic management concepts.

  14. Sensor Needs for Control and Health Management of Intelligent Aircraft Engines

    NASA Technical Reports Server (NTRS)

    Simon, Donald L.; Gang, Sanjay; Hunter, Gary W.; Guo, Ten-Huei; Semega, Kenneth J.

    2004-01-01

    NASA and the U.S. Department of Defense are conducting programs which support the future vision of "intelligent" aircraft engines for enhancing the affordability, performance, operability, safety, and reliability of aircraft propulsion systems. Intelligent engines will have advanced control and health management capabilities enabling these engines to be self-diagnostic, self-prognostic, and adaptive to optimize performance based upon the current condition of the engine or the current mission of the vehicle. Sensors are a critical technology necessary to enable the intelligent engine vision as they are relied upon to accurately collect the data required for engine control and health management. This paper reviews the anticipated sensor requirements to support the future vision of intelligent engines from a control and health management perspective. Propulsion control and health management technologies are discussed in the broad areas of active component controls, propulsion health management and distributed controls. In each of these three areas individual technologies will be described, input parameters necessary for control feedback or health management will be discussed, and sensor performance specifications for measuring these parameters will be summarized.

  15. Cost and schedule management on the quiet short-haul research aircraft project

    NASA Technical Reports Server (NTRS)

    Wilcox, D. E.; Patterakis, P.

    1979-01-01

    The Quiet Short-Haul Research Aircraft (QSRA) Project, one of the largest aeronautical programs undertaken by NASA to date, achieved a significant cost underrun. This is attributed to numerous factors, not the least of which were the contractual arrangement and the system of cost and schedule management employed by the contractor. This paper summarizes that system and the methods used for cost/performance measurement by the contractor and by the NASA project management. Recommendations are made for the use of some of these concepts in particular for future programs of a similar nature.

  16. FAA Airworthiness Assurance NDI Validation Center (AANC) operated by Sandia National Laboratories.

    SciTech Connect

    Roach, Dennis Patrick; Hartman, Roger D.

    2010-09-01

    Airworthiness Assurance NDI Validation Center (AANC) objectives are: (1) Enhance aircraft safety and reliability; (2) Aid developing advanced aircraft designs and maintenance techniques; (3) Provide our customers with comprehensive, independent, and quantitative/qualitative evaluations of new and enhanced inspection, maintenance, and repair techniques; (4) Facilitate transferring effective technologies into the aviation industry; (5) Support FAA rulemaking process by providing guidance on content & necessary tools to meet requirements or recommendations of FARs, ADs, ACs, SBs, SSIDs, CPCP, and WFD; and (6) Coordinate with and respond to Airworthiness Assurance Working Group (AAWG) in support of FAA Aviation Rulemaking Advisory Committee (ARAC).

  17. Thermal management for a Mach 5 cruise aircraft using endothermic fuel

    NASA Technical Reports Server (NTRS)

    Petley, Dennis H.; Jones, Stuart C.

    1990-01-01

    The present thermal management system for a carrier-based Mach 5 cruise-capable aircraft whose propulsion system does not entail cryogenic fuels is predicated on the use of the catalytic endothermic reaction of a petroleum-derived hydrocarbon fuel as the heat sink for engine cooling. The insulation of engine flowpath surfaces reduces cooling requirements. The primary elements of this closed-cycle cooling system are a fuel preheater, a catalytic fuel reactor, and engine wall-cooling panels; a silicone-based liquid polymer is used as the coolant. Structural, weight, and thermal analysis results are presented for each of the primary components.

  18. Aircraft Configuration and Flight Crew Compliance with Procedures While Conducting Flight Deck Based Interval Management (FIM) Operations

    NASA Technical Reports Server (NTRS)

    Shay, Rick; Swieringa, Kurt A.; Baxley, Brian T.

    2012-01-01

    Flight deck based Interval Management (FIM) applications using ADS-B are being developed to improve both the safety and capacity of the National Airspace System (NAS). FIM is expected to improve the safety and efficiency of the NAS by giving pilots the technology and procedures to precisely achieve an interval behind the preceding aircraft by a specific point. Concurrently but independently, Optimized Profile Descents (OPD) are being developed to help reduce fuel consumption and noise, however, the range of speeds available when flying an OPD results in a decrease in the delivery precision of aircraft to the runway. This requires the addition of a spacing buffer between aircraft, reducing system throughput. FIM addresses this problem by providing pilots with speed guidance to achieve a precise interval behind another aircraft, even while flying optimized descents. The Interval Management with Spacing to Parallel Dependent Runways (IMSPiDR) human-in-the-loop experiment employed 24 commercial pilots to explore the use of FIM equipment to conduct spacing operations behind two aircraft arriving to parallel runways, while flying an OPD during high-density operations. This paper describes the impact of variations in pilot operations; in particular configuring the aircraft, their compliance with FIM operating procedures, and their response to changes of the FIM speed. An example of the displayed FIM speeds used incorrectly by a pilot is also discussed. Finally, this paper examines the relationship between achieving airline operational goals for individual aircraft and the need for ATC to deliver aircraft to the runway with greater precision. The results show that aircraft can fly an OPD and conduct FIM operations to dependent parallel runways, enabling operational goals to be achieved efficiently while maintaining system throughput.

  19. Tiltrotor noise reduction through flight trajectory management and aircraft configuration control

    NASA Astrophysics Data System (ADS)

    Gervais, Marc

    A tiltrotor can hover, takeoff and land vertically as well as cruise at high speeds and fly long distances. Because of these unique capabilities, tiltrotors are envisioned as an aircraft that could provide a solution to the issue of airport gridlock by operating on stub runways, helipads, or from smaller regional airports. However, during an approach-to-land a tiltrotor is susceptible to radiating strong impulsive noise, in particular, Blade-Vortex Interaction noise (BVI), a phenomenon highly dependent on the vehicle's performance-state. A mathematical model was developed to predict the quasi-static performance characteristics of a tiltrotor during a converting approach in the longitudinal plane. Additionally, a neural network was designed to model the acoustic results from a flight test of the XV-15 tiltrotor as a function of the aircraft's performance parameters. The performance model was linked to the neural network to yield a combined performance/acoustic model that is capable of predicting tiltrotor noise emitted during a decelerating approach. The model was then used to study noise trends associated with different combinations of airspeed, nacelle tilt, and flight path angle. It showed that BVI noise is the dominant noise source during a descent and that its strength increases with steeper descent angles. Strong BVI noise was observed at very steep flight path angles, suggesting that the tiltrotor's high downwash prevents the wake from being pushed above the rotor, even at such steep descent angles. The model was used to study the effects of various aircraft configuration and flight trajectory parameters on the rotor inflow, which adequately captured the measured BVI noise trends. Flight path management effectively constrained the rotor inflow during a converting approach and thus limited the strength of BVI noise. The maximum deceleration was also constrained by controlling the nacelle tilt-rate during conversion. By applying these constraints, low BVI noise

  20. A Survey of Intelligent Control and Health Management Technologies for Aircraft Propulsion Systems

    NASA Technical Reports Server (NTRS)

    Litt, Jonathan S.; Simon, Donald L.; Garg, Sanjay; Guo, Ten-Heui; Mercer, Carolyn; Behbahani, Alireza; Bajwa, Anupa; Jensen, Daniel T.

    2005-01-01

    Intelligent Control and Health Management technology for aircraft propulsion systems is much more developed in the laboratory than in practice. With a renewed emphasis on reducing engine life cycle costs, improving fuel efficiency, increasing durability and life, etc., driven by various government programs, there is a strong push to move these technologies out of the laboratory and onto the engine. This paper describes the existing state of engine control and on-board health management, and surveys some specific technologies under development that will enable an aircraft propulsion system to operate in an intelligent way--defined as self-diagnostic, self-prognostic, self-optimizing, and mission adaptable. These technologies offer the potential for creating extremely safe, highly reliable systems. The technologies will help to enable a level of performance that far exceeds that of today s propulsion systems in terms of reduction of harmful emissions, maximization of fuel efficiency, and minimization of noise, while improving system affordability and safety. Technologies that are discussed include various aspects of propulsion control, diagnostics, prognostics, and their integration. The paper focuses on the improvements that can be achieved through innovative software and algorithms. It concentrates on those areas that do not require significant advances in sensors and actuators to make them achievable, while acknowledging the additional benefit that can be realized when those technologies become available. The paper also discusses issues associated with the introduction of some of the technologies.

  1. Management of analytical redundancy in digital flight control systems for aircraft

    NASA Technical Reports Server (NTRS)

    Montgomery, R. C.; Price, D. B.

    1974-01-01

    This paper presents a design method for optimal redundancy management for nonlinear systems with application to highly maneuvering aircraft. The approach taken is based on selecting the failure states to be covered by the system design and constructing a cost function that represents the cost of making an incorrect decision. The decision logic which minimizes the cost requires a bank of extended Kalman filters running in parallel. This produces a severe computational requirement. To reduce this requirement, a suboptimal logic is developed based on using a nonlinear single-stage prediction algorithm in the filters with filter gains and decision logic selected using steady-state results obtained from a linearization of the vehicle and sensor dynamics. The design process is then applied to designing a redundancy management system for the F8-C aircraft. Results indicate that the system is superior in failure detection to a system using the same structure but using a linear single-stage prediction algorithm in the filters.

  2. 14 CFR 21.195 - Experimental certificates: Aircraft to be used for market surveys, sales demonstrations, and...

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... has altered the design of a type certificated aircraft may apply for an experimental certificate for... 14 Aeronautics and Space 1 2011-01-01 2011-01-01 false Experimental certificates: Aircraft to be... PROCEDURES FOR PRODUCTS AND PARTS Airworthiness Certificates § 21.195 Experimental certificates: Aircraft...

  3. 14 CFR 21.195 - Experimental certificates: Aircraft to be used for market surveys, sales demonstrations, and...

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... 14 Aeronautics and Space 1 2010-01-01 2010-01-01 false Experimental certificates: Aircraft to be... PROCEDURES FOR PRODUCTS AND PARTS Airworthiness Certificates § 21.195 Experimental certificates: Aircraft to... States may apply for an experimental certificate for an aircraft that is to be used for market...

  4. ADS-B within a Multi-Aircraft Simulation for Distributed Air-Ground Traffic Management

    NASA Technical Reports Server (NTRS)

    Barhydt, Richard; Palmer, Michael T.; Chung, William W.; Loveness, Ghyrn W.

    2004-01-01

    Automatic Dependent Surveillance Broadcast (ADS-B) is an enabling technology for NASA s Distributed Air-Ground Traffic Management (DAG-TM) concept. DAG-TM has the goal of significantly increasing capacity within the National Airspace System, while maintaining or improving safety. Under DAG-TM, aircraft exchange state and intent information over ADS-B with other aircraft and ground stations. This information supports various surveillance functions including conflict detection and resolution, scheduling, and conformance monitoring. To conduct more rigorous concept feasibility studies, NASA Langley Research Center s PC-based Air Traffic Operations Simulation models a 1090 MHz ADS-B communication structure, based on industry standards for message content, range, and reception probability. The current ADS-B model reflects a mature operating environment and message interference effects are limited to Mode S transponder replies and ADS-B squitters. This model was recently evaluated in a Joint DAG-TM Air/Ground Coordination Experiment with NASA Ames Research Center. Message probability of reception vs. range was lower at higher traffic levels. The highest message collision probability occurred near the meter fix serving as the confluence for two arrival streams. Even the highest traffic level encountered in the experiment was significantly less than the industry standard "LA Basin 2020" scenario. Future studies will account for Mode A and C message interference (a major effect in several industry studies) and will include Mode A and C aircraft in the simulation, thereby increasing the total traffic level. These changes will support ongoing enhancements to separation assurance functions that focus on accommodating longer ADS-B information update intervals.

  5. Improving aircraft composite inspections using optimized reference standards

    SciTech Connect

    Roach, D.; Dorrell, L.; Kollgaard, J.; Dreher, T.

    1998-10-01

    The rapidly increasing use of composites on commercial airplanes coupled with the potential for economic savings associated with their use in aircraft structures means that the demand for composite materials technology will continue to increase. Inspecting these composite structures is a critical element in assuring this continued airworthiness. The FAA`s Airworthiness Assurance NDI Validation Center, in conjunction with the Commercial Aircraft Composite Repair committee, is developing a set of composite reference standards to be used in NDT equipment calibration for accomplishment of damage assessment and post-repair inspection of all commercial aircraft composites. In this program, a series of NDI tests on a matrix of composite aircraft structures and prototype reference standards were completed in order to minimize the number of standards needed to carry out composite inspections on aircraft. Two tasks, related to composite laminates and non-metallic composite honeycomb configurations, were addressed.

  6. 41 CFR 102-33.125 - If we use Federal aircraft, what are our management responsibilities?

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... use Federal aircraft, you are responsible for— (a) Establishing agency-specific Flight Program... accounting for aircraft parts; (e) Reporting inventory, cost, and utilization data (for reporting... and FMR subchapter B (41 CFR chapter 102, subchapter B)....

  7. 41 CFR 102-33.125 - If we use Federal aircraft, what are our management responsibilities?

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... use Federal aircraft, you are responsible for— (a) Establishing agency-specific Flight Program... accounting for aircraft parts; (e) Reporting inventory, cost, and utilization data (for reporting... and FMR subchapter B (41 CFR chapter 102, subchapter B)....

  8. Crack detection on HU-25 Guardian aircraft

    SciTech Connect

    Moore, D.G.; Jones, C.R.; Mihelic, J.E.; Dassler, E.; Walizer, J.

    1996-10-01

    An ultrasonic inspection method was developed at FAA`s Airworthiness Assurance NDI Validation Center (AANC) to easily and rapidly detect hidden fatigue cracks in the copilot vertical windshield post on USCG (Coast Guard) HU-25 `Guardian` aircraft. The inspection procedure locates hidden cracks as small as 3.2 mm emanating from internal fastener holes and determines their length. A test procedure was developed and a baseline assessment of the USCG fleet conducted. Inspection results on 41 aircraft revealed good correlation with results made during subsequent structural disassembly and visual inspection of selected aircraft.

  9. 77 FR 32069 - Airworthiness Directives; Gulfstream Aerospace LP (Type Certificate Previously Held by Israel...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-05-31

    ... Procedures (44 FR 11034, February 26, 1979); 3. Will not affect intrastate aviation in Alaska; and 4. Will... Aerospace LP (Type Certificate Previously Held by Israel Aircraft Industries, Ltd.) Airplanes AGENCY... propose to adopt a new airworthiness directive (AD) for certain Gulfstream Aerospace LP (Type...

  10. 77 FR 12991 - Airworthiness Directives; Hawker Beechcraft Corporation Airplanes Equipped With a Certain...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-03-05

    ...: This final rule is effective March 5, 2012. The effective date for AD 2011-27-04 (76 FR 81790, December....gov . SUPPLEMENTARY INFORMATION: Airworthiness Directive 2011-27-04, amendment 39-16905 (76 FR 81790... CONTACT: Eric B. Potter, Aerospace Engineer, Atlanta Aircraft Certification Office, FAA, 1701...

  11. Some inadequacies of the current human factors certification process of advanced aircraft technologies

    NASA Technical Reports Server (NTRS)

    Paries, Jean

    1994-01-01

    Automation related accidents or serious incidents are not limited to advanced technology aircraft. There is a full history of such accidents with conventional technology aircraft. However, this type of occurrence is far from sparing the newest 'glass cockpit' generation, and it even seems to be a growing contributor to its accident rate. Nevertheless, all these aircraft have been properly certificated according to the relevant airworthiness regulations. Therefore, there is a growing concern that with the technological advancement of air transport aircraft cockpits, the current airworthiness regulations addressing cockpit design and human factors may have reached some level of inadequacy. This paper reviews some aspects of the current airworthiness regulations and certification process related to human factors of cockpit design and focuses on questioning their ability to guarantee the intended safety objectives.

  12. 41 CFR 102-36.340 - What must we do when disposing of excess aircraft?

    Code of Federal Regulations, 2012 CFR

    2012-01-01

    ... maintained to FAA airworthiness standards; (v) Aircraft was previously used for non-flight purposes (i.e... the designated transfer or donation recipient's intended use is for non-flight purposes, you must... prior to releasing the aircraft to the authorized recipient. GSA will forward the data plates to FAA....

  13. 78 FR 50317 - Special Conditions: Cessna Aircraft Company, Model J182T; Diesel Cycle Engine Installation

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-08-19

    ...These special conditions are issued for the Cessna Aircraft Company (Cessna) Model J182T airplane. This airplane will have a novel or unusual design feature(s) associated with the installation of an aircraft diesel engine (ADE). The applicable airworthiness regulations do not contain adequate or appropriate safety standards for this design feature. These special conditions contain the......

  14. Initial Experimental Airworthiness Certification Guidance for UAS. UAS Experimental Certification Process and Guidance

    NASA Technical Reports Server (NTRS)

    2005-01-01

    This paper addresses the regulatory processes and requirements already in place by which an applicant might obtain experimental airworthiness certification for a civil Unmanned Aircraft System (UAS). It is more extensive and subsequent to an earlier, similar deliverable, PD007, which was an interim study of the same topic. Since few regulatory airworthiness and operating standards exist for UAS like those for traditional manned aircraft and since most UAS have historically been developed and operated under military auspices, civil use of UAS in the NAS is a new and unfamiliar challenge requiring specific and unique considerations. Experimental certification is the most basic level of FAA approval toward routine UAS operation in the NAS. The paper reviews and explains existing FAA requirements for an applicant seeking experimental airworthiness approval and details the process for submission of necessary information. It summarizes the limited purposes for which experimental aircraft may be used and addresses pertinent aspects of UAS design, construction and operation in the NAS in harmony with traditional manned aircraft. Policy IPT position is that UAS, while different from manned aircraft, can use the same initial processes to gain civil operating experience under the experimental approval. Particular note is taken of those UAS-unique characteristics which require extra attention to assure equivalent safety of operation, such as the UAS control station and sense-and-avoid. The paper also provides "best practices" guidance for UAS manufacturers and FAA personnel in two appendices. The material in Appendix A is intended to provide guidance on assuring UAS safety to FAA, and provides FAA personnel with a suggested list of items to review, with a focus on UAS unique factors, prior to issuance of an experimental airworthiness certificate. Appendix B provides an outline for a program letter which a manufacturer could use in preparing the application for an UAS

  15. Constructing an Efficient Self-Tuning Aircraft Engine Model for Control and Health Management Applications

    NASA Technical Reports Server (NTRS)

    Armstrong, Jeffrey B.; Simon, Donald L.

    2012-01-01

    Self-tuning aircraft engine models can be applied for control and health management applications. The self-tuning feature of these models minimizes the mismatch between any given engine and the underlying engineering model describing an engine family. This paper provides details of the construction of a self-tuning engine model centered on a piecewise linear Kalman filter design. Starting from a nonlinear transient aerothermal model, a piecewise linear representation is first extracted. The linearization procedure creates a database of trim vectors and state-space matrices that are subsequently scheduled for interpolation based on engine operating point. A series of steady-state Kalman gains can next be constructed from a reduced-order form of the piecewise linear model. Reduction of the piecewise linear model to an observable dimension with respect to available sensed engine measurements can be achieved using either a subset or an optimal linear combination of "health" parameters, which describe engine performance. The resulting piecewise linear Kalman filter is then implemented for faster-than-real-time processing of sensed engine measurements, generating outputs appropriate for trending engine performance, estimating both measured and unmeasured parameters for control purposes, and performing on-board gas-path fault diagnostics. Computational efficiency is achieved by designing multidimensional interpolation algorithms that exploit the shared scheduling of multiple trim vectors and system matrices. An example application illustrates the accuracy of a self-tuning piecewise linear Kalman filter model when applied to a nonlinear turbofan engine simulation. Additional discussions focus on the issue of transient response accuracy and the advantages of a piecewise linear Kalman filter in the context of validation and verification. The techniques described provide a framework for constructing efficient self-tuning aircraft engine models from complex nonlinear

  16. Performance Evaluation of Individual Aircraft Based Advisory Concept for Surface Management

    NASA Technical Reports Server (NTRS)

    Gupta, Gautam; Malik, Waqar; Tobias, Leonard; Jung, Yoon; Hong, Ty; Hayashi, Miwa

    2013-01-01

    Surface operations at airports in the US are based on tactical operations, where departure aircraft primarily queue up and wait at the departure runways. NASA's Spot And Runway Departure Advisor (SARDA) tool was developed to address these inefficiencies through Air Traffic Control Tower advisories. The SARDA system is being updated to include collaborative gate hold, either tactically or strategically. This paper presents the results of the human-in-the-loop evaluation of the tactical gate hold version of SARDA in a 360 degree simulated tower setting. The simulations were conducted for the east side of the Dallas/Fort Worth airport. The new system provides gate hold, ground controller and local controller advisories based on a single scheduler. Simulations were conducted with SARDA on and off, the off case reflecting current day operations with no gate hold. Scenarios based on medium (1.2x current levels) and heavy (1.5x current levels) traffic were explored. Data collected from the simulation was analyzed for runway usage, delay for departures and arrivals, and fuel consumption. Further, Traffic Management Initiatives were introduced for a subset of the aircraft. Results indicated that runway usage did not change with the use of SARDA, i.e., there was no loss in runway throughput as compared to baseline. Taxiing delay was significantly reduced with the use of advisory by 45% in medium scenarios and 60% in heavy. Arrival delay was unaffected by the use of advisory. Total fuel consumption was also reduced by 23% in medium traffic and 33% in heavy. TMI compliance appeared unaffected by the advisory

  17. Performance Evaluation of SARDA: An Individual Aircraft-Based Advisory Concept for Surface Management

    NASA Technical Reports Server (NTRS)

    Jung, Yoon; Malik, Waqar; Tobias, Leonard; Gupta, Gautam; Hoang, Ty; Hayashi, Miwa

    2015-01-01

    Surface operations at airports in the US are based on tactical operations, where departure aircraft primarily queue up and wait at the departure runways. NASAs Spot And Runway Departure Advisor (SARDA) tool was developed to address these inefficiencies through Air Traffic Control Tower advisories. The SARDA system is being updated to include collaborative gate hold, either tactically or strategically. This paper presents the results of the human-in-the-loop evaluation of the tactical gate hold version of SARDA in a 360 degree simulated tower setting. The simulations were conducted for the east side of the Dallas-Fort Worth airport. The new system provides gate hold, ground controller and local controller advisories based on a single scheduler. Simulations were conducted with SARDA on and off, the off case reflecting current day operations with no gate hold. Scenarios based on medium (1.2x current levels) and heavy (1.5x current levels) traffic were explored. Data collected from the simulation was analyzed for runway usage, delay for departures and arrivals, and fuel consumption. Further, Traffic Management Initiatives were introduced for a subset of the aircraft. Results indicated that runway usage did not change with the use of SARDA, i.e., there was no loss in runway throughput as compared to baseline. Taxiing delay was significantly reduced with the use of advisory by 45 in medium scenarios and 60 in heavy. Arrival delay was unaffected by the use of advisory. Total fuel consumption was also reduced by 23 in medium traffic and 33 in heavy. TMI compliance appeared unaffected by the advisory.

