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Sample records for aging airplane inspections

  1. 14 CFR 135.422 - Aging airplane inspections and records reviews for multiengine airplanes certificated with nine...

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... 14 Aeronautics and Space 3 2011-01-01 2011-01-01 false Aging airplane inspections and records... Maintenance, and Alterations § 135.422 Aging airplane inspections and records reviews for multiengine... aging airplane inspection and records review required by this section. During the inspection and...

  2. 14 CFR 135.422 - Aging airplane inspections and records reviews for multiengine airplanes certificated with nine...

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... 14 Aeronautics and Space 3 2010-01-01 2010-01-01 false Aging airplane inspections and records... Maintenance, and Alterations § 135.422 Aging airplane inspections and records reviews for multiengine... aging airplane inspection and records review required by this section. During the inspection and...

  3. 14 CFR 135.422 - Aging airplane inspections and records reviews for multiengine airplanes certificated with nine...

    Code of Federal Regulations, 2013 CFR

    2013-01-01

    ... 14 Aeronautics and Space 3 2013-01-01 2013-01-01 false Aging airplane inspections and records... Maintenance, and Alterations § 135.422 Aging airplane inspections and records reviews for multiengine... aging airplane inspection and records review required by this section. During the inspection and...

  4. 14 CFR 135.422 - Aging airplane inspections and records reviews for multiengine airplanes certificated with nine...

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ... 14 Aeronautics and Space 3 2014-01-01 2014-01-01 false Aging airplane inspections and records... Maintenance, and Alterations § 135.422 Aging airplane inspections and records reviews for multiengine... aging airplane inspection and records review required by this section. During the inspection and...

  5. 14 CFR 135.422 - Aging airplane inspections and records reviews for multiengine airplanes certificated with nine...

    Code of Federal Regulations, 2012 CFR

    2012-01-01

    ... 14 Aeronautics and Space 3 2012-01-01 2012-01-01 false Aging airplane inspections and records... Maintenance, and Alterations § 135.422 Aging airplane inspections and records reviews for multiengine... aging airplane inspection and records review required by this section. During the inspection and...

  6. 14 CFR 121.1105 - Aging airplane inspections and records reviews.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... 14 Aeronautics and Space 3 2011-01-01 2011-01-01 false Aging airplane inspections and records... Improvements § 121.1105 Aging airplane inspections and records reviews. (a) Applicability. This section applies... holder that the Administrator has completed the aging airplane inspection and records review required...

  7. 14 CFR 121.1105 - Aging airplane inspections and records reviews.

    Code of Federal Regulations, 2013 CFR

    2013-01-01

    ... 14 Aeronautics and Space 3 2013-01-01 2013-01-01 false Aging airplane inspections and records... Improvements § 121.1105 Aging airplane inspections and records reviews. (a) Applicability. This section applies... holder that the Administrator has completed the aging airplane inspection and records review required...

  8. 14 CFR 121.1105 - Aging airplane inspections and records reviews.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... 14 Aeronautics and Space 3 2010-01-01 2010-01-01 false Aging airplane inspections and records... Improvements § 121.1105 Aging airplane inspections and records reviews. (a) Applicability. This section applies... holder that the Administrator has completed the aging airplane inspection and records review required...

  9. 14 CFR 121.1105 - Aging airplane inspections and records reviews.

    Code of Federal Regulations, 2012 CFR

    2012-01-01

    ... 14 Aeronautics and Space 3 2012-01-01 2012-01-01 false Aging airplane inspections and records... Improvements § 121.1105 Aging airplane inspections and records reviews. (a) Applicability. This section applies... holder that the Administrator has completed the aging airplane inspection and records review required...

  10. 14 CFR 121.1105 - Aging airplane inspections and records reviews.

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ... 14 Aeronautics and Space 3 2014-01-01 2014-01-01 false Aging airplane inspections and records... Improvements § 121.1105 Aging airplane inspections and records reviews. (a) Applicability. This section applies... holder that the Administrator has completed the aging airplane inspection and records review required...

  11. 14 CFR 129.105 - Aging airplane inspections and records reviews for U.S.-registered multiengine aircraft.

    Code of Federal Regulations, 2013 CFR

    2013-01-01

    ... 14 Aeronautics and Space 3 2013-01-01 2013-01-01 false Aging airplane inspections and records... § 129.105 Aging airplane inspections and records reviews for U.S.-registered multiengine aircraft. (a... completed the aging airplane inspection and records review required by this section. During the...

  12. 14 CFR 129.105 - Aging airplane inspections and records reviews for U.S.-registered multiengine aircraft.

    Code of Federal Regulations, 2012 CFR

    2012-01-01

    ... 14 Aeronautics and Space 3 2012-01-01 2012-01-01 false Aging airplane inspections and records... § 129.105 Aging airplane inspections and records reviews for U.S.-registered multiengine aircraft. (a... completed the aging airplane inspection and records review required by this section. During the...