  18. 14 CFR 39.9 - What if I operate an aircraft or use a product that does not meet the requirements of an...

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ... 14 Aeronautics and Space 1 2014-01-01 2014-01-01 false What if I operate an aircraft or use a... and Space FEDERAL AVIATION ADMINISTRATION, DEPARTMENT OF TRANSPORTATION AIRCRAFT AIRWORTHINESS... each time you operate the aircraft or use the product....

  19. 78 FR 46540 - Airworthiness Directives; The Boeing Company Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-08-01

    ...). SUMMARY: We propose to adopt a new airworthiness directive (AD) for certain The Boeing Company Model 747... fasteners, which can lead to cracking and loss of load carrying capacity, resulting in a possible..., Attention: Data & Services Management, P.O. Box 3707, MC 2H-65, Seattle, WA 98124-2207; telephone...

  20. Comparison of Aircraft Models and Integration Schemes for Interval Management in the TRACON

    NASA Technical Reports Server (NTRS)

    Neogi, Natasha; Hagen, George E.; Herencia-Zapana, Heber

    2012-01-01

    Reusable models of common elements for communication, computation, decision and control in air traffic management are necessary in order to enable simulation, analysis and assurance of emergent properties, such as safety and stability, for a given operational concept. Uncertainties due to faults, such as dropped messages, along with non-linearities and sensor noise are an integral part of these models, and impact emergent system behavior. Flight control algorithms designed using a linearized version of the flight mechanics will exhibit error due to model uncertainty, and may not be stable outside a neighborhood of the given point of linearization. Moreover, the communication mechanism by which the sensed state of an aircraft is fed back to a flight control system (such as an ADS-B message) impacts the overall system behavior; both due to sensor noise as well as dropped messages (vacant samples). Additionally simulation of the flight controller system can exhibit further numerical instability, due to selection of the integration scheme and approximations made in the flight dynamics. We examine the theoretical and numerical stability of a speed controller under the Euler and Runge-Kutta schemes of integration, for the Maintain phase for a Mid-Term (2035-2045) Interval Management (IM) Operational Concept for descent and landing operations. We model uncertainties in communication due to missed ADS-B messages by vacant samples in the integration schemes, and compare the emergent behavior of the system, in terms of stability, via the boundedness of the final system state. Any bound on the errors incurred by these uncertainties will play an essential part in a composable assurance argument required for real-time, flight-deck guidance and control systems,. Thus, we believe that the creation of reusable models, which possess property guarantees, such as safety and stability, is an innovative and essential requirement to assessing the emergent properties of novel airspace

  1. Statistical Turbofan Architecture Management for Use in a Supercirculation Wing Aircraft

    NASA Astrophysics Data System (ADS)

    Drãgan, Valeriu

    2012-12-01

    The paper presents an attempt to determine weather the architecture difference between the two spool and three spool turbofan engines can have any significant effect uppon their use in super circulation wing (SCW) aircraft. Such aircraft have been experimented with since 1970's and have been revived because of growing interest in silent STOL aircraft. The approach used is statistical, i.e. actual data provided by engine manufacturers and regulating authorities such as ICAO and EASA was used to derive certain relevant parameters which were then analyzed and conclusions were formulated.

  2. Rationale and description of a coordinated cockpit display for aircraft flight management

    NASA Technical Reports Server (NTRS)

    Baty, D. L.

    1976-01-01

    The design for aircraft cockpit display systems is discussed in detail. The system consists of a set of three beam penetration color cathode ray tubes (CRT). One of three orthogonal projects of the aircraft's state appears on each CRT which displays different views of the same information. The color feature is included to obtain visual separation of information elements. The colors of red, green and yellow are used to differentiate control, performance and navigation information. Displays are coordinated in information and color.

  3. 75 FR 43882 - Airworthiness Directives; Bombardier, Inc. Model CL-600-2C10 (Regional Jet Series 700, 701, & 702...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-07-27

    ...), and CL-600-2D24 (Regional Jet Series 900) Airplanes AGENCY: Federal Aviation Administration (FAA), DOT.... List of Subjects in 14 CFR Part 39 Air transportation, Aircraft, Aviation safety, Incorporation by... TRANSPORTATION Federal Aviation Administration 14 CFR Part 39 RIN 2120-AA64 Airworthiness Directives;...

  4. 76 FR 4264 - Airworthiness Directives; Bombardier, Inc. Model CL-600-2C10 (Regional Jet Series 700, 701, & 702...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-01-25

    ...), and CL-600-2D24 (Regional Jet Series 900) Airplanes AGENCY: Federal Aviation Administration (FAA), DOT... Part 39 Air transportation, Aircraft, Aviation safety, Incorporation by reference, Safety. The Proposed... TRANSPORTATION Federal Aviation Administration 14 CFR Part 39 RIN 2120-AA64 Airworthiness Directives;...

  5. 76 FR 29997 - Airworthiness Directives; Bombardier, Inc. Model CL-600-2B19 (Regional Jet Series 100 & 440...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-05-24

    ...., Washington, DC 20590. FOR FURTHER INFORMATION CONTACT: Wing Chan, Aerospace Engineer, Avionics and Flight Test Branch, ANE-172, FAA, New York Aircraft Certification Office (ACO), 1600 Stewart Avenue, Suite 410... . SUPPLEMENTARY INFORMATION: Airworthiness Directive 2011-07-06, amendment 39-16643 (76 FR 18024, April 1,...

  6. Integrating small mammal community variables into aircraft-wildlife collision management plans at Namibian airports.

    PubMed

    Hauptfleisch, Morgan L; Avenant, Nico L

    2015-11-01

    Understanding ecosystems within and around airports can help to determine the causes and possible mitigation measures for collisions between aircraft and wildlife. Small mammal communities are an important component of the semi-arid savanna ecosystems of Namibia, its productivity and its ecosystem integrity. They are also a major direct attractant for raptors at airports. The present study compared the abundance and diversity of small mammals between Namibia's 2 main airport properties (Hosea Kutako International Airport and Eros Airport), and among areas of land used for various purposes surrounding the airports. A total of 2150 small mammals (3 orders, 11 species) were captured over 4 trapping seasons. Small mammal abundance was significantly higher at the end of the growing season than during the non-growing season. The grass mowing regimen in current management plans at the airports resulted in a significant reduction of small mammal abundance at Hosea Kutako during the non-growing season only, thus indicating that annual mowing is effective but insufficient to reduce the overall abundance of mammal prey species for raptors. Small mammal numbers were significantly higher at Hosea Kutako Airport compared to the cattle and game farming land surrounding the airport, while no differences in small mammal densities or diversity were found for areas with different land uses at and surrounding Eros. The study suggests that the fence around Hosea Kutako provides a refuge for small mammals, resulting in higher densities. It also indicates that different surrounding land use practices result in altered ecosystem function and productivity, an important consideration when identifying wildlife attractants at airports.

  7. Integrating small mammal community variables into aircraft-wildlife collision management plans at Namibian airports.

    PubMed

    Hauptfleisch, Morgan L; Avenant, Nico L

    2015-11-01

    Understanding ecosystems within and around airports can help to determine the causes and possible mitigation measures for collisions between aircraft and wildlife. Small mammal communities are an important component of the semi-arid savanna ecosystems of Namibia, its productivity and its ecosystem integrity. They are also a major direct attractant for raptors at airports. The present study compared the abundance and diversity of small mammals between Namibia's 2 main airport properties (Hosea Kutako International Airport and Eros Airport), and among areas of land used for various purposes surrounding the airports. A total of 2150 small mammals (3 orders, 11 species) were captured over 4 trapping seasons. Small mammal abundance was significantly higher at the end of the growing season than during the non-growing season. The grass mowing regimen in current management plans at the airports resulted in a significant reduction of small mammal abundance at Hosea Kutako during the non-growing season only, thus indicating that annual mowing is effective but insufficient to reduce the overall abundance of mammal prey species for raptors. Small mammal numbers were significantly higher at Hosea Kutako Airport compared to the cattle and game farming land surrounding the airport, while no differences in small mammal densities or diversity were found for areas with different land uses at and surrounding Eros. The study suggests that the fence around Hosea Kutako provides a refuge for small mammals, resulting in higher densities. It also indicates that different surrounding land use practices result in altered ecosystem function and productivity, an important consideration when identifying wildlife attractants at airports. PMID:26331534

  8. Aircraft skin cooling system for thermal management of onboard high power electronic equipment

    SciTech Connect

    Hashemi, A.; Dyson, E.

    1996-12-31

    Integration of high-power electronic devices into existing aircraft, while minimizing the impact of additional heat load on the environmental control system of the aircraft, requires innovative approaches. One such approach is to reject heat through the aircraft skin by use of internal skin ducts with enhanced surfaces. This approach requires a system level consideration of the effect of cooling ducts, inlets and outlets on the performance of the electronic equipment and effectiveness of the heat rejection system. This paper describes the development of a system-level model to evaluate the performance of electronic equipment in an aircraft cabin and heat rejection through the skin. In this model, the outer surface of the fuselage is treated as a heat exchanger. Hot air from an equipment exhaust plenum is drawn into a series of baffled ducts within the fuselage support structure, where the heat is rejected, and then recirculated into the cabin. The cooler air form the cabin is then drawn into the electronic equipment. The aircraft air conditioning unit is also modeled to provide chilled air directly into the cabin. In addition, this paper describes a series of tests which were performed to verify the model assumptions for heat dissipation from and air flow through the equipment. The tests were performed using the actual electronic equipment in a representative cabin configuration. Results indicate very good agreement between the analytical calculations for the design point and model predictions.

  9. Safe structures for future aircraft

    NASA Technical Reports Server (NTRS)

    Mccomb, H. G., Jr.

    1983-01-01

    The failure mechanisms, design lessons, and test equipment employed by NASA in establishing the airworthiness and crashworthiness of aircraft components for commercial applications are described. The composites test programs have progressed to medium primary structures such as stabilizers and a vertical fin. The failures encountered to date have been due to the nonyielding nature of composites, which do not diffuse loads like metals, and the presence of eccentricities, irregular shapes, stiffness changes, and discontinuities that cause tension and shear. Testing to failure, which always occurred in first tests before the design loads were reached, helped identify design changes and reinforcements that produced successful products. New materials and NDE techniques are identified, together with aircraft structural design changes that offer greater protection to the passengers, fuel antimisting agents, and landing gear systems.

  10. Analysis of Complexity Evolution Management and Human Performance Issues in Commercial Aircraft Automation Systems

    NASA Technical Reports Server (NTRS)

    Vakil, Sanjay S.; Hansman, R. John

    2000-01-01

    Autoflight systems in the current generation of aircraft have been implicated in several recent incidents and accidents. A contributory aspect to these incidents may be the manner in which aircraft transition between differing behaviours or 'modes.' The current state of aircraft automation was investigated and the incremental development of the autoflight system was tracked through a set of aircraft to gain insight into how these systems developed. This process appears to have resulted in a system without a consistent global representation. In order to evaluate and examine autoflight systems, a 'Hybrid Automation Representation' (HAR) was developed. This representation was used to examine several specific problems known to exist in aircraft systems. Cyclomatic complexity is an analysis tool from computer science which counts the number of linearly independent paths through a program graph. This approach was extended to examine autoflight mode transitions modelled with the HAR. A survey was conducted of pilots to identify those autoflight mode transitions which airline pilots find difficult. The transitions identified in this survey were analyzed using cyclomatic complexity to gain insight into the apparent complexity of the autoflight system from the perspective of the pilot. Mode transitions which had been identified as complex by pilots were found to have a high cyclomatic complexity. Further examination was made into a set of specific problems identified in aircraft: the lack of a consistent representation of automation, concern regarding appropriate feedback from the automation, and the implications of physical limitations on the autoflight systems. Mode transitions involved in changing to and leveling at a new altitude were identified across multiple aircraft by numerous pilots. Where possible, evaluation and verification of the behaviour of these autoflight mode transitions was investigated via aircraft-specific high fidelity simulators. Three solution

  11. Scheduling and Delivering Aircraft to Departure Fixes in the NY Metroplex with Controller-Managed Spacing Tools

    NASA Technical Reports Server (NTRS)

    Chevalley, Eric; Parke, Bonny; Kraut, Josh M.; Bienert, Nancy; Omar, Faisal; Palmer, Everett A.

    2015-01-01

    In this paper, successful Time-Based Flow Management (TBFM) scheduling systems for arrivals are considered and adapted to apply to departures. We present a concept of operations that integrates Controller-Managed Spacing tools for departures (CMS-D) with existing tactical departure scheduling tools to coordinate demand at departure fixes in a metroplex environment. We tested our concept in a Human-in-the-Loop simulation and compared the effect of two scheduling conditions: 1) "Departure Scheduling" consisting of an emulation of the Integrated Departure and Arrival Capability (IDAC) where Towers and a Planner (Traffic Management Coordinator at the appropriate facility) coordinate aircraft scheduled takeoff times to departure fixes; and 2) "Arrival Sensitive Departure Scheduling" where, in addition, the Tower and Planner also consider arrival Scheduled Time of Arrivals (STAs) at the airport's dependent runway. Results indicate little difference between the two scheduling conditions, but a large difference between the No Tools and the two scheduling conditions with CMS-D tools. The scheduling/CMS-D tools conditions markedly reduced heading, speed clearances, and workload for controllers who were merging flows at the departure fixes. In the tool conditions, departure controllers conditioned departures earlier rather than later when aircraft were tied near the departure fixes. In the scheduling/CMS-D tools conditions, departures crossed the departure fixes 50 seconds earlier and with an 8% error rate (consisting of time ahead or behind desired time of arrival) compared to a 19% error rate in the No Tool condition. Two exploratory runs showed that similar beneficial effects can be obtained only with the CMS-D tools without scheduling takeoff times, but at the cost of a somewhat higher workload for controllers, indicating the benefits of pre-departure scheduling of aircraft with minimal delays. Hence, we found that CMS-D tools were very beneficial in the metroplex

  12. Aeroelastic Airworthiness Assesment of the Adaptive Compliant Trailing Edge Flaps

    NASA Technical Reports Server (NTRS)

    Herrera, Claudia Y.; Spivey, Natalie D.; Lung, Shun-fat; Ervin, Gregory; Flick, Peter

    2015-01-01

    The Adaptive Compliant Trailing Edge (ACTE) demonstrator is a joint task under the National Aeronautics and Space Administration Environmentally Responsible Aviation Project in partnership with the Air Force Research Laboratory and FlexSys, Inc. (Ann Arbor, Michigan). The project goal is to develop advanced technologies that enable environmentally friendly aircraft, such as adaptive compliant technologies. The ACTE demonstrator flight-test program encompassed replacing the Fowler flaps on the SubsoniC Aircraft Testbed, a modified Gulfstream III (Gulfstream Aerospace, Savannah, Georgia) aircraft, with control surfaces developed by FlexSys. The control surfaces developed by FlexSys are a pair of uniquely-designed unconventional flaps to be used as lifting surfaces during flight-testing to validate their structural effectiveness. The unconventional flaps required a multidisciplinary airworthiness assessment to prove they could withstand the prescribed flight envelope. Several challenges were posed due to the large deflections experienced by the structure, requiring non-linear analysis methods. The aeroelastic assessment necessitated both conventional and extensive testing and analysis methods. A series of ground vibration tests (GVTs) were conducted to provide modal characteristics to validate and update finite element models (FEMs) used for the flutter analyses for a subset of the various flight configurations. Numerous FEMs were developed using data from FlexSys and the ground tests. The flap FEMs were then attached to the aircraft model to generate a combined FEM that could be analyzed for aeroelastic instabilities. The aeroelastic analysis results showed the combined system of aircraft and flaps were predicted to have the required flutter margin to successfully demonstrate the adaptive compliant technology. This paper documents the details of the aeroelastic airworthiness assessment described, including the ground testing and analyses, and subsequent flight

  13. Insect detection and nitrogen management for irrigated potatoes using remote sensing from small unmanned aircraft systems

    Technology Transfer Automated Retrieval System (TEKTRAN)

    Remote sensing with small unmanned aircraft systems (sUAS) has potential applications in agriculture because low flight altitudes allow image acquisition at very high spatial resolution. We set up experiments at the Oregon State University Hermiston Agricultural Research and Extension Center with d...

  14. Agricultural aircraft and thermal imaging - from detecting sand boils at the levee to irrigation management

    Technology Transfer Automated Retrieval System (TEKTRAN)

    Thermal imaging has many potential uses from aerial platforms. A thermal imaging camera was brought into service to detect potential leakage and sand boils at the Mississippi River levee during the flood period of April and May, 2011. This camera was mounted on an agricultural aircraft and operated ...

  15. Technology Development, Validation, and Transfer Via the FAA Airworthiness Assurance Validation

    SciTech Connect

    Perry, R.L.

    1999-04-15

    In 1991, the Federal Aviation Administration (FAA) established an Airworthiness Assurance NDI Validation Center (AANC) at Sandia National Laboratories. Its primary mission is to support technology development, validation, and transfer to industry in order to enhance the airworthiness and improve the aircraft maintenance practices of the U.S. commercial aviation industry. The Center conducts projects in a myriad of engineering disciplines. The results are placed in the public domain so that the industry at-large can reap the benefits of FAA-funded Research and Development efforts. To support the Center's goals, the FAA/AANC has set up a hangar facility at the Albuquerque International Airport which contains a collection of transport and commuter aircraft as well as other test specimens. The facility replicates a working maintenance environment by incorporating both the physical inspection difficulties as well as the environmental factors which influence maintenance reliability.

  16. 41 CFR 102-36.340 - What must we do when disposing of excess aircraft?

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... operational; (ii) Data plate is available; (iii) Historical and maintenance records are available; (iv... maintained to FAA airworthiness standards; (v) Aircraft was previously used for non-flight purposes (i.e... the designated transfer or donation recipient's intended use is for non-flight purposes, you...

  17. 41 CFR 102-36.340 - What must we do when disposing of excess aircraft?

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... operational; (ii) Data plate is available; (iii) Historical and maintenance records are available; (iv... maintained to FAA airworthiness standards; (v) Aircraft was previously used for non-flight purposes (i.e... the designated transfer or donation recipient's intended use is for non-flight purposes, you...

  18. 75 FR 63420 - Airworthiness Directives; Bombardier, Inc. Model BD-700-1A10 and BD-700-1A11 Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-10-15

    ... Civil Aviation (TCCA), which is the aviation authority for Canada, has issued Canadian Airworthiness... aircraft, together with a modification to the left wing rib and debris shield, in order to prevent damage to the hydraulic lines in the event of a MLG tire failure. The debris shield on the right side...

  19. 76 FR 19903 - Special Conditions: Diamond Aircraft Industry Model DA-40NG; Diesel Cycle Engine

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-04-11

    ...These special conditions are issued for the Diamond Aircraft Industry (DAI) GmbH model DA-40NG the Austro Engine GmbH model E4 aircraft diesel engine (ADE) using turbine (jet) fuel. This airplane will have a novel or unusual design feature(s) associated with the installation of a diesel cycle engine utilizing turbine (jet) fuel. The applicable airworthiness regulations do not contain adequate......

  20. Energy management of three-dimensional minimum-time intercept. [for aircraft flight optimization

    NASA Technical Reports Server (NTRS)

    Kelley, H. J.; Cliff, E. M.; Visser, H. G.

    1985-01-01

    A real-time computer algorithm to control and optimize aircraft flight profiles is described and applied to a three-dimensional minimum-time intercept mission. The proposed scheme has roots in two well known techniques: singular perturbations and neighboring-optimal guidance. Use of singular-perturbation ideas is made in terms of the assumed trajectory-family structure. A heading/energy family of prestored point-mass-model state-Euler solutions is used as the baseline in this scheme. The next step is to generate a near-optimal guidance law that will transfer the aircraft to the vicinity of this reference family. The control commands fed to the autopilot (bank angle and load factor) consist of the reference controls plus correction terms which are linear combinations of the altitude and path-angle deviations from reference values, weighted by a set of precalculated gains. In this respect the proposed scheme resembles neighboring-optimal guidance. However, in contrast to the neighboring-optimal guidance scheme, the reference control and state variables as well as the feedback gains are stored as functions of energy and heading in the present approach. Some numerical results comparing open-loop optimal and approximate feedback solutions are presented.

  1. Co-operation processes in dynamic environment management: evolution through training experienced pilots in flying a highly automated aircraft.

    PubMed

    Rogalski, J

    1996-01-01

    Dynamic environment management (process control, aircraft piloting, etc.) increasingly implies collective work components. Pragmatic purposes as well as epistemological interests raise important questions on collective activities at work. In particular, linked to the technological evolution in flight management, the role of the 'collective fact' appears as a key point in reliability. Beyond the development of individual competencies, the quality of the 'distributed' crew activity has to be questioned. This paper presents an empirical study about how experienced pilots co-ordinate their information and actions during the last period of training on a highly automated cockpit. A task of disturbance management (engine fire during takeoff) is chosen as amplifying cognitive requirements. Analysis focuses on the transitions between the main task and the incident to be managed. Crew performance and co-operation between two pilots are compared in three occurrences of the same task: the results are coherent with the hypothesis of a parallel evolution of the crew performance and its internal co-operation, and show that prescribed explicit co-operation is more present on action than on information about the 'state of the world'. Methodological issues are discussed about the possible effects of the specific situation of training, and about the psychological meaning of the results. PMID:11540153

  2. Flight Demonstration of X-33 Vehicle Health Management System Components on the F/A-18 Systems Research Aircraft

    NASA Technical Reports Server (NTRS)

    Schweikhard, Keith A.; Richards, W. Lance; Theisen, John; Mouyos, William; Garbos, Raymond; Schkolnik, Gerald (Technical Monitor)

    1998-01-01

    The X-33 reusable launch vehicle demonstrator has identified the need to implement a vehicle health monitoring system that can acquire data that monitors system health and performance. Sanders, a Lockheed Martin Company, has designed and developed a commercial off-the-shelf (COTS)-based open architecture system that implements a number of technologies that have not been previously used in a flight environment. NASA Dryden Flight Research Center and Sanders teamed to demonstrate that the distributed remote health nodes, fiber optic distributed strain sensor, and fiber distributed data interface communications components of the X-33 vehicle health management (VHM) system could be successfully integrated and flown on a NASA F-18 aircraft. This paper briefly describes components of X-33 VHM architecture flown at Dryden and summarizes the integration and flight demonstration of these X-33 VHM components. Finally, it presents early results from the integration and flight efforts.

  3. Flight Demonstration of X-33 Vehicle Health Management System Components on the F/A-18 Systems Research Aircraft

    NASA Technical Reports Server (NTRS)

    Schweikhard, Keith A.; Richards, W. Lance; Theisen, John; Mouyos, William; Garbos, Raymond

    2001-01-01

    The X-33 reusable launch vehicle demonstrator has identified the need to implement a vehicle health monitoring system that can acquire data that monitors system health and performance. Sanders, a Lockheed Martin Company, has designed and developed a COTS-based open architecture system that implements a number of technologies that have not been previously used in a flight environment. NASA Dryden Flight Research Center and Sanders teamed to demonstrate that the distributed remote health nodes, fiber optic distributed strain sensor, and fiber distributed data interface communications components of the X-33 vehicle health management (VHM) system could be successfully integrated and flown on a NASA F-18 aircraft. This paper briefly describes components of X-33 VHM architecture flown at Dryden and summarizes the integration and flight demonstration of these X-33 VHM components. Finally, it presents early results from the integration and flight efforts.

  4. Propulsion Control and Health Management (PCHM) Technology for Flight Test on the C-17 T-1 Aircraft

    NASA Technical Reports Server (NTRS)

    Simon, Donald L.; Garg, Sanjay; Venti, Michael

    2004-01-01

    The C-I 7 T-l Globemaster III is an Air Force flight research vehicle located at Edwards Air Force Base. NASA Dryden and the C-17 System Program Office have entered into a Memorandum of Agreement to permit NASA the use of the C-I 7 T-I to conduct flight research on a mutually coordinated schedule. The C-17 Propulsion Control and Health Management (PCHM) Working Group was formed in order to foster discussion and coordinate planning amongst the various government agencies conducting PCHM research with a potential need for flight testing, and to communicate to the PCHM community the capabilities of the C-17 T-l aircraft to support such flight testing. This paper documents the output of this Working Group, including a summary of the candidate PCHM technologies identified and their associated benefits relative to NASA goals and objectives.

  5. Airborne Conflict Management within Confined Airspace in a Piloted Simulation of DAG-TM Autonomous Aircraft Operations

    NASA Technical Reports Server (NTRS)

    Barmore, Bryan; Johnson, Edward; Wing, David J.; Barhydt, Richard

    2003-01-01

    A human-in-the-loop experiment was performed at the NASA Langley Research Center to study the feasibility of Distributed Air/Ground Traffic Management (DAG-TM) autonomous aircraft operations in highly constrained airspace. The airspace was constrained by a pair of special use airspace (SUA) regions on either side of the pilot s planned route. The available airspace was further varied by changing the separation standard for lateral separation between 3 nm and 5 nm. The pilot had to maneuver through the corridor between the SUA s, avoid other traffic and meet flow management constraints. Traffic flow management (TFM) constraints were imposed as a required time of arrival and crossing altitude at an en route fix. This is a follow-up study to work presented at the 4th USA/Europe Air Traffic Management R&D Seminar in December 2001. Nearly all of the pilots were able to meet their TFM constraints while maintaining adequate separation from other traffic. In only 3 out of 59 runs were the pilots unable to meet their required time of arrival. Two loss of separation cases are studied and it is found that the pilots need conflict prevention information presented in a clearer manner. No degradation of performance or safety was seen between the wide and narrow corridors. Although this was not a thorough study of the consequences of reducing the en route lateral separation, nothing was found that would refute the feasibility of reducing the separation requirement from 5 nm to 3 nm. The creation of additional, second-generation conflicts is also investigated. Two resolution methods were offered to the pilots: strategic and tactical. The strategic method is a closed-loop alteration to the Flight Management System (FMS) active route that considers other traffic as well as TFM constraints. The tactical resolutions are short-term resolutions that leave avoiding other traffic conflicts and meeting the TFM constraints to the pilot. Those that made use of the strategic tools avoided

  6. Integration of On-Line and Off-Line Diagnostic Algorithms for Aircraft Engine Health Management

    NASA Technical Reports Server (NTRS)

    Kobayashi, Takahisa; Simon, Donald L.

    2007-01-01

    This paper investigates the integration of on-line and off-line diagnostic algorithms for aircraft gas turbine engines. The on-line diagnostic algorithm is designed for in-flight fault detection. It continuously monitors engine outputs for anomalous signatures induced by faults. The off-line diagnostic algorithm is designed to track engine health degradation over the lifetime of an engine. It estimates engine health degradation periodically over the course of the engine s life. The estimate generated by the off-line algorithm is used to update the on-line algorithm. Through this integration, the on-line algorithm becomes aware of engine health degradation, and its effectiveness to detect faults can be maintained while the engine continues to degrade. The benefit of this integration is investigated in a simulation environment using a nonlinear engine model.

  7. Aircraft Contrails

    NASA Technical Reports Server (NTRS)

    1992-01-01

    Captured in this scene is a series of aircraft contrails in a high traffic region over the northern Gulf of Mexico (27.0N, 85.5W). Contrails are caused by the hot engine exhaust of high flying aircraft interacting with moisture in the cold upper atmosphere and are common occurrances of high flying aircraft.

  8. Stress Corrosion Crack Detection on HU-25 Guardian Aircraft

    SciTech Connect

    Blackmon, R.; Huffman, J.; Mello, C.W.; Moore, D.G.; Walkington, P.D.

    1999-02-17

    Several ultrasonic inspection methods were developed at the Federal Aviation Administration's Airworthiness Assurance NDI Validation Center (AANC) to easily and rapidly detect hidden stress corrosion cracks in all vertical windshield posts on the US Coast Guard (USCG) HU-25 Guardian aircraft. The inspection procedure locates cracks as small as 2.0 millimeters emanating from internal fastener holes and determines their length. A test procedure was developed and a baseline assessment of the USCG fleet was conducted. Inspection results on twenty-five aircraft revealed a good correlation with results made during subsequent structural disassembly and visual inspection.

  9. Insect detection and nitrogen management for irrigated potatoes using remote sensing from small unmanned aircraft systems

    NASA Astrophysics Data System (ADS)

    Hunt, E. Raymond; Rondon, Silvia I.; Hamm, Philip B.; Turner, Robert W.; Bruce, Alan E.; Brungardt, Josh J.

    2016-05-01

    Remote sensing with small unmanned aircraft systems (sUAS) has potential applications in agriculture because low flight altitudes allow image acquisition at very high spatial resolution. We set up experiments at the Oregon State University Hermiston Agricultural Research and Extension Center with different platforms and sensors to assess advantages and disadvantages of sUAS for precision farming. In 2013, we conducted an experiment with 4 levels of N fertilizer, and followed the changes in the normalized difference vegetation index (NDVI) over time. In late June, there were no differences in chlorophyll content or leaf area index (LAI) among the 3 higher application rates. Consistent with the field data, only plots with the lowest rate of applied N were distinguished by low NDVI. In early August, N deficiency was determined by NDVI, but it was too late to mitigate losses in potato yield and quality. Populations of the Colorado potato beetle (CPB) may rapidly increase, devouring the shoots, thus early detection and treatment could prevent yield losses. In 2014, we conducted an experiment with 4 levels of CPB infestation. Over one day, damage from CPB in some plots increased from 0 to 19%. A visual ranking of damage was not correlated with the total number of CPB or treatment. Plot-scale vegetation indices were not correlated with damage, although the damaged area determined by object-based feature extraction was highly correlated. Methods based on object-based image analysis of sUAS data have potential for early detection and reduced cost.

  10. 41 CFR 102-33.45 - What is a Government aircraft?

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ... aircraft? 102-33.45 Section 102-33.45 Public Contracts and Property Management Federal Property Management... AIRCRAFT Acquiring Government Aircraft and Aircraft Parts Overview § 102-33.45 What is a Government aircraft? A Government aircraft is one that is operated for the exclusive use of an executive agency and...

  11. 41 CFR 102-33.45 - What is a Government aircraft?

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... aircraft? 102-33.45 Section 102-33.45 Public Contracts and Property Management Federal Property Management... AIRCRAFT Acquiring Government Aircraft and Aircraft Parts Overview § 102-33.45 What is a Government aircraft? A Government aircraft is one that is operated for the exclusive use of an executive agency and...

  12. 41 CFR 102-33.45 - What is a Government aircraft?

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... aircraft? 102-33.45 Section 102-33.45 Public Contracts and Property Management Federal Property Management... AIRCRAFT Acquiring Government Aircraft and Aircraft Parts Overview § 102-33.45 What is a Government aircraft? A Government aircraft is one that is operated for the exclusive use of an executive agency and...

  13. 75 FR 66653 - Airworthiness Directives; McDonnell Douglas Corporation Model MD-90-30 Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-10-29

    ...-200-AD; Amendment 39-16483; AD 2010-22-04] RIN 2120-AA64 Airworthiness Directives; McDonnell Douglas...: Data & Services Management, 3855 Lakewood Boulevard, MC D800 0019, Long Beach, California 90846- 0001...) 2008-18-10, amendment 39-15667 (73 FR 52203, September 9, 2008). That AD applies to the...

  14. 75 FR 80742 - Airworthiness Directives; McDonnell Douglas Corporation Model MD-90-30 Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-12-23

    ... Federal Aviation Administration 14 CFR Part 39 RIN 2120-AA64 Airworthiness Directives; McDonnell Douglas...: Data & Services Management, 3855 Lakewood Boulevard, MC D800-0019, Long Beach, California 90846- 0001... stabilizer in accordance with AD 2007-10-04, Amendment 39-15045 (72 FR 25960, May 8, 2007). That airplane...

  15. 76 FR 41647 - Airworthiness Directives; Lockheed Martin Corporation/Lockheed Martin Aeronautics Company Model...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-07-15

    ... of a certain other publication listed in this AD as of November 3, 2008 (73 FR 56464, dated September... Corporation/Lockheed Martin Aeronautics Company, Airworthiness Office, Dept. 6A0M, Zone 0252, Column P-58, 86... person at the Docket Management Facility between 9 a.m. and 5 p.m., Monday through Friday, except...

  16. 76 FR 64003 - Airworthiness Directives; WYTWORNIA SPRZETU KOMUNIKACYJNEGO (WSK) “PZL-RZESZOW”-SPOLKA AKCYJNA...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-10-17

    ...: Airworthiness Directive 2011-18-07, Amendment 39-16789 (76 FR 57900, September 19, 2011), currently requires a... Certification Office, FAA, Engine & Propeller Directorate, 12 New England Executive Park, Burlington, MA 01803..., Massachusetts, on October 4, 2011. Peter A. White, Manager, Engine and Propeller Directorate,...

  17. 76 FR 41142 - Special Conditions; Cessna Aircraft Company Model M680 Airplane; Lithium-ion Battery Installations

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-07-13

    ... Aircraft Company Model M680 Airplane; Lithium-ion Battery Installations AGENCY: Federal Aviation... design feature associated with Lithium-ion batteries. The applicable airworthiness regulations do not...) T00012WI for installation of Lithium-ion batteries in the Model 680. The Model 680 is a twin-engine,...

  18. 77 FR 66762 - Airworthiness Directives; Airbus Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-11-07

    ... 12866; 2. Is not a ``significant rule'' under the DOT Regulatory Policies and Procedures (44 FR 11034... information identified in this proposed AD, contact Airbus SAS--EAW (Airworthiness Office), 1 Rond Point... this AD, contact Airbus SAS--EAW (Airworthiness Office), 1 Rond Point Maurice Bellonte, 31707...

  19. 77 FR 66760 - Airworthiness Directives; Airbus Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-11-07

    ... Policies and Procedures (44 FR 11034, February 26, 1979); 3. Will not affect intrastate aviation in Alaska... information identified in this proposed AD, contact Airbus SAS--Airworthiness Office--EAL, 1 Rond Point.... (2) For service information identified in this AD, contact Airbus SAS--Airworthiness Office--EAL,...

  20. 77 FR 69391 - Airworthiness Directives; Airbus Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-11-19

    ... Policies and Procedures (44 FR 11034, February 26, 1979); 3. Will not affect intrastate aviation in Alaska..., contact Airbus SAS--EAW (Airworthiness Office), 1 Rond Point Maurice Bellonte, 31707 Blagnac Cedex, France... information. (2) For service information identified in this AD, contact Airbus SAS-EAW (Airworthiness...

  1. 78 FR 78294 - Airworthiness Directives; Airbus Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-12-26

    ... 12866; 2. Is not a ``significant rule'' under the DOT Regulatory Policies and Procedures (44 FR 11034... holidays. For service information identified in this proposed AD, contact Airbus SAS, Airworthiness Office...-1031. (2) For service information identified in this AD, contact Airbus SAS, Airworthiness...

  2. 77 FR 40830 - Airworthiness Directives; Airbus Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-07-11

    ... 12866; 2. Is not a ``significant rule'' under the DOT Regulatory Policies and Procedures (44 FR 11034..., contact Airbus SAS--Airworthiness Office--EAL, 1 Rond Point Maurice Bellonte, 31707 Blagnac Cedex, France..., contact Airbus SAS--Airworthiness Office--EAL, 1 Rond Point Maurice Bellonte, 31707 Blagnac Cedex,...

  3. 77 FR 58789 - Airworthiness Directives; Airbus Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-09-24

    ... Policies and Procedures (44 FR 11034, February 26, 1979); 3. Will not affect intrastate aviation in Alaska... this proposed AD, contact Airbus SAS--Airworthiness Office--EAL, 1 Rond Point Maurice Bellonte, 31707..., contact Airbus SAS--Airworthiness Office--EAL, 1 Rond Point Maurice Bellonte, 31707 Blagnac Cedex,...

  4. Crack detection on HC-130H aircraft using low frequency eddy current

    SciTech Connect

    Moore, D.G.; Mihelic, J.E.; Barnes, J.D.

    1998-02-01

    An eddy current inspection method was developed at the Federal Aviation Administration`s Airworthiness Assurance NDI Validation Center (AANC) to easily and rapidly detect subsurface fatigue cracks in the wheel well fairing on the US Coast Guard (USCG) HC-130H aircraft caused by fatigue. The inspection procedure locates cracks as small as 10.2 millimeters in length at 2.54 mm below the skin surface at raised fastener sites. The test procedure developed baseline three USCG aircraft. Inspection results on the three aircraft reveals good correlation with results made during subsequent structural disassembly.

  5. Research on the Application of Life Cycle Cost Management in the Civil Aircraft Assembly Line Project

    NASA Astrophysics Data System (ADS)

    Dawei, Lian; Xuefeng, Zhao

    Based on the investigation of airplane enterprises, the paper defines the life cycle of the airplane's assembly line in a reasonable way. It takes the model of project list in the stage of bidding to make it more actual. Regarding the airplane's assembly line, it also applies the equipments life cycle management theory into the using stage so that we can control the using cost more effectively. The paper uses the Crystal Ball to analyze the risk factors of the airplane's assembly line and improves the investment budget's accuracy.

  6. 14 CFR 91.1109 - Aircraft maintenance: Inspection program.

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ... 14 Aeronautics and Space 2 2014-01-01 2014-01-01 false Aircraft maintenance: Inspection program... Ownership Operations Program Management § 91.1109 Aircraft maintenance: Inspection program. Each program manager must establish an aircraft inspection program for each make and model program aircraft and...

  7. 14 CFR 91.1109 - Aircraft maintenance: Inspection program.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... 14 Aeronautics and Space 2 2011-01-01 2011-01-01 false Aircraft maintenance: Inspection program... Ownership Operations Program Management § 91.1109 Aircraft maintenance: Inspection program. Each program manager must establish an aircraft inspection program for each make and model program aircraft and...

  8. 14 CFR 91.1109 - Aircraft maintenance: Inspection program.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... 14 Aeronautics and Space 2 2010-01-01 2010-01-01 false Aircraft maintenance: Inspection program... Ownership Operations Program Management § 91.1109 Aircraft maintenance: Inspection program. Each program manager must establish an aircraft inspection program for each make and model program aircraft and...

  9. 14 CFR 91.1041 - Aircraft proving and validation tests.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... 14 Aeronautics and Space 2 2011-01-01 2011-01-01 false Aircraft proving and validation tests. 91... Ownership Operations Program Management § 91.1041 Aircraft proving and validation tests. (a) No program manager may permit the operation of an aircraft, other than a turbojet aircraft, for which two pilots...

  10. 14 CFR 91.1109 - Aircraft maintenance: Inspection program.

    Code of Federal Regulations, 2012 CFR

    2012-01-01

    ... 14 Aeronautics and Space 2 2012-01-01 2012-01-01 false Aircraft maintenance: Inspection program... Ownership Operations Program Management § 91.1109 Aircraft maintenance: Inspection program. Each program manager must establish an aircraft inspection program for each make and model program aircraft and...

  11. 14 CFR 91.1041 - Aircraft proving and validation tests.

    Code of Federal Regulations, 2013 CFR

    2013-01-01

    ... 14 Aeronautics and Space 2 2013-01-01 2013-01-01 false Aircraft proving and validation tests. 91... Ownership Operations Program Management § 91.1041 Aircraft proving and validation tests. (a) No program manager may permit the operation of an aircraft, other than a turbojet aircraft, for which two pilots...

  12. 14 CFR 91.1109 - Aircraft maintenance: Inspection program.

    Code of Federal Regulations, 2013 CFR

    2013-01-01

    ... 14 Aeronautics and Space 2 2013-01-01 2013-01-01 false Aircraft maintenance: Inspection program... Ownership Operations Program Management § 91.1109 Aircraft maintenance: Inspection program. Each program manager must establish an aircraft inspection program for each make and model program aircraft and...

  13. Aircraft Design

    NASA Technical Reports Server (NTRS)

    Bowers, Albion H. (Inventor); Uden, Edward (Inventor)

    2016-01-01

    The present invention is an aircraft wing design that creates a bell shaped span load, which results in a negative induced drag (induced thrust) on the outer portion of the wing; such a design obviates the need for rudder control of an aircraft.

  14. Risk factors, health risks, and risk management for aircraft personnel and frequent flyers.

    PubMed

    Kim, Jeoum Nam; Lee, Byung Mu

    2007-01-01

    Health risks associated with long periods of time in flight are of concern to astronauts, crew members, and passengers. Many epidemiological studies showed that occupational and frequent flyers may be susceptible to ocular, cardiovascular, neurological, pulmonary, gastrointestinal, sensory, immunological, physiological, and even developmental disorders. In addition, the incidences of cancer and food poisoning are expected to be higher in such individuals. This article reviews health risks and risk factors associated with air travel, and discusses risk management strategies. To reduce adverse health risks, risk factors such as radiation, infection, stress, temperature, pressure, and circadian rhythm need to be avoided or reduced to levels that are as low as technologically achievable to protect flight personnel and passengers.

  15. Risk factors, health risks, and risk management for aircraft personnel and frequent flyers.

    PubMed

    Kim, Jeoum Nam; Lee, Byung Mu

    2007-01-01

    Health risks associated with long periods of time in flight are of concern to astronauts, crew members, and passengers. Many epidemiological studies showed that occupational and frequent flyers may be susceptible to ocular, cardiovascular, neurological, pulmonary, gastrointestinal, sensory, immunological, physiological, and even developmental disorders. In addition, the incidences of cancer and food poisoning are expected to be higher in such individuals. This article reviews health risks and risk factors associated with air travel, and discusses risk management strategies. To reduce adverse health risks, risk factors such as radiation, infection, stress, temperature, pressure, and circadian rhythm need to be avoided or reduced to levels that are as low as technologically achievable to protect flight personnel and passengers. PMID:17454553

  16. Scheduling of an aircraft fleet

    NASA Technical Reports Server (NTRS)

    Paltrinieri, Massimo; Momigliano, Alberto; Torquati, Franco

    1992-01-01

    Scheduling is the task of assigning resources to operations. When the resources are mobile vehicles, they describe routes through the served stations. To emphasize such aspect, this problem is usually referred to as the routing problem. In particular, if vehicles are aircraft and stations are airports, the problem is known as aircraft routing. This paper describes the solution to such a problem developed in OMAR (Operative Management of Aircraft Routing), a system implemented by Bull HN for Alitalia. In our approach, aircraft routing is viewed as a Constraint Satisfaction Problem. The solving strategy combines network consistency and tree search techniques.

  17. Aircraft scanner data availability via the version 0 Information Management System

    NASA Technical Reports Server (NTRS)

    Mah, G. R.

    1995-01-01

    As part of the Earth Observing System Data and Information System (EOSDIS) development, NASA and other government agencies have developed an operational prototype of the Information Management System (IMS). The IMS provides access to the data archived at the Distributed Active Archive Centers (DAAC's) that allows users to search through metadata describing the (image) data. Criteria based on sensor name or type, date and time, and geographic location are used to search the archive. Graphical representations of coverage and browse images are available to further refine a user's selection. previously, the EROS Data Center (EDC) DAAC had identified the Advanced SOlid-state Array Spectrometer (ASAS), Airborne Visible and infrared Imaging Spectrometer (AVIRIS), NS-001, and Thermal Infrared Multispectral Scanner (TIMS) as precursor data sets similar to those the DAAC will handle in the Earth Observing System era. Currently, the EDC DAAC staff, in cooperation with NASA, has transcribed TIMS, NS-001, and Thematic Mapper Simulation (TMS) data from Ames Research Center and also TIMS data from Stennis Space Center. During the transcription process, the IMS metadata and browse images were created to populate the inventory at the EDC DAAC. These data sets are now available in the IMS and may be requested from the any of the DAAC's via the IMS.

  18. Design and simulation of a fuel cell hybrid emergency power system for a more electric aircraft: Evaluation of energy management schemes

    NASA Astrophysics Data System (ADS)

    Njoya Motapon, Souleman

    As the aircraft industries are moving toward more electric aircraft (MEA), the electrical peak load seen by the main and emergency generators becomes higher than in conventional aircraft. Consequently, there is a major concern regarding the aircraft emergency system, which consists of a ram air turbine (RAT) or air driven generator (ADG), to fulfill the load demand during critical situations; particularly at low aircraft speed where the output power is very low. A potential solution under study by most aircraft manufacturers is to replace the air turbine by a fuel cell hybrid system, consisting of fuel cell combined with other high power density sources such as supercapacitors or lithium-ion batteries. To ensure the fuel cell hybrid system will be able to meet the load demand, it must be properly designed and an effective energy management strategy must be tested with real situations load profile. This work aims at designing a fuel cell emergency power system of a more electric aircraft and comparing different energy management schemes (EMS); with the goal to ensure the load demand is fully satisfied within the constraints of each energy source. The fuel cell hybrid system considered in this study consists of fuel cell, lithium-ion batteries and supercapacitors, along with associated DC-DC and DC-AC converters. The energy management schemes addressed are state-of-the-art, most commonly used energy management techniques in fuel cell vehicle applications and include: the state machine control strategy, the rule based fuzzy logic strategy, the classical PI control strategy, the frequency decoupling/fuzzy logic control strategy and the equivalent consumption minimization strategy (ECMS). Moreover, a new optimal scheme based on maximizing the instantaneous energy of batteries/supercapacitors, to improve the fuel economy is proposed. An off-line optimization based scheme is also developed to ascertain the validity of the proposed strategy in terms of fuel consumption

  19. SILHIL Replication of Electric Aircraft Powertrain Dynamics and Inner-Loop Control for V&V of System Health Management Routines

    NASA Technical Reports Server (NTRS)

    Bole, Brian; Teubert, Christopher Allen; Cuong Chi, Quach; Hogge, Edward; Vazquez, Sixto; Goebel, Kai; George, Vachtsevanos

    2013-01-01

    Software-in-the-loop and Hardware-in-the-loop testing of failure prognostics and decision making tools for aircraft systems will facilitate more comprehensive and cost-effective testing than what is practical to conduct with flight tests. A framework is described for the offline recreation of dynamic loads on simulated or physical aircraft powertrain components based on a real-time simulation of airframe dynamics running on a flight simulator, an inner-loop flight control policy executed by either an autopilot routine or a human pilot, and a supervisory fault management control policy. The creation of an offline framework for verifying and validating supervisory failure prognostics and decision making routines is described for the example of battery charge depletion failure scenarios onboard a prototype electric unmanned aerial vehicle.

  20. 78 FR 21578 - Airworthiness Directives; General Electric Company Turbofan Engines

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-04-11

    ... Federal Aviation Administration 14 CFR Part 39 RIN 2120-AA64 Airworthiness Directives; General Electric... rulemaking (NPRM). SUMMARY: We propose to adopt a new airworthiness directive (AD) for all General Electric... FAA amends Sec. 39.13 by adding the following new airworthiness directive (AD): General...

  1. 14 CFR 21.269 - Export airworthiness approvals.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... 14 Aeronautics and Space 1 2010-01-01 2010-01-01 false Export airworthiness approvals. 21.269 Section 21.269 Aeronautics and Space FEDERAL AVIATION ADMINISTRATION, DEPARTMENT OF TRANSPORTATION....269 Export airworthiness approvals. The manufacturer may issue export airworthiness approvals....

  2. 41 CFR 102-33.210 - How do we account for the use of our Government aircraft?

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... aircraft? To account for the use of Government aircraft, you must document all flights and keep this... the use of our Government aircraft? 102-33.210 Section 102-33.210 Public Contracts and Property... PROPERTY 33-MANAGEMENT OF GOVERNMENT AIRCRAFT Managing Government Aircraft and Aircraft Parts...

  3. 76 FR 81884 - Airworthiness Directives; Airbus Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-12-29

    ... Regulatory Policies and Procedures (44 FR 11034, February 26, 1979); and 3. Will not have a significant... this proposed AD, contact Airbus SAS--Airworthiness Office--EAL, 1 Rond Point Maurice Bellonte,...

  4. 41 CFR 102-33.60 - What methods may we use to acquire Government aircraft?

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ...); (j) Lease or lease-purchase; (k) Rent or charter; (l) Contract for full services (i.e., aircraft plus... to acquire Government aircraft? 102-33.60 Section 102-33.60 Public Contracts and Property Management... 33-MANAGEMENT OF GOVERNMENT AIRCRAFT Acquiring Government Aircraft and Aircraft Parts Overview §...

  5. 41 CFR 102-33.60 - What methods may we use to acquire Government aircraft?

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ...); (j) Lease or lease-purchase; (k) Rent or charter; (l) Contract for full services (i.e., aircraft plus... to acquire Government aircraft? 102-33.60 Section 102-33.60 Public Contracts and Property Management... 33-MANAGEMENT OF GOVERNMENT AIRCRAFT Acquiring Government Aircraft and Aircraft Parts Overview §...

  6. 77 FR 52205 - Airworthiness Directives; Univair Aircraft Corporation Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-08-29

    ... (NPRM) to amend 14 CFR part 39 to supersede AD 52-02-02 (21 FR 9447, December 4, 1956). That AD applies to the specified products. The NPRM published in the Federal Register on April 14, 2011 (76 FR 20894... the proposal (76 FR 20894, April 14, 2011) and the FAA's response to each comment. Request To...

  7. 77 FR 2238 - Airworthiness Directives; Pilatus Aircraft Ltd. Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-01-17

    ... (44 FR 11034, February 26, 1979), (3) Will not affect intrastate aviation in Alaska, and (4) Will not...-6/A, PC-6/A-H1, PC-6/A-H2, PC-6/B-H2, PC-6/B1- H2, PC-6/B2-H2, PC-6/B2-H4, PC-6/C-H2, and PC-6/C1-H2..., PC-6/A, PC-6/A-Hl, PC- 6/A-H2, PC-6/B-H2, PC-6/Bl-H2, PC-6/B2-H2, PC-6/B2-H4, PC-6/C-H2, and...

  8. 78 FR 49221 - Airworthiness Directives; Piper Aircraft, Inc. Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-08-13

    ... proposed AD. Discussion On December 16, 1999, we issued AD 99-26-19, Amendment 39-11479 (64 FR 72524... airplanes were inadvertently omitted from the applicability of AD 99-01-05, Amendment 39-10972 (63 FR 72132... FR 29965, May 25, 1993), which previously included J-2 series airplanes in the Applicability...

  9. 77 FR 18969 - Airworthiness Directives; Sikorsky Aircraft Corporation Helicopters

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-03-29

    ... the windshield that resulted in unintended movement of the engine control levers from the forward position and towards the flight-idle position, which reduced power on both engines. These actions are...'' position toward the ``IDLE'' position. Unintended in-flight movement of the ECLs from the ``FLY''...

  10. 78 FR 20227 - Airworthiness Directives; Cessna Aircraft Company Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-04-04

    ... to revise AD 2004-21-08, amendment 39-13828 (69 FR 62396, October 26, 2004). That AD applies to the specified products. The NPRM published in the Federal Register on January 8, 2013 (78 FR 1155). That NPRM... public the opportunity to participate in developing this AD. We received no comments on the NPRM (78...

  11. 78 FR 1155 - Airworthiness Directives; Cessna Aircraft Company Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-01-08

    ... 2004-21-08, amendment 39-13828 (69 FR 62396, October 26, 2004), for all Cessna Models 190, 195 (L- 126A... terminate the need for the repetitive inspections. AD 2004-21-08 (69 FR 62396, October 26, 2004) resulted... is known to be susceptible to corrosion. We issued AD 2004-21-08 (69 FR 62396, October 26, 2004)...

  12. 77 FR 21402 - Airworthiness Directives; Sikorsky Aircraft Corporation Helicopters

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-04-10

    ... nicholas.faust@faa.gov . SUPPLEMENTARY INFORMATION: Discussion On October 26, 2011, at 76 FR 66209, the... 12866; (2) Is not a ``significant rule'' under DOT Regulatory Policies and Procedures (44 FR 11034...) manufactured with mislocated aluminum wire mesh, leaving portions of the graphite torque tube (spar)...

  13. 77 FR 42455 - Airworthiness Directives; Piper Aircraft, Inc. Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-07-19

    ... airplane's wing root, is not at a high risk of an inadvertent in-flight engine shutdown and loss of flight... operators Relocate the magneto switch from the 3.5 work-hours x $85 $125 $422.50 $124,637.50 port side... and Procedures (44 FR 11034, February 26, 1979), (3) Will not affect intrastate aviation in...

  14. 78 FR 17591 - Airworthiness Directives; Sikorsky Aircraft Corporation Helicopters

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-03-22

    ... INFORMATION: Discussion On February 3, 2012, at 77 FR 5418, the Federal Register published our notice of... at a critical phase of flight, and loss of control of the helicopter. Comments After our NPRM (77 FR... the proposed rule (77 FR 5418, February 3, 2012) be changed to include both nominal and...

  15. 78 FR 51121 - Airworthiness Directives; Piper Aircraft, Inc.

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-08-20

    ... 71-21-08, Amendment 39-1312 (36 FR 19572, October 8, 1971) currently requires replacement of the fuel... proposed AD. Discussion On September 29, 1971, we issued AD 71-21-08, Amendment 39-1312 (36 FR 19572..., Amendment 39-1312 (36 FR 19572, October 8, 1971), a safety event in 2011 caused the loss of a Model PA-...

  16. 77 FR 65148 - Airworthiness Directives; Intertechnique Aircraft Systems

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-10-25

    ... rule'' under the DOT Regulatory Policies and Procedures (44 FR 11034, February 26, 1979); 3. Will not... further information by examining the MCAI in the AD docket. Relevant Service Information Zodiac...

  17. 77 FR 42225 - Airworthiness Directives; PILATUS AIRCRAFT LTD. Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-07-18

    ...-13, Amendment 39-15963 (74 FR 34213, July 15, 2009). That AD required actions intended to address an unsafe condition on the products listed above. Since we issued AD 2009-14-13, Amendment 39-15963 (74 FR... Procedures (44 FR 11034, February 26, 1979), (3) Will not affect intrastate aviation in Alaska, and (4)...

  18. 78 FR 67011 - Airworthiness Directives; PILATUS Aircraft Ltd. Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-11-08

    ... ``significant rule'' under the DOT Regulatory Policies and Procedures (44 FR 11034, February 26, 1979), ] (3... approved AMOC on any airplane to which the AMOC applies, notify your appropriate principal inspector (PI) in the FAA Flight Standards District Office (FSDO), or lacking a PI, your local FSDO. (2)...

  19. 78 FR 41277 - Airworthiness Directives; Piper Aircraft, Inc. Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-07-10

    ... ``significant rule'' under DOT Regulatory Policies and Procedures (44 FR 11034, February 26, 1979), (3) Will not... inspection may be delegated to an appropriately certified mechanic. (2) Flights must be limited to...

  20. 77 FR 72778 - Airworthiness Directives; Cessna Aircraft Company Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-12-06

    ... in the Federal Register on August 22, 2012 (77 FR 50644). That NPRM proposed to require inspection of... brushes. Actions Since Previous NPRM Was Issued Since we issued the previous NPRM (77 FR 50644, August 22... public the opportunity to comment on the previous NPRM (77 FR 50644, August 22, 2012). The...

  1. 78 FR 24343 - Airworthiness Directives; Cessna Aircraft Company Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-04-25

    ... apply to the specified products. That SNPRM published in the Federal Register on December 6, 2012 (77 FR 72778). The original NPRM (77 FR 50644, August 22, 2012) proposed to require inspection of the number of... with the intent that was proposed in the SNPRM (77 FR 72778, December 6, 2012) for correcting...

  2. 77 FR 37827 - Airworthiness Directives; The Cessna Aircraft Company Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-06-25

    ... Rulemaking On January 28, 2011, we issued AD 2011-03-16, Amendment 39-16600 (76 FR 8607, February 15, 2011... Policies and Procedures (44 FR 11034, February 26, 1979), (3) Will not affect intrastate aviation in Alaska...) generator overvoltage events. This proposed AD would require replacing the auxiliary power unit...

  3. 77 FR 57994 - Airworthiness Directives; The Cessna Aircraft Company Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-09-19

    ... published in the Federal Register on June 25, 2012 (77 FR 37827). That NPRM proposed to require replacing... opportunity to participate in developing this AD. We received no comments on the NPRM (77 FR 37827, June 25... 12866, (2) Is not a ``significant rule'' under DOT Regulatory Policies and Procedures (44 FR...

  4. 78 FR 67009 - Airworthiness Directives; Sikorsky Aircraft Corporation (Sikorsky) Helicopters

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-11-08

    ... & Propeller Directorate, 12 New England Executive Park, Burlington, Massachusetts 01803; telephone (781) 238-7763; email nicholas.faust@faa.gov . SUPPLEMENTARY INFORMATION: Discussion On June 20, 2013, at 78 FR... opportunity to participate in developing this AD, but we did not receive any comments on the NPRM (78 FR...

  5. 77 FR 49710 - Airworthiness Directives; Sikorsky Aircraft Corporation Helicopters

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-08-17

    ... relating to the ERB on this and similar model helicopters. AD 82-17-03, issued July 30, 1982 (47 FR 35469... July 30, 1981). AD 2003-04-15, issued February 14, 2003 (68 FR 8994, February 27, 2003), requires... October 26, 2011, at 76 FR 66205, the Federal Register published our notice of proposed rulemaking...

  6. 77 FR 69742 - Airworthiness Directives; Cessna Aircraft Company Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-11-21

    .... That SNPRM published in the Federal Register on August 23, 2012 (77 FR 50954). The original NPRM (75 FR... of the flap control system. The SNPRM (77 FR 50954, August 23, 2012) proposed to incorporate... this AD. We received no comments on the SNPRM (77 FR 50954, August 23, 2012) or on the determination...

  7. 78 FR 57104 - Airworthiness Directives; Diamond Aircraft Industries Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-09-17

    ... Regulatory Policies and Procedures (44 FR 11034, February 26, 1979), (3) Will not affect intrastate aviation... Model DA 40 airplanes, serial numbers 40.006 through 40.009, 40.011 through 40.1071, and 40.1073...

  8. The 1991 International Conference on Aging Aircraft and Structural Airworthiness

    NASA Technical Reports Server (NTRS)

    Harris, Charles E. (Editor)

    1992-01-01

    Technical sessions of the conference included structural performance, nondestructive evaluation, maintenance and repair, international activities, and commuter airlines. Each session was organized to provide a well-rounded view of the subject from the industry, regulatory, and research perspective. Thirty-four presentations were given by the international technical community.

  9. 77 FR 5418 - Airworthiness Directives; Sikorsky Aircraft Corporation Helicopters

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-02-03

    ...'' under the DOT Regulatory Policies and Procedures (44 FR 11034, February 26, 1979); 3. Will not affect... aft fuel system 40 micron fuel filter element with a 10 micron fuel filter element. This proposed AD... fuel filter element, part number (P/N) 52-0505-2 or 52-01064-1. This proposed AD would...

  10. 78 FR 32349 - Airworthiness Directives; Cessna Aircraft Company Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-05-30

    ... Register on February 11, 2013 (78 FR 9636). The original NPRM (77 FR 59146, September 26, 2012) proposed to... received no comments on the SNPRM (78 FR 9636, February 11, 2013) or on the determination of the cost to... these minor changes: Are consistent with the intent that was proposed in the SNPRM (78 FR 9636,...

  11. 78 FR 9636 - Airworthiness Directives; Cessna Aircraft Company Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-02-11

    ... Federal Register on September 26, 2012 (77 FR 59146). That NPRM proposed to require an inspection to... conditioner; and return of replaced brushes to Cessna. Actions Since Previous NPRM (77 FR 59146, September 26, 2012) Was Issued Since we issued the previous NPRM (77 FR 59146, September 26, 2012), Cessna...

  12. 78 FR 76040 - Airworthiness Directives; Piper Aircraft, Inc. Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-12-16

    ... this AD as of February 14, 2000 (64 FR 72524, December 28, 1999). ADDRESSES: For service information... (NPRM) to amend 14 CFR part 39 to revise AD 99-26-19, Amendment 39-11479 (64 FR 72524, December 28, 1999... Register on August 13, 2013 (78 FR 49221). The NPRM proposed to retain all requirements of AD...

  13. 77 FR 41889 - Airworthiness Directives; Sikorsky Aircraft Corporation Helicopters

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-07-17

    ... Office, Engine & Propeller Directorate, FAA, 12 New England Executive Park, Burlington, MA 01803...'' under DOT Regulatory Policies and Procedures (44 FR 11034, February 26, 1979); 3. Will not affect..., Engine & Propeller Directorate, FAA, 12 New England Executive Park, Burlington, MA 01803; telephone...

  14. 78 FR 7642 - Airworthiness Directives; Piper Aircraft, Inc.

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-02-04

    ... FR 45979). That NPRM proposed to require inspections of the stabilator control system and replacement... assembly failures that may lead to failure of the horizontal stabilator control system and could result in loss of pitch control. This AD requires inspections of the stabilator control system and replacement...

  15. 78 FR 72598 - Airworthiness Directives; British Aerospace Regional Aircraft Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-12-03

    ... Procedures (44 FR 11034, February 26, 1979), (3) Will not affect intrastate aviation in Alaska, and (4) Will... product. The MCAI describes the unsafe condition as stress corrosion cracking of the main landing gear.... The subsequent investigation revealed stress corrosion cracking of the MLG yoke pintle housing as...

  16. 77 FR 60062 - Airworthiness Directives; Cessna Aircraft Company Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-10-02

    .... The existing AD currently requires an inspection of the engine oil pressure switch and, if applicable, replacement of the engine oil pressure switch. Since we issued that AD, we have received new reports of internal failure of the engine oil pressure switch, which could result in complete loss of engine oil...

  17. 78 FR 38552 - Airworthiness Directives; Cessna Aircraft Company Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-06-27

    ... Component (JASC)/Air Transport Association (ATA) of America Code 7931, Engine Oil Pressure. (e) Unsafe... the engine oil pressure switch and, if applicable, replacement of the engine oil pressure switch. This... engine oil pressure switch, and requires replacement when the engine oil pressure switch reaches its...

  18. 77 FR 26156 - Airworthiness Directives; Cessna Aircraft Company Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-05-03

    ... 19, 2012 (77 FR 2659). That NPRM proposed to require an inspection of the torque lug and surrounding... comments on the NPRM (77 FR 2659, January 19, 2012) or on the determination of the cost to the public... of the NPRM (77 FR 2659, January 19, 2012) as paragraph (h) of this final rule. We also revised...

  19. 77 FR 50054 - Airworthiness Directives; Cessna Aircraft Company Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-08-20

    ... receive about this proposed AD. Discussion In January 2012, we issued AD 2012-02-02 (77 FR 6003, February... 172S airplanes that have installed an engine fuel return system modification kit. AD 2012-02-02 (77 FR... Procedures (44 FR 11034, February 26, 1979), (3) Will not affect intrastate aviation in Alaska and (4)...

  20. 78 FR 9789 - Airworthiness Directives; Schweizer Aircraft Corporation

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-02-12

    ..., 2012, at 77 FR 34281, the Federal Register published our notice of proposed rulemaking (NPRM), which... NPRM (77 FR 34281, June 11, 2012). FAA's Determination We have reviewed the relevant information and... ``significant rule'' under DOT Regulatory Policies and Procedures (44 FR 11034, February 26, 1979); (3) Will...

  1. 77 FR 68057 - Airworthiness Directives; Sikorsky Aircraft Corporation Helicopters

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-11-15

    ...: Discussion On March 29, 2012, at 77 FR 18969, the Federal Register published our notice of proposed... Safety Board, commented that they support the NPRM (77 FR 18969, March 29, 2012). FAA's Determination We... Policies and Procedures (44 FR 11034, February 26, 1979); (3) Will not affect intrastate aviation in...

  2. 78 FR 41285 - Airworthiness Directives; Pilatus Aircraft Ltd. Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-07-10

    ... to the specified products. The NPRM was published in the Federal Register on April 26, 2013 (78 FR... participate in developing this AD. We received no comments on the NPRM (78 FR 24689, April 26, 2013) or on the... (78 FR 24689, April 26, 2013) for correcting the unsafe condition; and Do not add any...

  3. 76 FR 70379 - Airworthiness Directives; Cessna Aircraft Company Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-11-14

    .... Discussion On January 22, 2008, we issued AD 2008-03-02, Amendment 39-15351 (73 FR 5737, January 31, 2008... Issued Since we issued AD 2008-03-02 (73 FR 5737, January 31, 2008), we received a field report of a fuel... (73 FR 5737, January 31, 2008). This proposed AD would add airplanes to the applicability statement...

  4. 76 FR 64793 - Airworthiness Directives; Diamond Aircraft Industries Powered Sailplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-10-19

    ... Register on August 8, 2011 (76 FR 48047). That NPRM proposed to correct an unsafe condition for the.... We received no comments on the NPRM (76 FR 48047, August 8, 2011) or on the determination of the cost...'' under DOT Regulatory Policies and Procedures (44 FR 11034, February 26, 1979); and (3) Will not have...

  5. 78 FR 60656 - Airworthiness Directives; Sikorsky Aircraft Corporation Helicopters

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-10-02

    ...@faa.gov . SUPPLEMENTARY INFORMATION: Discussion On April 22, 2013, at 78 FR 23698, the Federal... opportunity to participate in developing this AD, but we received no comments on the NPRM (78 FR 23698, April... Executive Order 12866; (2) Is not a ``significant rule'' under DOT Regulatory Policies and Procedures (44...

  6. 76 FR 60367 - Airworthiness Directives; Piper Aircraft, Inc. Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-09-29

    ... AD as of July 24, 2009 (74 FR 29118, June 19, 2009). ADDRESSES: For service information identified in... 14 CFR part 39 to revise AD 2009-13-06, amendment 39-15944 (74 FR 29118, June 19, 2009). That AD applies to the specified products. The NPRM published in the Federal Register on May 20, 2011 (76 FR...

  7. 77 FR 16432 - Airworthiness Directives; Cessna Aircraft Company Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-03-21

    ... NPRM was published in the Federal Register on December 30, 2011 (76 FR 82205). That NPRM proposed to... received. The National Transportation Safety Board supports the NPRM (76 FR 82205, December 30, 2011... determined that these minor changes: Are consistent with the intent that was proposed in the NPRM (76...

  8. 78 FR 35110 - Airworthiness Directives; Piper Aircraft, Inc. Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-06-12

    ... rulemaking (NPRM) to amend 14 CFR part 39 to supersede AD 82-16-05 R1, amendment 39-5278 (51 FR 11707, April... September 18, 2012 (77 FR 57534). The NPRM included a detailed inspection that involved disassembling the v... part surfaces and tight cracks corrode faster than open surfaces.) The AD, 2000-01-16 (65 FR...

  9. 78 FR 37448 - Airworthiness Directives; Cessna Aircraft Company Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-06-21

    ... specified products. That ] NPRM published in the Federal Register on December 21, 2012 (77 FR 75590). That...), requested we withdraw the NPRM (77 FR 75590, December 21, 2012) because it is unnecessary, does not add to... (77 FR 75590, December 21, 2012) for correcting the unsafe condition; and Do not add any...

  10. 78 FR 26556 - Airworthiness Directives; Piper Aircraft, Inc. Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-05-07

    ... specified products. That NPRM published in the Federal Register on July 19, 2012 (77 FR 42455). That NPRM..., rotary-style switches. Because of the comments received on the NPRM (77 FR 42455, July 19, 2012), the FAA... the concerns identified by the public during the NPRM (77 FR 42455, July 19, 2012) comment...

  11. 77 FR 72250 - Airworthiness Directives; Cessna Aircraft Company Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-12-05

    ... receive about this proposed AD. Discussion In January 2012, we issued AD 2012-02-02 (77 FR 6003, February 7, 2012), and in October 2012, we issued AD 2012-22-01 (77 FR 70114, November 23, 2012) for certain... Policies and Procedures (44 FR 11034, February 26, 1979), (3) Will not affect intrastate aviation in...

  12. 77 FR 68061 - Airworthiness Directives; Sikorsky Aircraft Corporation Helicopters

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-11-15

    ...: Discussion On May 14, 2012, at 77 FR 28328, the Federal Register published our notice of proposed rulemaking... NPRM (77 FR 28328, May 14, 2012). FAA's Determination We have reviewed the relevant information and... 12866; (2) Is not a ``significant rule'' under DOT Regulatory Policies and Procedures (44 FR...

  13. 77 FR 6003 - Airworthiness Directives; Cessna Aircraft Company Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-02-07

    ... certain other publication listed in this AD as of March 6, 2008 (73 FR 5737, January 31, 2008). ADDRESSES... proposed rulemaking (NPRM) to amend 14 CFR part 39 to supersede AD 2008-03-02, Amendment 39-15351 (73 FR... Register on November 14, 2011 (76 FR 70379). That NPRM proposed to continue to require actions of...

  14. 78 FR 9796 - Airworthiness Directives; Cessna Aircraft Company Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-02-12

    ... December 5, 2012 (77 FR 72250). That NPRM proposed to require you to install the forward and aft fuel... (77 FR 72250, December 5, 2012) or on the determination of the cost to the public. Conclusion We... consistent with the intent that was proposed in the NPRM (77 FR 72250, December 5, 2012) for correcting...

  15. 78 FR 58874 - Airworthiness Directives; PILATUS AIRCRAFT LTD. Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-09-25

    ... Register on July 17, 2013 (78 FR 42723). That NPRM proposed to correct an unsafe condition for the... AD. We received no comments on the NPRM (78 FR 42723, July 17, 2013) or on the determination of the... determined that these minor changes: Are consistent with the intent that was proposed in the NPRM (78...

  16. 78 FR 24985 - Airworthiness Directives; Cessna Aircraft Company Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-04-29

    ... . SUPPLEMENTARY INFORMATION: AD 2004-21-08 R1, amendment 39-17400 (78 FR 20227, April 4, 2013), currently requires... stated in the comments section that we received no comments on the NPRM (78 FR 1155, January 8, 2013). We... comments on the NPRM (78 FR 1155, January 8, 2013) or on the determination of the cost to the public.''...

  17. 77 FR 19061 - Airworthiness Directives; Pilatus Aircraft Ltd. Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-03-30

    ..., 2012 (77 FR 2238). That NPRM proposed to correct an unsafe condition for the specified products. The... opportunity to participate in developing this AD. We received no comments on the NPRM (77 FR 2238, January 17... proposed in the NPRM (77 FR 2238, January 17, 2012) for correcting the unsafe condition; and Do not add...

  18. 78 FR 44045 - Airworthiness Directives; Sikorsky Aircraft Corporation (Sikorsky) Helicopters

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-07-23

    ...) Main Rotor Shaft, P/N 70351-38131-042; (10) Output Bevel Gear and Shaft, P/N 70358-06620-101 and -102.... 70351-38131-042 Main Rotor Shaft........ 17,000 5,200 19,000 70358-06620-101 and -102 Output Bevel Gear... 12866; 2. Is not a ``significant rule'' under the DOT Regulatory Policies and Procedures (44 FR...

  19. IDENTIFICATION OF AIRCRAFT HAZARDS

    SciTech Connect

    K.L. Ashley

    2005-03-23

    Aircraft hazards were determined to be potentially applicable to a repository at Yucca Mountain in the ''Monitored Geological Repository External Events Hazards Screening Analysis'' (BSC 2004, Section 6.4.1). That determination was conservatively based on limited knowledge of flight data in the area of concern and on crash data for aircraft of the type flying near Yucca Mountain. The purpose of this report is to identify specific aircraft hazards that may be applicable to a Monitored Geologic Repository (MGR) at Yucca Mountain using NUREG-0800, ''Standard Review Plan for the Review of Safety Analysis Reports for Nuclear Power Plants'' (NRC 1987, Section 3.5.1.6), as guidance for the inclusion or exclusion of identified aircraft hazards. NUREG-0800 is being used here as a reference because some of the same considerations apply. The intended use of this report is to provide inputs for further screening and analysis of the identified aircraft hazards based on the criteria that apply to Category 1 and 2 event sequence analyses as defined in 10 CFR 63.2 (see Section 4). The scope of this technical report includes the evaluation of military, private, and commercial use of airspace in the 100-mile regional setting of the MGR at Yucca Mountain with the potential for reducing the regional setting to a more manageable size after consideration of applicable screening criteria (see Section 7).

  20. Identification of Aircraft Hazards

    SciTech Connect

    K. Ashley

    2006-12-08

    Aircraft hazards were determined to be potentially applicable to a repository at Yucca Mountain in ''Monitored Geological Repository External Events Hazards Screening Analysis'' (BSC 2005 [DIRS 174235], Section 6.4.1). That determination was conservatively based upon limited knowledge of flight data in the area of concern and upon crash data for aircraft of the type flying near Yucca Mountain. The purpose of this report is to identify specific aircraft hazards that may be applicable to a monitored geologic repository (MGR) at Yucca Mountain, using NUREG-0800, ''Standard Review Plan for the Review of Safety Analysis Reports for Nuclear Power Plants'' (NRC 1987 [DIRS 103124], Section 3.5.1.6), as guidance for the inclusion or exclusion of identified aircraft hazards. The intended use of this report is to provide inputs for further screening and analysis of identified aircraft hazards based upon the criteria that apply to Category 1 and Category 2 event sequence analyses as defined in 10 CFR 63.2 [DIRS 176544] (Section 4). The scope of this report includes the evaluation of military, private, and commercial use of airspace in the 100-mile regional setting of the repository at Yucca Mountain with the potential for reducing the regional setting to a more manageable size after consideration of applicable screening criteria (Section 7).

  1. 77 FR 66413 - Airworthiness Directives; Bombardier, Inc. Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-11-05

    ... after receipt. FOR FURTHER INFORMATION CONTACT: Assata Dessaline, Aerospace Engineer, Avionics and Services Branch, ANE-171, FAA, New York Aircraft Certification Office (ACO), 1600 Stewart Avenue, Suite 410... method approved by either the Manager, New York Aircraft Certification Office (ACO), ANE-170, FAA;...

  2. 76 FR 59013 - Airworthiness Directives; Rolls-Royce plc (RR) RB211-Trent 800 Series Turbofan Engines

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-09-23

    ... . SUPPLEMENTARY INFORMATION: Airworthiness Directive 2011-08-07, Amendment 39-16657 (76 FR 24798, May 3, 2011..., Aerospace Engineer, Engine Certification Office, FAA, Engine & Propeller Directorate, 12 New England..., Massachusetts on September 9, 2011. Peter A. White, Manager, Engine & Propeller Directorate,...

  3. 14 CFR 91.145 - Management of aircraft operations in the vicinity of aerial demonstrations and major sporting...

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... vicinity of aerial demonstrations and major sporting events. 91.145 Section 91.145 Aeronautics and Space... operations in the vicinity of aerial demonstrations and major sporting events. (a) The FAA will issue a... of aircraft in the vicinity of an aerial demonstration or major sporting event. These...

  4. Ground-simulation investigations of VTOL airworthiness criteria for terminal-area operations

    NASA Technical Reports Server (NTRS)

    Lebacqz, J. V.; Decker, W. A.; Alderete, T. S.; Scott, B. C.; Harper, P. J. G.; Chung, W. W.

    1990-01-01

    Several ground-based simulation experiments undertaken to investigate concerns related to tilt-rotor aircraft airworthiness were conducted. The experiments were conducted on the National Aeronautics and Space Administration (NASA) Ames Research Center's Vertical Motion Simulator, which permits simulation of a wide variety of aircraft with a high degree of fidelity of motion cueing. Variations in conversion/deceleration profile, type of augmentation or automation, level of display assistance, and meteorological conditions were considered in the course of the experiments. Certification pilots from the Federal Aviation Administration (FAA) and the Civil Aviation Authority (CAA) participated, in addition to NASA research pilots. The setup of these experiments on the simulator is summarized, and some of the results highlighted.

  5. Managing birds and controlling aircraft in the kennedy airport-jamaica bay wildlife refuge complex: the need for hard data and soft opinions.

    PubMed

    Brown, K M; Erwin, R M; Richmond, M E; Buckley, P A; Tanacredi, J T; Avrin, D

    2001-08-01

    During the 1980s, the exponential growth of laughing gull (Larus atricilla) colonies, from 15 to about 7600 nests in 1990, in the Jamaica Bay Wildlife Refuge and a correlated increase in the bird-strike rate at nearby John F. Kennedy International Airport (New York City) led to a controversy between wildlife and airport managers over the elimination of the colonies. In this paper, we review data to evaluate if: (1) the colonies have increased the level of risk to the flying public; (2) on-colony population control would reduce the presence of gulls, and subsequently bird strikes, at the airport; and (3) all on-airport management alternatives have been adequately implemented. Since 1979, most (2987, 87%) of the 3444 bird strikes (number of aircraft struck) were actually bird carcasses found near runways (cause of death unknown but assumed to be bird strikes by definition). Of the 457 pilot-reported strikes (mean = 23 +/- 6 aircraft/yr, N = 20 years), 78 (17%) involved laughing gulls. Since a gull-shooting program was initiated on airport property in 1991, over 50,000 adult laughing gulls have been killed and the number of reported bird strikes involving laughing gulls has declined from 6.9 +/- 2.9 (1983-1990) to 2.6 +/- 1.3 (1991-1998) aircraft/yr; nongull reported bird strikes, however, have more than doubled (6.4 +/- 2.6, 1983-1990; 14.9 +/- 5.1, 1991-1998). We found no evidence to indicate that on-colony management would yield a reduction of bird strikes at Kennedy Airport. Dietary and mark-recapture studies suggest that 60%-90% of the laughing gulls collected on-airport were either failed breeders and/or nonbreeding birds. We argue that the Jamaica Bay laughing gull colonies, the only ones in New York State, should not be managed at least until all on-airport management alternatives have been properly implemented and demonstrated to be ineffective at reducing bird strikes, including habitat alterations and increasing the capability of the bird control unit to

  6. Managing birds and controlling aircraft in the Kennedy Airport-Jamaica Bay Wildlife Refuge complex: the need for hard data and soft opinions

    USGS Publications Warehouse

    Brown, K.M.; Erwin, R.M.; Richmond, M.E.; Buckley, P.A.; Tanacredi, J.T.; Avrin, D.

    2001-01-01

    During the 1980s, the exponential growth of laughing gull (Larus atrfcilla) colonies, from 15 to about 7600 nests in 1990, in the Jamaica Bay Wildlife Refuge and a correlated increase in the bird-strike rate at nearby John F. Kennedy International Airport (New York City) led to a controversy between wildlife and airport managers over the elimination of the colonies. In this paper, we review data to evaluate if: (1) the colonies have increased the level of risk to the flying public; (2) on-colony population control would reduce the presence of gulls, and subsequently bird strikes, at the airport; and (3) all on-airport management alternatives have been adequately implemented. Since 1979, most (2987, 87%) of the 3444 bird strikes (number of aircraft struck) were actually bird carcasses found near runways (cause of death unknown but assumed to be bird strikes by definition). Of the 457 pilot-reported strikes (mean = 23 + 6 aircraft/yr, N = 20 years), 78 (17%) involved laughing gulls. Since a gull-shooting program was initiated on airport property in 1991, over 50,000 adult laughing gulls have been killed and the number of reported bird strikes involving laughing gulls has declined from 6.9 + 2.9 (1983-1990) to 2.8 + 1.3 (1991-1998) aircraft/yr; nongull reported bird strikes, however, have more than doubled (6.4 + 2.6, 1983-1990; 14.9 + 5.1, 1991-1998). We found no evidence to indicate that on-colony management would yield a reduction of bird strikes at Kennedy Airport. Dietary and mark-recapture studies suggest that 60%-90% of the laughing gulls collected on-airport were either failed breeders and/or nonbreeding birds. We argue that the Jamaica Bay laughing gull colonies, the only ones in New York State, should not be managed at least until all on-airport management alternatives have been properly implemented and demonstrated to be ineffective at reducing bird strikes, including habitat alterations and increasing the capability of the bird control unit to eliminate

  7. TAKEOFF AND LANDING PERFORMANCE CAPABILITIES OF TRANSPORT CATEGORY AIRCRAFT

    NASA Technical Reports Server (NTRS)

    Foss, W. E.

    1994-01-01

    One of the most important considerations in the design of a commercial transport aircraft is the aircraft's performance during takeoff and landing operations. The aircraft must be designed to meet field length constraints in accordance with airworthiness standards specified in the Federal Aviation Regulations. In addition, the noise levels generated during these operations must be within acceptable limits. This computer program provides for the detailed analysis of the takeoff and landing performance capabilities of transport category aircraft. The program calculates aircraft performance in accordance with the airworthiness standards of the Federal Aviation Regulations. The aircraft and flight constraints are represented in sufficient detail to permit realistic sensitivity studies in terms of either configuration modifications or changes in operational procedures. This program provides for the detailed performance analysis of the takeoff and landing capabilities of specific aircraft designs and allows for sensitivity studies. The program is not designed to synthesize configurations or to generate aerodynamic, propulsion, or structural characteristics. This type of information must be generated externally to the program and then input as data. The program's representation of the aircraft data is extensive and includes realistic limits on engine and aircraft operational boundaries and maximum attainable lift coefficients. The takeoff and climbout flight-path is generated by a stepwise integration of the equation of motion. Special features include options for nonstandard-day operation, for balanced field length, for derated throttle to meet a given field length for off-loaded aircraft, and for throttle cutback during climbout for community noise alleviation. Advanced takeoff procedures for noise alleviation such as programmed throttle and control flaps may be investigated with the program. Approach profiles may incorporate advanced procedures such as two segment

  8. Aircraft cybernetics

    NASA Technical Reports Server (NTRS)

    1977-01-01

    The use of computers for aircraft control, flight simulation, and inertial navigation is explored. The man-machine relation problem in aviation is addressed. Simple and self-adapting autopilots are described and the assets and liabilities of digital navigation techniques are assessed.

  9. Development of a biaxial test facility for structural evaluation of aircraft fuselage panels

    SciTech Connect

    Roach, D.; Walkington, P.; Rice, T.

    1998-03-01

    The number of commercial airframes exceeding twenty years of service continues to grow. An unavoidable by-product of aircraft use is that crack and corrosion flaws develop throughout the aircraft`s skin and substructure elements. Economic barriers to the purchase of new aircraft have created an aging aircraft fleet and placed even greater demands on efficient and safe repair methods. Composite doublers, or repair patches, provide an innovative repair technique which can enhance the way aircraft are maintained. Instead of riveting multiple steel or aluminum plates to facilitate an aircraft repair, it is now possible to bond a single Boron-Epoxy composite doubler to the damaged structure. The composite doubler repair process produces both engineering and economic benefits. The FAA`s Airworthiness Assurance Center at Sandia National Labs completed a project to introduce composite doubler repair technology to the commercial aircraft industry. This paper focuses on a specialized structural test facility which was developed to evaluate the performance of composite doublers on actual aircraft structure. The facility can subject an aircraft fuselage section to a combined load environment of pressure (hoop stress) and axial, or longitudinal, stress. The tests simulate maximum cabin pressure loads and use a computerized feedback system to maintain the proper ratio between hoop and axial loads. Through the use of this full-scale test facility it was possible to: (1) assess general composite doubler response in representative flight load scenarios, and (2) verify the design and analysis approaches as applied to an L-1011 door corner repair.

  10. 41 CFR 102-33.200 - Must we periodically justify owning and operating Federal aircraft?

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... Management Federal Property Management Regulations System (Continued) FEDERAL MANAGEMENT REGULATION PERSONAL PROPERTY 33-MANAGEMENT OF GOVERNMENT AIRCRAFT Managing Government Aircraft and Aircraft Parts Accounting... 41 Public Contracts and Property Management 3 2011-01-01 2011-01-01 false Must we...

  11. Optimization in fractional aircraft ownership

    NASA Astrophysics Data System (ADS)

    Septiani, R. D.; Pasaribu, H. M.; Soewono, E.; Fayalita, R. A.

    2012-05-01

    Fractional Aircraft Ownership is a new concept in flight ownership management system where each individual or corporation may own a fraction of an aircraft. In this system, the owners have privilege to schedule their flight according to their needs. Fractional management companies (FMC) manages all aspects of aircraft operations, including utilization of FMC's aircraft in combination of outsourced aircrafts. This gives the owners the right to enjoy the benefits of private aviations. However, FMC may have complicated business requirements that neither commercial airlines nor charter airlines faces. Here, optimization models are constructed to minimize the number of aircrafts in order to maximize the profit and to minimize the daily operating cost. In this paper, three kinds of demand scenarios are made to represent different flight operations from different types of fractional owners. The problems are formulated as an optimization of profit and a daily operational cost to find the optimum flight assignments satisfying the weekly and daily demand respectively from the owners. Numerical results are obtained by Genetic Algorithm method.

  12. SIG: Multiple Views on Safety-Critical Automation: Aircraft, Autonomous Vehicles, Air Traffic Management and Satellite Ground Segments Perspectives

    NASA Technical Reports Server (NTRS)

    Feary, Michael; Palanque, Philippe; Martinie, Célia; Tscheligi, Manfred

    2016-01-01

    This SIG focuses on the engineering of automation in interactive critical systems. Automation has already been studied in a number of (sub-) disciplines and application fields: design, human factors, psychology, (software) engineering, aviation, health care, games. One distinguishing feature of the area we are focusing on is that in the field of interactive critical systems properties such as reliability, dependability, fault tolerance are as important as usability, user experience or overall acceptance issues. The SIG targets at two problem areas: first the engineering of the user interaction with (partly-) autonomous systems: how to design, build and assess autonomous behavior, especially in cases where there is a need to represent on the user interface both autonomous and interactive objects. An example of such integration is the representation of an unmanned aerial vehicle (UAV) (where no direct interaction is possible), together with aircrafts (that have to be instructed by an air traffic controller to avoid the UAV). Second the design and engineering of user interaction in general for autonomous objects/systems (for example a cruise control in a car or an autopilot in an aircraft). The goal of the SIG is to raise interest in the CHI community on the general aspects of automation and to identify a community of researchers and practitioners interested in those increasingly prominent issues of interfaces towards (semi)-autonomous systems. The expected audience should be interested in addressing the issues of integration of mainly unconnected research domains to formulate a new joint research agenda.

  13. Quiet short-haul research aircraft familiarization document, revision 1

    NASA Technical Reports Server (NTRS)

    Eppel, J. C.

    1981-01-01

    The design features and general characteristics of the Quiet Short Haul Research Aircraft are described. Aerodynamic characteristics and performance are discussed based on predictions and early flight test data. Principle airplane systems, including the airborne data acquisition system, are also described. The aircraft was designed and built to fulfill the need for a national research facility to explore the use of upper surface blowing, propulsive lift technology in providing short takeoff and landing capability, and perform advanced experiments in various technical disciplines such as aerodynamics, propulsion, stability and control, handling qualities, avionics and flight control systems, trailing vortex phenomena, acoustics, structure and loads, operating systems, human factors, and airworthiness/certification criteria. An unusually austere approach using experimental shop practices resulted in a low cost and high research capability.

  14. Low-voltage radiography on aircraft composite doublers

    SciTech Connect

    Moore, D.G.; Murray, J.D.

    1997-11-01

    Composite doublers are gaining popularity for their ability to repair and reinforce commercial aircraft structures and it is anticipated that the potential cost savings may spur wider use of this technology. But before composite doublers can be accepted by the civil aviation industry, inspection techniques must be developed to verify the integrity of the doubler and the parent material under the doubler. The Federal Aviation Administration Airworthiness Assurance NDI Validation Center (AANC) is currently developing test methods to inspect aircraft structures under composite doublers using low kilovoltage radiography. This paper documents the radiographic techniques developed by the AANC which have been found to give the best contrast of the radiographic image with reduced image distortion.

  15. 41 CFR 102-33.425 - What Federal aircraft cost and utilization data must we report?

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... Management Federal Property Management Regulations System (Continued) FEDERAL MANAGEMENT REGULATION PERSONAL PROPERTY 33-MANAGEMENT OF GOVERNMENT AIRCRAFT Reporting Information on Government Aircraft Federal Aircraft... 41 Public Contracts and Property Management 3 2010-07-01 2010-07-01 false What Federal...

  16. A reappraisal of transport aircraft needs 1985 - 2000: Perceptions of airline management in a changing economic, regulatory, and technological environment

    NASA Technical Reports Server (NTRS)

    Spencer, F. A.

    1982-01-01

    Views of the executives of 24 major, national, regional, and commuter airlines concerning the effect of recent regulatory, economic, and technological changes on the roles they see for their airlines, and consequent changes in their plans for acquiring aircraft for the 1985 to 2000 period were surveyed. Differing perceptions on the economic justification for new-technology jets in the context of the carriers' present and projected financial conditions are outlined. After examining the cases for new or intermediate size jets, the study discusses turboprop powered transports, including the carriers' potential interest in an advanced technology, high-speed turboprop or prop-fan. Finally, the implications of foreign competition are examined in terms of each carrier's evaluation of the quality and financial offerings, as well as possible 'Buy American' policy predisposition.

  17. Educating with Aircraft Models

    ERIC Educational Resources Information Center

    Steele, Hobie

    1976-01-01

    Described is utilization of aircraft models, model aircraft clubs, and model aircraft magazines to promote student interest in aerospace education. The addresses for clubs and magazines are included. (SL)

  18. A STOL airworthiness investigation using a simulation of an augmentor wing transport. Volume 1: Summary of results and airworthiness implications

    NASA Technical Reports Server (NTRS)

    Stapleford, R. L.; Heffley, R. K.; Hynes, C. S.; Scott, B. C.

    1974-01-01

    A simulator study of STOL airworthiness criteria was conducted using a model of an augmentor wing transport. The approach, flare and landing, go-around, and takeoff phases of flight were investigated. The results are summarized and possible implications with regard to airworthiness criteria are discussed. The results provide a data base for future STOL airworthiness requirements and a preliminary indication of potential problem areas. The results are also compared to the results from an earlier simulation of the Breguet 941S. Where possible, airworthiness criteria are proposed for consideration.

  19. 41 CFR 102-33.390 - What information must we report on Government aircraft?

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... report on Government aircraft? 102-33.390 Section 102-33.390 Public Contracts and Property Management... 33-MANAGEMENT OF GOVERNMENT AIRCRAFT Reporting Information on Government Aircraft Overview § 102-33.390 What information must we report on Government aircraft? (a) You must report the...

  20. 41 CFR 102-33.390 - What information must we report on Government aircraft?

    Code of Federal Regulations, 2012 CFR

    2012-01-01

    ... report on Government aircraft? 102-33.390 Section 102-33.390 Public Contracts and Property Management... 33-MANAGEMENT OF GOVERNMENT AIRCRAFT Reporting Information on Government Aircraft Overview § 102-33.390 What information must we report on Government aircraft? (a) You must report the...

  1. 41 CFR 102-33.390 - What information must we report on Government aircraft?

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... report on Government aircraft? 102-33.390 Section 102-33.390 Public Contracts and Property Management... 33-MANAGEMENT OF GOVERNMENT AIRCRAFT Reporting Information on Government Aircraft Overview § 102-33.390 What information must we report on Government aircraft? (a) You must report the...

  2. 41 CFR 102-33.390 - What information must we report on Government aircraft?

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ... report on Government aircraft? 102-33.390 Section 102-33.390 Public Contracts and Property Management... 33-MANAGEMENT OF GOVERNMENT AIRCRAFT Reporting Information on Government Aircraft Overview § 102-33.390 What information must we report on Government aircraft? (a) You must report the...

  3. 75 FR 50865 - Airworthiness Directives; Various Aircraft Equipped With Rotax Aircraft Engines 912 A Series Engines

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-08-18

    ... (75 FR 32315). That NPRM proposed to correct an unsafe condition for the specified products. The MCAI... between the national government and the States, or on the distribution of power and responsibilities among... Regulatory Policies and Procedures (44 FR 11034, February 26, 1979); and (3) Will not have a...

  4. 76 FR 40219 - Airworthiness Directives; Various Aircraft Equipped With Rotax Aircraft Engines 912 A Series Engine

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-07-08

    ... condition described in the MCAI. DATES: This AD becomes effective July 25, 2011. As of June 16, 2011 (76 FR... . SUPPLEMENTARY INFORMATION: Discussion On May 10, 2011, we issued AD 2011-11-03, Amendment 39-16702 (76 FR 31465... Procedures (44 FR 11034, February 26, 1979); and (3) Will not have a significant economic impact, positive...

  5. 76 FR 31465 - Airworthiness Directives; Various Aircraft Equipped With Rotax Aircraft Engines 912 A Series Engine

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-06-01

    ... Procedures (44 FR 11034, February 26, 1979); and (3) Will not have a significant economic impact, positive or... review, a deviation in hardening of certain Part Number (P/N) 944072 washers has been detected, which... production process review, a deviation in hardening of certain Part Number (P/N) 944072 washers has...

  6. 77 FR 44429 - Airworthiness Directives; Various Aircraft Equipped With Rotax Aircraft Engines 912 A Series Engine

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-07-30

    ...'' under the DOT Regulatory Policies and Procedures (44 FR 11034, February 26, 1979), (3) Will not affect... a deviation in the manufacturing process of fuel hoses installed on the pressure side of part number 893114 fuel pumps. The fuel hoses may not be fuel resistant, which could lead to detachment of...

  7. 77 FR 58785 - Airworthiness Directives; Airbus Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-09-24

    ... rule'' under the DOT Regulatory Policies and Procedures (44 FR 11034, February 26, 1979); 3. Will not... this proposed AD, contact Airbus SAS--EAW (Airworthiness Office), 1 Rond Point Maurice Bellonte, 31707... related information. (2) For service information identified in this AD, contact Airbus...

  8. 77 FR 6023 - Airworthiness Directives; Airbus Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-02-07

    ... adequacy of existing regulations, the service history of airplanes subject to those regulations, and... Federal Aviation Administration 14 CFR Part 39 RIN 2120-AA64 Airworthiness Directives; Airbus Airplanes... airplanes and Model A310-203, -204, - 221, and -222 airplanes. This proposed AD was prompted by a report...

  9. 78 FR 17071 - Airworthiness Directives; Airbus Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-03-20

    ... been embodied in production. (2) Model A330-223F and -243F airplanes, all manufacturer serial numbers..., 2012 (77 FR 66764). That NPRM proposed to correct an unsafe condition for the specified products. The Mandatory Continuing Airworthiness Information (MCAI) states: It was noticed in production that the...

  10. 77 FR 57995 - Airworthiness Directives; Airbus Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-09-19

    ... From the Federal Register Online via the Government Publishing Office DEPARTMENT OF TRANSPORTATION Federal Aviation Administration 14 CFR Part 39 [Docket No. FAA-2011-0997; Directorate Identifier 2011-NM-043-AD; Amendment 39-16963; AD 2012-04-07] RIN 2120-AA64 Airworthiness Directives; Airbus...

  11. 77 FR 17327 - Airworthiness Directives; Airbus Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-03-26

    ... From the Federal Register Online via the Government Publishing Office DEPARTMENT OF TRANSPORTATION Federal Aviation Administration 14 CFR Part 39 [Docket No. FAA-2011-1087; Directorate Identifier 2011-NM-032-AD; Amendment 39-16967; AD 2012-04-11] RIN 2120-AA64 Airworthiness Directives; Airbus...

  12. 78 FR 46536 - Airworthiness Directives; Airbus Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-08-01

    ... Procedures (44 FR 11034, February 26, 1979); 3. Will not affect intrastate aviation in Alaska; and 4. Will... Federal Aviation Administration 14 CFR Part 39 RIN 2120-AA64 Airworthiness Directives; Airbus Airplanes... B4-600R series airplanes. This proposed AD was prompted by reports of cracks found in the bottom...

  13. 78 FR 15335 - Airworthiness Directives; Airbus Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-03-11

    ... required by EASA AD 2010-0071R1 [which corresponds to FAA AD 2011-14-06, Amendment 39- 16741 (76 FR 42024... 12866; 2. Is not a ``significant rule'' under the DOT Regulatory Policies and Procedures (44 FR 11034... Federal Aviation Administration 14 CFR Part 39 RIN 2120-AA64 Airworthiness Directives; Airbus...

  14. 75 FR 80744 - Airworthiness Directives; McDonnell Douglas Corporation Model DC-9-81 (MD-81), DC-9-82 (MD-82...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-12-23

    ... Federal Aviation Administration 14 CFR Part 39 RIN 2120-AA64 Airworthiness Directives; McDonnell Douglas..., Attention: Data & Services Management, 3855 Lakewood Boulevard, MC D800-0019, Long Beach, California 90846... (72 FR 25960, May 8, 2007). That airplane had accumulated 47,146 total flight hours and 26,490...

  15. 75 FR 2831 - Airworthiness Directives; McDonnell Douglas Corporation Model DC-10-10, DC-10-10F, and MD-10-10F...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-01-19

    ... Federal Aviation Administration 14 CFR Part 39 RIN 2120-AA64 Airworthiness Directives; McDonnell Douglas... directive (AD) for certain McDonnell Douglas Model DC-10-10, DC-10-10F, and MD-10-10F airplanes. This..., Attention: Data & Services Management, 3855 Lakewood Boulevard, MC D800-0019, Long Beach, California...

  16. 41 CFR 102-33.430 - Who must report Federal aircraft cost and utilization data?

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... Federal Property Management Regulations System (Continued) FEDERAL MANAGEMENT REGULATION PERSONAL PROPERTY 33-MANAGEMENT OF GOVERNMENT AIRCRAFT Reporting Information on Government Aircraft Federal Aircraft... 41 Public Contracts and Property Management 3 2010-07-01 2010-07-01 false Who must report...

  17. 78 FR 34960 - Airworthiness Directives; Eurocopter France Model Helicopters

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-06-11

    ... a ``significant rule'' under the DOT Regulatory Policies and Procedures (44 FR 11034, February 26... Federal Aviation Administration 14 CFR Part 39 RIN 2120-AA64 Airworthiness Directives; Eurocopter France... rulemaking (NPRM). SUMMARY: We propose to adopt a new airworthiness directive (AD) for Eurocopter...

  18. 78 FR 37154 - Airworthiness Directives; Eurocopter France Helicopters

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-06-20

    ... FR 11034, February 26, 1979); 3. Will not affect intrastate aviation in Alaska to the extent that it... Federal Aviation Administration 14 CFR Part 39 RIN 2120-AA64 Airworthiness Directives; Eurocopter France...). SUMMARY: We propose to adopt a new airworthiness directive (AD) for Eurocopter France (Eurocopter)...

  19. 77 FR 58973 - Airworthiness Directives; Eurocopter France Helicopters

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-09-25

    ... Policies and Procedures (44 FR 11034, February 26, 1979); 3. Will not affect intrastate aviation in Alaska... Federal Aviation Administration 14 CFR Part 39 RIN 2120-AA64 Airworthiness Directives; Eurocopter France...). SUMMARY: We propose to adopt a new airworthiness directive (AD) for the Eurocopter France...

  20. 77 FR 58925 - Airworthiness Directives; Eurocopter France Helicopters

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-09-25

    ...'' under DOT Regulatory Policies and Procedures (44 FR 11034, February 26, 1979); 3. Will not affect...-17204; AD 2012-19-09] RIN 2120-AA64 Airworthiness Directives; Eurocopter France Helicopters AGENCY... comments. SUMMARY: We are adopting a new airworthiness directive (AD) for Eurocopter France...

  1. 77 FR 729 - Airworthiness Directives; Enstrom Helicopter Corporation Helicopters

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-01-06

    ...; 2. Is not a ``significant rule'' under DOT Regulatory Policies and Procedures (44 FR 11034, February...-16900; AD 2011-26-10] RIN 2120-AA64 Airworthiness Directives; Enstrom Helicopter Corporation Helicopters...; request for comments. SUMMARY: We are adopting a new airworthiness directive (AD) for Enstrom...

  2. 77 FR 12991 - Airworthiness Directives; Robinson Helicopter Company Helicopters

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-03-05

    ...). SUPPLEMENTARY INFORMATION: Airworthiness Directive 2011-12-10, Amendment 39-16717 (76 FR 35330, June 17, 2011...-074-AD; Amendment 39-16717; AD 2011-12-10] RIN 2120-AA64 Airworthiness Directives; Robinson Helicopter Company Helicopters AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Final rule;...

  3. 77 FR 72776 - Airworthiness Directives; Embraer S.A. Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-12-06

    ... Federal Aviation Administration 14 CFR Part 39 RIN 2120-AA64 Airworthiness Directives; Embraer S.A...). SUMMARY: We propose to adopt a new airworthiness directive (AD) for certain Embraer S.A. Model ERJ 170 and...., Washington, DC, between 9 a.m. and 5 p.m., Monday through Friday, except Federal holidays. For...

  4. 77 FR 73270 - Airworthiness Directives; Embraer S.A. Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-12-10

    ... (75 FR 30277, June 1, 2010), and adding the following new AD: 2012-23-09 Embraer S.A.: Amendment 39...-112-AD; Amendment 39-17265; AD 2012-23-09] RIN 2120-AA64 Airworthiness Directives; Embraer S.A... rule. SUMMARY: We are superseding an existing airworthiness directive (AD) for all Embraer S.A....

  5. 77 FR 65144 - Airworthiness Directives; Embraer S.A. Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-10-25

    ... 12866; 2. Is not a ``significant rule'' under the DOT Regulatory Policies and Procedures (44 FR 11034... Federal Aviation Administration 14 CFR Part 39 RIN 2120-AA64 Airworthiness Directives; Embraer S.A...). SUMMARY: We propose to adopt a new airworthiness directive (AD) for certain Embraer S.A. Model ERJ 170...

  6. 78 FR 21276 - Airworthiness Directives; The Boeing Company Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-04-10

    ... Federal Aviation Administration 14 CFR Part 39 RIN 2120-AA64 Airworthiness Directives; The Boeing Company...). SUMMARY: We propose to adopt a new airworthiness directive (AD) for certain The Boeing Company Model 767... necessary, a detailed inspection to determine the nut type installed in the outboard flap support rib...

  7. 78 FR 47233 - Airworthiness Directives; The Boeing Company Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-08-05

    ... Federal Aviation Administration 14 CFR Part 39 RIN 2120-AA64 Airworthiness Directives; The Boeing Company...). SUMMARY: We propose to adopt a new airworthiness directive (AD) for certain The Boeing Company Model 737-600, -700, -800, -900, and -900ER airplanes modified by particular supplemental type certificates...

  8. 78 FR 57049 - Airworthiness Directives; the Boeing Company Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-09-17

    ...-025-AD; Amendment 39-17575; AD 2013-18-02] RIN 2120-AA64 Airworthiness Directives; the Boeing Company... new airworthiness directive (AD) for certain The Boeing Company Model 767-200, -300, -300F, and -400ER... and corrective actions if necessary, and if necessary, a detailed inspection to determine the nut...

  9. 77 FR 37770 - Airworthiness Directives; The Boeing Company Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-06-25

    ...-178-AD; Amendment 39-17094; AD 2012-12-14] RIN 2120-AA64 Airworthiness Directives; The Boeing Company... new airworthiness directive (AD) for certain The Boeing Company Model 767-200 and -300 series..., corrosion damage, and any other irregularity of the lower main sill inner chord and surrounding...

  10. 78 FR 60679 - Airworthiness Directives; The Boeing Company Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-10-02

    ...-273-AD; Amendment 39-17604; AD 2013-19-22] RIN 2120-AA64 Airworthiness Directives; The Boeing Company... new airworthiness directive (AD) for all The Boeing Company Model 717-200 airplanes. This AD was... result in damage to the adjacent structure and consequent loss of structural integrity of the...

  11. 77 FR 69744 - Airworthiness Directives; The Boeing Company Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-11-21

    ... NPRM (76 FR 69685, November 9, 2011) to clarify that structural inspections of fuselage structure are...-239-AD; Amendment 39-17255; AD 2012-22-17] RIN 2120-AA64 Airworthiness Directives; The Boeing Company... new airworthiness directive (AD) for certain The Boeing Company Model 767-200 and -300...

  12. 77 FR 27142 - Airworthiness Directives; The Boeing Company Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-05-09

    ... Federal Aviation Administration 14 CFR Part 39 RIN 2120-AA64 Airworthiness Directives; The Boeing Company...). SUMMARY: We propose to adopt a new airworthiness directive (AD) for all The Boeing Company Model 717-200... structure and consequent loss of structural integrity of the airplane. DATES: We must receive comments...

  13. 78 FR 52419 - Airworthiness Directives; The Boeing Company Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-08-23

    ...-128-AD; Amendment 39-17555; AD 2013-16-17] RIN 2120-AA64 Airworthiness Directives; The Boeing Company... new airworthiness directive (AD) for all The Boeing Company Model 727, 727C, 727-100, 727-100C, 727... any cracked structure. We are issuing this AD to detect and correct fatigue cracking of the...

  14. 77 FR 40828 - Airworthiness Directives; The Boeing Company Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-07-11

    ... Federal Aviation Administration 14 CFR Part 39 RIN 2120-AA64 Airworthiness Directives; The Boeing Company...). SUMMARY: We propose to adopt a new airworthiness directive (AD) for certain The Boeing Company Model DC-10... structure, which could adversely affect the airplane's continued safe flight and landing. DATES: We...

  15. 77 FR 37793 - Airworthiness Directives; the Boeing Company Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-06-25

    ...-124-AD; Amendment 39-17099; AD 2012-12-19] RIN 2120-AA64 Airworthiness Directives; the Boeing Company... new airworthiness directive (AD) for certain the Boeing Company Model 777-200, -200LR, and -300ER... ceiling support structure of Section 41, in airplanes incorporating the overhead space utilization...

  16. 77 FR 58791 - Airworthiness Directives; The Boeing Company Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-09-24

    ...). SUMMARY: We propose to adopt a new airworthiness directive (AD) for certain The Boeing Company Model 737... revision to the airworthiness limitations of the maintenance planning data document. This proposed AD would... procedures found in 14 CFR 11.43 and 11.45, by any of the following methods: Federal eRulemaking Portal:...

  17. 76 FR 68666 - Airworthiness Directives; The Boeing Company Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-11-07

    ... following new airworthiness directive (AD): The Boeing Company: Docket No. FAA-2011-1171; Directorate... Company Airplanes AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Notice of proposed rulemaking (NPRM). SUMMARY: We propose to adopt a new airworthiness directive (AD) for certain The...

  18. 77 FR 16188 - Airworthiness Directives; The Boeing Company Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-03-20

    ...). SUMMARY: We propose to adopt a new airworthiness directive (AD) for certain The Boeing Company Model 737... includes installing new hardware, replacing the bolt with a new bolt, and contacting The Boeing Company for... following new airworthiness directive (AD): The Boeing Company: Docket No. FAA-2012-0268;...

  19. 77 FR 5996 - Airworthiness Directives; The Boeing Company Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-02-07

    ... new airworthiness directive (AD) for certain The Boeing Company Model 737-100, -200, -200C, and -300...-101-AD; Amendment 39-16932; AD 2012-02-09] RIN 2120-AA64 Airworthiness Directives; The Boeing Company... start a small fire and lead to a larger fire that may spread throughout the airplane through the...

  20. 76 FR 77376 - Airworthiness Directives; BAE Systems (Operations) Limited Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-12-13

    ...-248-AD; Amendment 39-16883; AD 2011-25-07] RIN 2120-AA64 Airworthiness Directives; BAE Systems... Systems (Operations) Limited Model 4101 airplanes. This AD results from mandatory continuing airworthiness... to the specified products. That NPRM was published in the Federal Register on August 31, 2011 (76...

  1. 78 FR 38195 - Airworthiness Directives; General Electric Company Turbofan Engines

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-06-26

    ...; AD 2013-10-52] RIN 2120-AA64 Airworthiness Directives; General Electric Company Turbofan Engines... are adopting a new airworthiness directive (AD) for all General Electric Company (GE) GE90-110B1 and... information identified in this AD, contact General Electric Company, GE-Aviation, Room 285, 1 Neumann...

  2. 78 FR 50320 - Airworthiness Directives; General Electric Company Turbofan Engines

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-08-19

    ...-08-AD; Amendment 39-17553; AD 2013-16-15] RIN 2120-AA64 Airworthiness Directives; General Electric...: We are adopting a new airworthiness directive (AD) for all General Electric Company (GE) model GEnx..., contact General Electric Company, GE Aviation, Room 285, One Neumann Way, Cincinnati, OH; phone:...

  3. 78 FR 24671 - Airworthiness Directives; General Electric Company Turbofan Engines

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-04-26

    ...-AD; Amendment 39-17438; AD 2013-08-20] RIN 2120-AA64 Airworthiness Directives; General Electric...: We are superseding an existing airworthiness directive (AD) for certain General Electric Company (GE... information identified in this AD, contact General Electric Company, GE-Aviation, Room 285, 1 Neumann...

  4. Experimental flight test vibration measurements and nondestructive inspection on a USCG HC-130H aircraft

    SciTech Connect

    Moore, D.G.; Jones, C.R.; Mihelic, J.E.; Barnes, J.D.

    1998-08-01

    This paper presents results of experimental flight test vibration measurements and structural inspections performed by the Federal Aviation Administration`s Airworthiness Assurance NDI Validation Center (AANC) at Sandia National Laboratories and the US Coast Guard Aircraft Repair and Supply Center (ARSC). Structural and aerodynamic changes induced by mounting a Forward Looking Infrared (FLIR) system on a USCG HC-130H aircraft are described. The FLIR adversely affected the air flow characteristics and structural vibration on the external skin of the aircraft`s right main wheel well fairing. Upon initial discovery of skin cracking and visual observation of skin vibration in flight by the FLIR, a baseline flight without the FLIR was conducted and compared to other measurements with the FLIR installed. Nondestructive inspection procedures were developed to detect cracks in the skin and supporting structural elements and document the initial structural condition of the aircraft. Inspection results and flight test vibration data revealed that the FLIR created higher than expected flight loading and was the possible source of the skin cracking. The Coast Guard performed significant structural repair and enhancement on this aircraft, and additional in-flight vibration measurements were collected on the strengthened area both with and without the FLIR installed. After three months of further operational FLIR usage, the new aircraft skin with the enhanced structural modification was reinspected and found to be free of flaws. Additional US Coast Guard HC-130H aircraft are now being similarly modified to accommodate this FLIR system. Measurements of in-flight vibration levels with and without the FLIR installed, and both before and after the structural enhancement and repair were conducted on the skin and supporting structure in the aircraft`s right main wheel fairing. Inspection results and techniques developed to verify the aircraft`s structural integrity are discussed.

  5. 41 CFR 102-33.195 - Do we need an automated system to account for aircraft costs?

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... Management Federal Property Management Regulations System (Continued) FEDERAL MANAGEMENT REGULATION PERSONAL PROPERTY 33-MANAGEMENT OF GOVERNMENT AIRCRAFT Managing Government Aircraft and Aircraft Parts Accounting... 41 Public Contracts and Property Management 3 2011-01-01 2011-01-01 false Do we need an...

  6. Aircraft Electric Secondary Power

    NASA Technical Reports Server (NTRS)

    1983-01-01

    Technologies resulted to aircraft power systems and aircraft in which all secondary power is supplied electrically are discussed. A high-voltage dc power generating system for fighter aircraft, permanent magnet motors and generators for aircraft, lightweight transformers, and the installation of electric generators on turbine engines are among the topics discussed.

  7. World commercial aircraft accidents

    SciTech Connect

    Kimura, C.Y.

    1993-01-01

    This report is a compilation of all accidents world-wide involving aircraft in commercial service which resulted in the loss of the airframe or one or more fatality, or both. This information has been gathered in order to present a complete inventory of commercial aircraft accidents. Events involving military action, sabotage, terrorist bombings, hijackings, suicides, and industrial ground accidents are included within this list. Included are: accidents involving world commercial jet aircraft, world commercial turboprop aircraft, world commercial pistonprop aircraft with four or more engines and world commercial pistonprop aircraft with two or three engines from 1946 to 1992. Each accident is presented with information in the following categories: date of the accident, airline and its flight numbers, type of flight, type of aircraft, aircraft registration number, construction number/manufacturers serial number, aircraft damage, accident flight phase, accident location, number of fatalities, number of occupants, cause, remarks, or description (brief) of the accident, and finally references used. The sixth chapter presents a summary of the world commercial aircraft accidents by major aircraft class (e.g. jet, turboprop, and pistonprop) and by flight phase. The seventh chapter presents several special studies including a list of world commercial aircraft accidents for all aircraft types with 100 or more fatalities in order of decreasing number of fatalities, a list of collision accidents involving commercial aircrafts, and a list of world commercial aircraft accidents for all aircraft types involving military action, sabotage, terrorist bombings, and hijackings.

  8. The Second Joint NASA/FAA/DOD Conference on Aging Aircraft. Pt. 1

    NASA Technical Reports Server (NTRS)

    Harris, Charles E. (Editor)

    1999-01-01

    The purpose of the Conference was to bring together world leaders in aviation safety research, aircraft design and manufacturing, fleet operation and aviation maintenance to disseminate information on current practices and advanced technologies that will assure the continued airworthiness of the aging aircraft in the military and commercial fleets. The Conference included reviews of current industry practices, assessments of future technology requirements, and status of aviation safety research. The Conference provided an opportunity for interactions among the key personnel in the research and technology development community, the original equipment manufacturers, commercial airline operators, military fleet operators, aviation maintenance, and aircraft certification and regulatory authorities. Conference participation was unrestricted and open to the international aviation community.

  9. The Second Joint NASA/FAA/DoD Conference on Aging Aircraft. Part 2

    NASA Technical Reports Server (NTRS)

    Harris, Charles E. (Editor)

    1999-01-01

    The purpose of the Conference was to bring together world leaders in aviation safety research, aircraft design and manufacturing, fleet operation and aviation maintenance to disseminate information on current practices and advanced technologies that will assure the continued airworthiness of the aging aircraft in the military and commercial fleets. The Conference included reviews of current industry practices, assessments of future technology requirements, and status of aviation safety research. The Conference provided an opportunity for interactions among the key personnel in the research and technology development community, the original equipment manufacturers, commercial airline operators, military fleet operators, aviation maintenance, and aircraft certification and regulatory authorities. Conference participation was unrestricted and open to the international aviation community. Appendix B contains the name and addresses of the 623 participants in the Conference.

  10. 14 CFR 91.1041 - Aircraft proving and validation tests.

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ... manager may permit the operation of an aircraft, other than a turbojet aircraft, for which two pilots are... the Administrator. (b) No program manager may permit the operation of a turbojet airplane if it has... is required to determine that a program manager is capable of conducting operations safely and...

  11. Classification of Unmanned Aircraft Systems. UAS Classification/Categorization for Certification

    NASA Technical Reports Server (NTRS)

    2004-01-01

    Category, class, and type designations are primary means to identify appropriate aircraft certification basis, operating rules/limitations, and pilot qualifications to operate in the National Airspace System (NAS). The question is whether UAS fit into existing aircraft categories or classes, or are unique enough to justify the creation of a new category/class. In addition, the characteristics or capabilities, which define when an UAS becomes a regulated aircraft, must also be decided. This issue focuses on UAS classification for certification purposes. Several approaches have been considered for classifying UAS. They basically group into either using a weight/mass basis, or a safety risk basis, factoring in the performance of the UAS, including where the UAS would operate. Under existing standards, aircraft must have a Type Certificate and Certificate of Airworthiness, in order to be used for "compensation or hire", a major difference from model aircraft. Newer technologies may make it possible for very small UAS to conduct commercial services, but that is left for a future discussion to extend the regulated aircraft to a lower level. The Access 5 position is that UAS are aircraft and should be regulated above the weight threshold differentiating them from model airplanes. The recommended classification grouping is summarized in a chart.

  12. Registration and Marking Requirements for UAS. Unmanned Aircraft System (UAS) Registration

    NASA Technical Reports Server (NTRS)

    2005-01-01

    The registration of an aircraft is a prerequisite for issuance of a U.S. certificate of airworthiness by the FAA. The procedures and requirements for aircraft registration, and the subsequent issuance of registration numbers, are contained in FAR Part 47. However, the process/method(s) for applying the requirements of Parts 45 & 47 to Unmanned Aircraft Systems (UAS) has not been defined. This task resolved the application of 14 CFR Parts 45 and 47 to UAS. Key Findings: UAS are aircraft systems and as such the recommended approach to registration is to follow the same process for registration as manned aircraft. This will require manufacturers to comply with the requirements for 14 CFR 47, Aircraft Registration and 14 CFR 45, Identification and Registration Marking. In addition, only the UA should be identified with the N number registration markings. There should also be a documentation link showing the applicability of the control station and communication link to the UA. The documentation link can be in the form of a Type Certificate Data Sheet (TCDS) entry or a UAS logbook entry. The recommended process for the registration of UAS is similar to the manned aircraft process and is outlined in a 6-step process in the paper.

  13. 41 CFR 301-10.265 - Will my travel on Government aircraft be reported?

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... Government aircraft be reported? 301-10.265 Section 301-10.265 Public Contracts and Property Management...-TRANSPORTATION EXPENSES Government Vehicle Travel on Government Aircraft § 301-10.265 Will my travel on Government aircraft be reported? Your travel on Government aircraft will not be reported unless you are...

  14. 41 CFR 301-10.265 - Will my travel on Government aircraft be reported?

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... Government aircraft be reported? 301-10.265 Section 301-10.265 Public Contracts and Property Management...-TRANSPORTATION EXPENSES Government Vehicle Travel on Government Aircraft § 301-10.265 Will my travel on Government aircraft be reported? Your travel on Government aircraft will not be reported unless you are...

  15. 41 CFR 301-10.265 - Will my travel on Government aircraft be reported?

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... Government aircraft be reported? 301-10.265 Section 301-10.265 Public Contracts and Property Management...-TRANSPORTATION EXPENSES Government Vehicle Travel on Government Aircraft § 301-10.265 Will my travel on Government aircraft be reported? Your travel on Government aircraft will not be reported unless you are...

  16. 41 CFR 301-10.265 - Will my travel on Government aircraft be reported?

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... Government aircraft be reported? 301-10.265 Section 301-10.265 Public Contracts and Property Management...-TRANSPORTATION EXPENSES Government Vehicle Travel on Government Aircraft § 301-10.265 Will my travel on Government aircraft be reported? Your travel on Government aircraft will not be reported unless you are...

  17. 41 CFR 301-10.265 - Will my travel on Government aircraft be reported?

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... Government aircraft be reported? 301-10.265 Section 301-10.265 Public Contracts and Property Management...-TRANSPORTATION EXPENSES Government Vehicle Travel on Government Aircraft § 301-10.265 Will my travel on Government aircraft be reported? Your travel on Government aircraft will not be reported unless you are...

  18. Propulsion controlled aircraft computer

    NASA Technical Reports Server (NTRS)

    Cogan, Bruce R. (Inventor)

    2010-01-01

    A low-cost, easily retrofit Propulsion Controlled Aircraft (PCA) system for use on a wide range of commercial and military aircraft consists of an propulsion controlled aircraft computer that reads in aircraft data including aircraft state, pilot commands and other related data, calculates aircraft throttle position for a given maneuver commanded by the pilot, and then displays both current and calculated throttle position on a cockpit display to show the pilot where to move throttles to achieve the commanded maneuver, or is automatically sent digitally to command the engines directly.

  19. Fire resistivity and toxicity studies of candidate aircraft passenger seat materials

    NASA Technical Reports Server (NTRS)

    Fewell, L. L.; Trabold, E. L.; Spieth, H.

    1978-01-01

    Fire resistivity studies were conducted on a wide range of candidate nonmetallic materials being considered for the construction of improved fire resistant aircraft passenger seats. These materials were evaluated on the basis of FAA airworthiness burn and smoke generation tests, colorfastness, limiting oxygen index, and animal toxicity tests. Physical, mechanical, and aesthetic properties were also assessed. Candidate seat materials that have significantly improved thermal response to various thermal loads corresponding to reasonable fire threats as they relate to in-flight fire situations, are identified.

  20. Fire resistivity and toxicity studies of candidate aircraft passenger seat materials

    NASA Technical Reports Server (NTRS)

    Fewell, L. L.; Trabold, E. L.; Spieth, H. H.

    1978-01-01

    This paper describes fire resistivity studies of a wide range of candidate nonmetallic materials for the construction of improved fire resistant aircraft passenger seats. These materials were evaluated on the basis of FAA airworthiness burn and smoke generation tests, colorfastness, and animal toxicity tests. Physical, mechanical, and aesthetic properties were also included in the evaluations. Candidate seat materials that have significantly improved thermal response to various thermal loads corresponding to reasonable fire threats, as they relate to in-fight fire situations, are identified.

  1. Pilot Preferences on Displayed Aircraft Control Variables

    NASA Technical Reports Server (NTRS)

    Trujillo, Anna C.; Gregory, Irene M.

    2013-01-01

    The experiments described here explored how pilots want available maneuver authority information transmitted and how this information affects pilots before and after an aircraft failure. The aircraft dynamic variables relative to flight performance were narrowed to energy management variables. A survey was conducted to determine what these variables should be. Survey results indicated that bank angle, vertical velocity, and airspeed were the preferred variables. Based on this, two displays were designed to inform the pilot of available maneuver envelope expressed as bank angle, vertical velocity, and airspeed. These displays were used in an experiment involving control surface failures. Results indicate the displayed limitations in bank angle, vertical velocity, and airspeed were helpful to the pilots during aircraft surface failures. However, the additional information did lead to a slight increase in workload, a small decrease in perceived aircraft flying qualities, and no effect on aircraft situation awareness.

  2. Analytical redundancy management mechanization and flight data analysis for the F-8 digital fly-by-wire aircraft flight control sensors

    NASA Technical Reports Server (NTRS)

    Deckert, J. C.

    1983-01-01

    The details are presented of an onboard digital computer algorithm designed to reliably detect and isolate the first failure in a duplex set of flight control sensors aboard the NASA F-8 digital fly-by-wire aircraft. The algorithm's successful flight test program is summarized, and specific examples are presented of algorithm behavior in response to software-induced signal faults, both with and without aircraft parameter modeling errors.

  3. 77 FR 3184 - Airworthiness Directives; Bombardier, Inc. Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-01-23

    ...-3185] [FR Doc No: 2012-1197] DEPARTMENT OF TRANSPORTATION Federal Aviation Administration 14 CFR Part... Policies and Procedures (44 FR 11034, February 26, 1979); 3. Will not affect intrastate aviation in Alaska..., Acting Manager, Transport Airplane Directorate, Aircraft Certification Service. [FR Doc. 2012-1197...

  4. 77 FR 3088 - Airworthiness Directives; General Electric Company Turbofan Engines

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-01-23

    .... White, Manager, Engine & Propeller Directorate, Aircraft Certification Service. [FR Doc. 2012-1132 Filed... 3088-3090] [FR Doc No: 2012-1132] DEPARTMENT OF TRANSPORTATION Federal Aviation Administration 14 CFR..., Engine & Propeller Directorate, 12 New England Executive Park, Burlington, MA. For information on...

  5. Human and behavioral factors contributing to spine-based neurological cockpit injuries in pilots of high-performance aircraft: recommendations for management and prevention.

    PubMed

    Jones, J A; Hart, S F; Baskin, D S; Effenhauser, R; Johnson, S L; Novas, M A; Jennings, R; Davis, J

    2000-01-01

    In high-performance aircraft, the need for total environmental awareness coupled with high-g loading (often with abrupt onset) creates a predilection for cervical spine injury while the pilot is performing routine movements within the cockpit. In this study, the prevalence and severity of cervical spine injury are assessed via a modified cross-sectional survey of pilots of multiple aircraft types (T-38 and F-14, F-16, and F/A-18 fighters). Ninety-five surveys were administered, with 58 full responses. Fifty percent of all pilots reported in-flight or immediate post-flight spine-based pain, and 90% of fighter pilots reported at least one event, most commonly (> 90%) occurring during high-g (> 5 g) turns of the aircraft with the head deviated from the anatomical neutral position. Pre-flight stretching was not associated with a statistically significant reduction in neck pain episodes in this evaluation, whereas a regular weight training program in the F/A-18 group approached a significant reduction (mean = 2.492; p < 0.064). Different cockpit ergonomics may vary the predisposition to cervical injury from airframe to airframe. Several strategies for prevention are possible from both an aircraft design and a preventive medicine standpoint. Countermeasure strategies against spine injury in pilots of high-performance aircraft require additional research, so that future aircraft will not be limited by the human in control.

  6. Human and behavioral factors contributing to spine-based neurological cockpit injuries in pilots of high-performance aircraft: recommendations for management and prevention

    NASA Technical Reports Server (NTRS)

    Jones, J. A.; Hart, S. F.; Baskin, D. S.; Effenhauser, R.; Johnson, S. L.; Novas, M. A.; Jennings, R.; Davis, J.

    2000-01-01

    In high-performance aircraft, the need for total environmental awareness coupled with high-g loading (often with abrupt onset) creates a predilection for cervical spine injury while the pilot is performing routine movements within the cockpit. In this study, the prevalence and severity of cervical spine injury are assessed via a modified cross-sectional survey of pilots of multiple aircraft types (T-38 and F-14, F-16, and F/A-18 fighters). Ninety-five surveys were administered, with 58 full responses. Fifty percent of all pilots reported in-flight or immediate post-flight spine-based pain, and 90% of fighter pilots reported at least one event, most commonly (> 90%) occurring during high-g (> 5 g) turns of the aircraft with the head deviated from the anatomical neutral position. Pre-flight stretching was not associated with a statistically significant reduction in neck pain episodes in this evaluation, whereas a regular weight training program in the F/A-18 group approached a significant reduction (mean = 2.492; p < 0.064). Different cockpit ergonomics may vary the predisposition to cervical injury from airframe to airframe. Several strategies for prevention are possible from both an aircraft design and a preventive medicine standpoint. Countermeasure strategies against spine injury in pilots of high-performance aircraft require additional research, so that future aircraft will not be limited by the human in control.

  7. Unmanned aircraft systems

    Technology Transfer Automated Retrieval System (TEKTRAN)

    Unmanned platforms have become increasingly more common in recent years for acquiring remotely sensed data. These aircraft are referred to as Unmanned Airborne Vehicles (UAV), Remotely Piloted Aircraft (RPA), Remotely Piloted Vehicles (RPV), or Unmanned Aircraft Systems (UAS), the official term used...

  8. Aircraft landing gear systems

    NASA Technical Reports Server (NTRS)

    Tanner, John A. (Editor)

    1990-01-01

    Topics presented include the laboratory simulation of landing gear pitch-plane dynamics, a summary of recent aircraft/ground vehicle friction measurement tests, some recent aircraft tire thermal studies, and an evaluation of critical speeds in high-speed aircraft. Also presented are a review of NASA antiskid braking research, titanium matrix composite landing gear development, the current methods and perspective of aircraft flotation analysis, the flow rate and trajectory of water spray produced by an aircraft tire, and spin-up studies of the Space Shuttle Orbiter main gear tire.

  9. 41 CFR 102-33.205 - When we use our aircraft to support other executive agencies, must we recover the operating costs?

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... Aircraft and Aircraft Parts Accounting for the Cost of Government Aircraft § 102-33.205 When we use our... 41 Public Contracts and Property Management 3 2011-01-01 2011-01-01 false When we use our aircraft....205 Public Contracts and Property Management Federal Property Management Regulations System...

  10. Small transport aircraft technology

    NASA Technical Reports Server (NTRS)

    Williams, L. J.

    1983-01-01

    Information on commuter airline trends and aircraft developments is provided to upgrade the preliminary findings of a NASA-formed small transport aircraft technology (STAT) team, established to determine whether the agency's research and development programs could help commuter aircraft manufacturers solve technical problems related to passenger acceptance and use of 19- to 50-passenger aircraft. The results and conclusions of the full set of completed STAT studies are presented. These studies were performed by five airplane manufacturers, five engine manufacturers, and two propeller manufacturers. Those portions of NASA's overall aeronautics research and development programs which are applicable to commuter aircraft design are summarized. Areas of technology that might beneficially be expanded or initiated to aid the US commuter aircraft manufacturers in the evolution of improved aircraft for the market are suggested.

  11. Airworthiness testing of medical maggots.

    PubMed

    Peck, George W; Helgeson, Sandra M; Powell, Eric D; Roth, Amanda L; Flores, Micah; Kirkup, Benjamin C

    2015-05-01

    An investigation was conducted to test and certify medicinal maggots to facilitate rapid healing of traumatic and chronic wound infections in Wounded warriors being transported onboard military aircraft. Our specific aims included (1) to test the ability of medical grade larvae to withstand the rigors of U.S. Army aeromedical certification, including tolerance to change in pressure, temperature, and humidity inside ground-based chambers; (2) to evaluate the efficacy of the medical grade larvae during a high-vibration rotary-wing medical transport flight; and (3) to gain U.S. Army aeromedical certification and U.S. Air Force safe-to-fly approval and begin the steps needed to deploy/implement the use of medicinal maggots in patient care regimes for medical airlift standard operating procedures. This report outlines the ground-based and initial air-based tests performed during the study. Maggot mortality was very low during all tests, with a mortality rate of less than 1%. Maggot growth rates in wound arenas were mixed but generally depended on temperature. Overall, the results of these tests suggest that medicinal maggots can withstand the rigors of aeromedical evacuation flights in simulated flight environments and rotary- or fixed-wing aircraft.

  12. Airworthiness testing of medical maggots.

    PubMed

    Peck, George W; Helgeson, Sandra M; Powell, Eric D; Roth, Amanda L; Flores, Micah; Kirkup, Benjamin C

    2015-05-01

    An investigation was conducted to test and certify medicinal maggots to facilitate rapid healing of traumatic and chronic wound infections in Wounded warriors being transported onboard military aircraft. Our specific aims included (1) to test the ability of medical grade larvae to withstand the rigors of U.S. Army aeromedical certification, including tolerance to change in pressure, temperature, and humidity inside ground-based chambers; (2) to evaluate the efficacy of the medical grade larvae during a high-vibration rotary-wing medical transport flight; and (3) to gain U.S. Army aeromedical certification and U.S. Air Force safe-to-fly approval and begin the steps needed to deploy/implement the use of medicinal maggots in patient care regimes for medical airlift standard operating procedures. This report outlines the ground-based and initial air-based tests performed during the study. Maggot mortality was very low during all tests, with a mortality rate of less than 1%. Maggot growth rates in wound arenas were mixed but generally depended on temperature. Overall, the results of these tests suggest that medicinal maggots can withstand the rigors of aeromedical evacuation flights in simulated flight environments and rotary- or fixed-wing aircraft. PMID:25939116

  13. Experimental flight test vibration measurements and nondestructive inspection on a USCG HC-130H aircraft

    NASA Technical Reports Server (NTRS)

    Moore, D. G.; Jones, C. R.; Mihelic, J. E.; Barnes, J. D.

    1998-01-01

    This paper presents results of experimental flight test vibration measurements and structural inspections performed by the Federal Aviation Administration's Airworthiness Assurance NDI Validation Center (AANC) at Sandia National Laboratories and the US Coast Guard Aircraft Repair and Supply Center (ARSC). Structural and aerodynamic changes induced by mounting a Forward Looking Infrared (FLIR) system on a USCG HC-130H aircraft are described. The FLIR adversely affected the air flow characteristics and structural vibration on the external skin of the aircraft's right main wheel well fairing. Upon initial discovery of skin cracking and visual observation of skin vibration in flight by the FLIR, a baseline flight without the FLIR was conducted and compared to other measurements with the FLIR installed. Nondestructive inspection procedures were developed to detect cracks in the skin and supporting structural elements and document the initial structural condition of the aircraft. Inspection results and flight test vibration data revealed that the FLIR created higher than expected flight loading and was the possible source of the skin cracking. The Coast Guard performed significant structural repair and enhancement on this aircraft, and additional in-flight vibration measurements were collected on the strengthened area both with and without the FLIR installed. After three months of further operational FLIR usage, the new aircraft skin with the enhanced structural modification was reinspected and found to be free of flaws. Additional US Coast Guard HC-130H aircraft are now being similarly modified to accommodate this FLIR system. Measurements of in- flight vibration levels with and without the FLIR installed, and both before and after the structural enhancement and repair were conducted on the skin and supporting structure in the aircraft's right main wheel fairing. Inspection results and techniques developed to verify the aircraft's structural integrity are discussed.

  14. Human-centered aircraft automation: A concept and guidelines

    NASA Technical Reports Server (NTRS)

    Billings, Charles E.

    1991-01-01

    Aircraft automation is examined and its effects on flight crews. Generic guidelines are proposed for the design and use of automation in transport aircraft, in the hope of stimulating increased and more effective dialogue among designers of automated cockpits, purchasers of automated aircraft, and the pilots who must fly those aircraft in line operations. The goal is to explore the means whereby automation may be a maximally effective tool or resource for pilots without compromising human authority and with an increase in system safety. After definition of the domain of the aircraft pilot and brief discussion of the history of aircraft automation, a concept of human centered automation is presented and discussed. Automated devices are categorized as a control automation, information automation, and management automation. The environment and context of aircraft automation are then considered, followed by thoughts on the likely future of automation of that category.

  15. Recent developments in analysis of crack propagation and fracture of practical materials. [stress analysis in aircraft structures

    NASA Technical Reports Server (NTRS)

    Hardrath, H. F.; Newman, J. C., Jr.; Elber, W.; Poe, C. C., Jr.

    1978-01-01

    The limitations of linear elastic fracture mechanics in aircraft design and in the study of fatigue crack propagation in aircraft structures are discussed. NASA-Langley research to extend the capabilities of fracture mechanics to predict the maximum load that can be carried by a cracked part and to deal with aircraft design problems are reported. Achievements include: (1) improved stress intensity solutions for laboratory specimens; (2) fracture criterion for practical materials; (3) crack propagation predictions that account for mean stress and high maximum stress effects; (4) crack propagation predictions for variable amplitude loading; and (5) the prediction of crack growth and residual stress in built-up structural assemblies. These capabilities are incorporated into a first generation computerized analysis that allows for damage tolerance and tradeoffs with other disciplines to produce efficient designs that meet current airworthiness requirements.

  16. 41 CFR 102-33.380 - Who must report information to GSA on Government aircraft?

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... Management Federal Property Management Regulations System (Continued) FEDERAL MANAGEMENT REGULATION PERSONAL PROPERTY 33-MANAGEMENT OF GOVERNMENT AIRCRAFT Reporting Information on Government Aircraft Overview § 102... 41 Public Contracts and Property Management 3 2010-07-01 2010-07-01 false Who must...

  17. 77 FR 15291 - Airworthiness Directives; Airbus Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-03-15

    ...We propose to adopt a new airworthiness directive (AD) for all Airbus Model A300 B4-603, B4-605R, and B4-622R airplanes; Model A300 C4-605R Variant F airplanes; and Model A300 F4-600R series airplanes. This proposed AD was prompted by a report that chafing was detected between the autopilot electrical wiring conduit and the wing bottom skin. This proposed AD would require modifying the wiring......

  18. Optimization of the terrain following radar flight cues in special operations aircraft

    NASA Astrophysics Data System (ADS)

    Garman, Patrick J.; Trang, Jeff A.

    1995-05-01

    Over the past 18 months the Army has been developing a terrain following capability in it's next generation special operations aircraft (SOA), the MH-60K and the MH-47E. As two experimental test pilots assigned to the Army's Airworthiness Qualification Test Directorate of the US Army Aviation Technical Test Center, we would like to convey the role that human factors has played in the development of the MMR for terrain following operations in the SOA. In the MH-60K, the pilot remains the interface between the aircraft, via the flight controls and the processed radar data, and the flight director cues. The presentation of the processed radar data to the pilot significantly affects the overall system performance, and is directly driven by the way humans see, process, and react to stimuli. Our development has been centered around the optimization of this man-machine interface.

  19. Raptors and aircraft

    USGS Publications Warehouse

    Smith, D.G.; Ellis, D.H.; Johnson, T.H.; Glinski, Richard L.; Pendleton, Beth Giron; Moss, Mary Beth; LeFranc, Maurice N.=; Millsap, Brian A.; Hoffman, Stephen W.

    1988-01-01

    Less than 5% of all bird strikes of aircraft are by raptor species, but damage to airframe structure or jet engine dysfunction are likely consequences. Beneficial aircraft-raptor interactions include the use of raptor species to frighten unwanted birds from airport areas and the use of aircraft to census raptor species. Many interactions, however, modify the raptor?s immediate behavior and some may decrease reproduction of sensitive species. Raptors may respond to aircraft stimuli by exhibiting alarm, increased heart rate, flushing or fleeing and occasionally by directly attacking intruding aircraft. To date, most studies reveal that raptor responses to aircraft are brief and do not limit reproduction; however, additional study is needed.

  20. Lightning effects on aircraft

    NASA Technical Reports Server (NTRS)

    1977-01-01

    Direct and indirect effects of lightning on aircraft were examined in relation to aircraft design. Specific trends in design leading to more frequent lightning strikes were individually investigated. These trends included the increasing use of miniaturized, solid state components in aircraft electronics and electric power systems. A second trend studied was the increasing use of reinforced plastics and other nonconducting materials in place of aluminum skins, a practice that reduces the electromagnetic shielding furnished by a conductive skin.

  1. Aircraft fire safety research

    NASA Technical Reports Server (NTRS)

    Botteri, Benito P.

    1987-01-01

    During the past 15 years, very significant progress has been made toward enhancing aircraft fire safety in both normal and hostile (combat) operational environments. Most of the major aspects of the aircraft fire safety problem are touched upon here. The technology of aircraft fire protection, although not directly applicable in all cases to spacecraft fire scenarios, nevertheless does provide a solid foundation to build upon. This is particularly true of the extensive research and testing pertaining to aircraft interior fire safety and to onboard inert gas generation systems, both of which are still active areas of investigation.

  2. Hypersonic aircraft design

    NASA Technical Reports Server (NTRS)

    Alkamhawi, Hani; Greiner, Tom; Fuerst, Gerry; Luich, Shawn; Stonebraker, Bob; Wray, Todd

    1990-01-01

    A hypersonic aircraft is designed which uses scramjets to accelerate from Mach 6 to Mach 10 and sustain that speed for two minutes. Different propulsion systems were considered and it was decided that the aircraft would use one full scale turbofan-ramjet. Two solid rocket boosters were added to save fuel and help the aircraft pass through the transonic region. After considering aerodynamics, aircraft design, stability and control, cooling systems, mission profile, and landing systems, a conventional aircraft configuration was chosen over that of a waverider. The conventional design was chosen due to its landing characteristics and the relative expense compared to the waverider. Fuel requirements and the integration of the engine systems and their inlets are also taken into consideration in the final design. A hypersonic aircraft was designed which uses scramjets to accelerate from Mach 6 to Mach 10 and sustain that speed for two minutes. Different propulsion systems were considered and a full scale turbofan-ramjet was chosen. Two solid rocket boosters were added to save fuel and help the aircraft pass through the transonic reqion. After the aerodynamics, aircraft design, stability and control, cooling systems, mission profile, landing systems, and their physical interactions were considered, a conventional aircraft configuration was chosen over that of a waverider. The conventional design was chosen due to its landing characteristics and the relative expense compared to the waverider. Fuel requirements and the integration of the engine systems and their inlets were also considered in the designing process.

  3. 41 CFR 102-33.190 - What are the aircraft operations and ownership costs for which we must account?

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... Parts Accounting for the Cost of Government Aircraft § 102-33.190 What are the aircraft operations and... Government aircraft as described in the “Government Aircraft Cost Accounting Guide” (CAG), which follows OMB... 41 Public Contracts and Property Management 3 2011-01-01 2011-01-01 false What are the...

  4. 41 CFR 102-33.190 - What are the aircraft operations and ownership costs for which we must account?

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... Parts Accounting for the Cost of Government Aircraft § 102-33.190 What are the aircraft operations and... Government aircraft as described in the “Government Aircraft Cost Accounting Guide” (CAG), which follows OMB... 41 Public Contracts and Property Management 3 2013-07-01 2013-07-01 false What are the...

  5. Human Factors In Aircraft Automation

    NASA Technical Reports Server (NTRS)

    Billings, Charles

    1995-01-01

    Report presents survey of state of art in human factors in automation of aircraft operation. Presents examination of aircraft automation and effects on flight crews in relation to human error and aircraft accidents.

  6. 41 CFR 102-33.415 - When may we declassify an aircraft and remove it from our Federal aircraft inventory?

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... Contracts and Property Management Federal Property Management Regulations System (Continued) FEDERAL MANAGEMENT REGULATION PERSONAL PROPERTY 33-MANAGEMENT OF GOVERNMENT AIRCRAFT Reporting Information on... 41 Public Contracts and Property Management 3 2010-07-01 2010-07-01 false When may we...

  7. General Aviation Aircraft Reliability Study

    NASA Technical Reports Server (NTRS)

    Pettit, Duane; Turnbull, Andrew; Roelant, Henk A. (Technical Monitor)

    2001-01-01

    This reliability study was performed in order to provide the aviation community with an estimate of Complex General Aviation (GA) Aircraft System reliability. To successfully improve the safety and reliability for the next generation of GA aircraft, a study of current GA aircraft attributes was prudent. This was accomplished by benchmarking the reliability of operational Complex GA Aircraft Systems. Specifically, Complex GA Aircraft System reliability was estimated using data obtained from the logbooks of a random sample of the Complex GA Aircraft population.

  8. Cable Tensiometer for Aircraft

    NASA Technical Reports Server (NTRS)

    Nunnelee, Mark (Inventor)

    2008-01-01

    The invention is a cable tensiometer that can be used on aircraft for real-time, in-flight cable tension measurements. The invention can be used on any aircraft cables with high precision. The invention is extremely light-weight, hangs on the cable being tested and uses a dual bending beam design with a high mill-volt output to determine tension.

  9. Lightning protection of aircraft

    NASA Technical Reports Server (NTRS)

    Fisher, F. A.; Plumer, J. A.

    1977-01-01

    The current knowledge concerning potential lightning effects on aircraft and the means that are available to designers and operators to protect against these effects are summarized. The increased use of nonmetallic materials in the structure of aircraft and the constant trend toward using electronic equipment to handle flight-critical control and navigation functions have served as impetus for this study.

  10. Civil aircraft accident investigation.

    PubMed

    Haines, Daniel

    2013-01-01

    This talk reviews some historic aircraft accidents and some more recent. It reflects on the division of accident causes, considering mechanical failures and aircrew failures, and on aircrew training. Investigation results may lead to improved aircraft design, and to appropriate crew training. PMID:24057309

  11. 41 CFR 102-33.390 - What information must we report on Government aircraft?

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 41 Public Contracts and Property Management 3 2010-07-01 2010-07-01 false What information must we... Federal Property Management Regulations System (Continued) FEDERAL MANAGEMENT REGULATION PERSONAL PROPERTY 33-MANAGEMENT OF GOVERNMENT AIRCRAFT Reporting Information on Government Aircraft Overview §...

  12. How Effective Is Communication Training For Aircraft Crews

    NASA Technical Reports Server (NTRS)

    Linde, Charlotte; Goguen, Joseph; Devenish, Linda

    1992-01-01

    Report surveys communication training for aircraft crews. Intended to alleviate problems caused or worsened by poor communication and coordination among crewmembers. Focuses on two training methods: assertiveness training and grid-management training. Examines theoretical background of methods and attempts made to validate their effectiveness. Presents criteria for evaluating applicability to aviation environment. Concludes communication training appropriate for aircraft crews.

  13. Why aircraft disinsection?

    PubMed Central

    Gratz, N. G.; Steffen, R.; Cocksedge, W.

    2000-01-01

    A serious problem is posed by the inadvertent transport of live mosquitoes aboard aircraft arriving from tropical countries where vector-borne diseases are endemic. Surveys at international airports have found many instances of live insects, particularly mosquitoes, aboard aircraft arriving from countries where malaria and arboviruses are endemic. In some instances mosquito species have been established in countries in which they have not previously been reported. A serious consequence of the transport of infected mosquitoes aboard aircraft has been the numerous cases of "airport malaria" reported from Europe, North America and elsewhere. There is an important on-going need for the disinsection of aircraft coming from airports in tropical disease endemic areas into nonendemic areas. The methods and materials available for use in aircraft disinsection and the WHO recommendations for their use are described. PMID:10994283

  14. Hypersonic reconnaissance aircraft

    NASA Technical Reports Server (NTRS)

    Bulk, Tim; Chiarini, David; Hill, Kevin; Kunszt, Bob; Odgen, Chris; Truong, Bon

    1992-01-01

    A conceptual design of a hypersonic reconnaissance aircraft for the U.S. Navy is discussed. After eighteen weeks of work, a waverider design powered by two augmented turbofans was chosen. The aircraft was designed to be based on an aircraft carrier and to cruise 6,000 nautical miles at Mach 4;80,000 feet and above. As a result the size of the aircraft was only allowed to have a length of eighty feet, fifty-two feet in wingspan, and roughly 2,300 square feet in planform area. Since this is a mainly cruise aircraft, sixty percent of its 100,000 pound take-off weight is JP fuel. At cruise, the highest temperature that it will encounter is roughly 1,100 F, which can be handled through the use of a passive cooling system.

  15. Flight Safety Aircraft Risk: A Growing Problem

    NASA Astrophysics Data System (ADS)

    Haber, J. M.

    2012-01-01

    In recent years there has been a growing awareness of the need to have appropriate criteria for protection of aircraft from debris resulting from the flight termination of a malfunctioning space booster. There have been several sequences of events that have interacted to bring us to the current risk management problem. With the advent of the US initiative to have common flight safety analysis processes and criteria, it was recognized that the traditional aircraft protection approach was inadequate. It did not consider the added public concern for catastrophic events. While the probability may have been small for downing a large commercial passenger plane, the public outrage if it happened would not be adequately measured by the individual risk to passengers nor the collective (societal risk) presented by a single airplane. Over a period of a number of years the US has developed and evolved a criterion to address catastrophic risk protection. Beginning in the same time period, it was recognized the assertion that all debris with masses greater than one gram were lethal to aircraft was unduly conservative. Over this same period initiatives have been developed to refine aircraft vulnerability models. There were, however, two significant unconservative assumptions that were made in the early years. It was presumed that significant risk to aircraft could only occur in the launch area. In addition, aircraft risk assessments, when they were made were based on debris lists designed to protect people on the ground (typically debris with an impact kinetic energy greater than 11 ft-lb). Good debris lists for aircraft protection do not yet exist. However, it has become increasingly clear that even with partial breakup lists large regions were required from which aircraft flight would be restricted using the normal exclusion approaches. We provide a review of these events and an indication of the way forward.

  16. Predicting visibility of aircraft.

    PubMed

    Watson, Andrew; Ramirez, Cesar V; Salud, Ellen

    2009-05-20

    Visual detection of aircraft by human observers is an important element of aviation safety. To assess and ensure safety, it would be useful to be able to be able to predict the visibility, to a human observer, of an aircraft of specified size, shape, distance, and coloration. Examples include assuring safe separation among aircraft and between aircraft and unmanned vehicles, design of airport control towers, and efforts to enhance or suppress the visibility of military and rescue vehicles. We have recently developed a simple metric of pattern visibility, the Spatial Standard Observer (SSO). In this report we examine whether the SSO can predict visibility of simulated aircraft images. We constructed a set of aircraft images from three-dimensional computer graphic models, and measured the luminance contrast threshold for each image from three human observers. The data were well predicted by the SSO. Finally, we show how to use the SSO to predict visibility range for aircraft of arbitrary size, shape, distance, and coloration.

  17. Predicting Visibility of Aircraft

    PubMed Central

    Watson, Andrew; Ramirez, Cesar V.; Salud, Ellen

    2009-01-01

    Visual detection of aircraft by human observers is an important element of aviation safety. To assess and ensure safety, it would be useful to be able to be able to predict the visibility, to a human observer, of an aircraft of specified size, shape, distance, and coloration. Examples include assuring safe separation among aircraft and between aircraft and unmanned vehicles, design of airport control towers, and efforts to enhance or suppress the visibility of military and rescue vehicles. We have recently developed a simple metric of pattern visibility, the Spatial Standard Observer (SSO). In this report we examine whether the SSO can predict visibility of simulated aircraft images. We constructed a set of aircraft images from three-dimensional computer graphic models, and measured the luminance contrast threshold for each image from three human observers. The data were well predicted by the SSO. Finally, we show how to use the SSO to predict visibility range for aircraft of arbitrary size, shape, distance, and coloration. PMID:19462007

  18. 41 CFR 301-70.800 - Whom may we authorize to travel on Government aircraft?

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... travel on Government aircraft? 301-70.800 Section 301-70.800 Public Contracts and Property Management...-INTERNAL POLICY AND PROCEDURE REQUIREMENTS Policies and Procedures for Agencies That Authorize Travel on Government Aircraft § 301-70.800 Whom may we authorize to travel on Government aircraft? You may...

  19. Small Autonomous Aircraft Servo Health Monitoring

    NASA Technical Reports Server (NTRS)

    Quintero, Steven

    2008-01-01

    Small air vehicles offer challenging power, weight, and volume constraints when considering implementation of system health monitoring technologies. In order to develop a testbed for monitoring the health and integrity of control surface servos and linkages, the Autonomous Aircraft Servo Health Monitoring system has been designed for small Uninhabited Aerial Vehicle (UAV) platforms to detect problematic behavior from servos and the air craft structures they control, This system will serve to verify the structural integrity of an aircraft's servos and linkages and thereby, through early detection of a problematic situation, minimize the chances of an aircraft accident. Embry-Riddle Aeronautical University's rotary-winged UAV has an Airborne Power management unit that is responsible for regulating, distributing, and monitoring the power supplied to the UAV's avionics. The current sensing technology utilized by the Airborne Power Management system is also the basis for the Servo Health system. The Servo Health system measures the current draw of the servos while the servos are in Motion in order to quantify the servo health. During a preflight check, deviations from a known baseline behavior can be logged and their causes found upon closer inspection of the aircraft. The erratic behavior nay include binding as a result of dirt buildup or backlash caused by looseness in the mechanical linkages. Moreover, the Servo Health system will allow elusive problems to be identified and preventative measures taken to avoid unnecessary hazardous conditions in small autonomous aircraft.

  20. 41 CFR 301-70.904 - Must travelers whom we carry on Government aircraft be authorized to travel?

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... Property Management Federal Travel Regulation System TEMPORARY DUTY (TDY) TRAVEL ALLOWANCES AGENCY... the aircraft management office or its representative in the organization that owns or hires...