  13. 14 CFR 129.105 - Aging airplane inspections and records reviews for U.S.-registered multiengine aircraft.

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ... 14 Aeronautics and Space 3 2014-01-01 2014-01-01 false Aging airplane inspections and records... § 129.105 Aging airplane inspections and records reviews for U.S.-registered multiengine aircraft. (a... completed the aging airplane inspection and records review required by this section. During the...

  14. 14 CFR 129.105 - Aging airplane inspections and records reviews for U.S.-registered multiengine aircraft.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... 14 Aeronautics and Space 3 2010-01-01 2010-01-01 false Aging airplane inspections and records... § 129.105 Aging airplane inspections and records reviews for U.S.-registered multiengine aircraft. (a... completed the aging airplane inspection and records review required by this section. During the...

  15. 14 CFR 129.105 - Aging airplane inspections and records reviews for U.S.-registered multiengine aircraft.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... 14 Aeronautics and Space 3 2011-01-01 2011-01-01 false Aging airplane inspections and records... § 129.105 Aging airplane inspections and records reviews for U.S.-registered multiengine aircraft. (a... completed the aging airplane inspection and records review required by this section. During the...

  16. Structural integrity of future aging airplanes

    NASA Technical Reports Server (NTRS)

    Mcguire, Jack F.; Goranson, Ulf G.

    1992-01-01

    A multitude of design considerations is involved in ensuring the structural integrity of Boeing jet transports that have common design concepts validated by extensive analyses, tests, and three decades of service. As airplanes approach their design service objectives, the incidences of fatigue and corrosion may become widespread. Continuing airworthiness of the aging jet fleet requires diligent performance from the manufacturer, the airlines, and airworthiness authorities. Aging fleet support includes timely development of supplemental structural inspection documents applicable to selected older airplanes, teardown inspections of high-time airframes retired from service, fatigue testing of older airframes, and structural surveys of more than 130 airplanes operated throughout the world. Lessons learned from these activities are incorporated in service bulletin recommendations, production line modifications, and design manual updates. An overview of traditional Boeing fleet support activities and the anticipated benefits for future generations of commercial airplanes based on the continuous design improvement process are presented.

  17. The FAA aging airplane program plan for transport aircraft

    NASA Technical Reports Server (NTRS)

    Curtis, Dayton; Lewis, Jess

    1992-01-01

    The Federal Aviation Administration (FAA) Aging Airplane Program is focused on five program areas: maintenance, transport airplanes, commuter airplanes, airplane engines, and research. These programs are complementary and concurrent, and have been in effect since 1988. The programs address the aging airplane challenge through different methods, including policies, procedures, and hardware development. Each program is carefully monitored and its progress tracked to ensure that the needs of the FAA, the industry, and the flying public are being met.

  18. 77 FR 55105 - Aging Airplane Program: Widespread Fatigue Damage; Correction

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-09-07

    ... From the Federal Register Online via the Government Publishing Office DEPARTMENT OF TRANSPORTATION Federal Aviation Administration 14 CFR Parts 121 and 129 RIN 2120-AI05 Aging Airplane Program: Widespread... entitled ``Aging Airplane Program: Widespread Fatigue Damage'' (77 FR 30877), which corrected a final...

  19. 14 CFR 91.409 - Inspections.

    Code of Federal Regulations, 2012 CFR

    2012-01-01

    ... inspection. (e) Large airplanes (to which part 125 is not applicable), turbojet multiengine airplanes... airplane, turbojet multiengine airplane, turbopropeller-powered multiengine airplane, or...

  20. 14 CFR 91.409 - Inspections.

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ... inspection. (e) Large airplanes (to which part 125 is not applicable), turbojet multiengine airplanes... airplane, turbojet multiengine airplane, turbopropeller-powered multiengine airplane, or...

  1. Inspection of aging aircraft: A manufacturer's perspective

    NASA Technical Reports Server (NTRS)

    Hagemaier, Donald J.

    1992-01-01

    Douglas, in conjunction with operators and regulators, has established interrelated programs to identify and address issues regarding inspection of aging aircraft. These inspection programs consist of the following: Supplemental Inspection Documents; Corrosion Prevention and Control Documents; Repair Assessment Documents; and Service Bulletin Compliance Documents. In addition, airframe manufacturers perform extended airframe fatigue tests to deal with potential problems before they can develop in the fleet. Lastly, nondestructive inspection (NDI) plays a role in all these programs through the detection of cracks, corrosion, and disbonds. However, improved and more cost effective NDI methods are needed. Some methods such as magneto-optic imaging, electronic shearography, Diffractor-Sight, and multi-parameter eddy current testing appear viable for near-term improvements in NDI of aging aircraft.

  2. Emerging nondestructive inspection methods for aging aircraft

    SciTech Connect

    Beattie, A; Dahlke, L; Gieske, J

    1994-01-01

    This report identifies and describes emerging nondestructive inspection (NDI) methods that can potentially be used to inspect commercial transport and commuter aircraft for structural damage. The nine categories of emerging NDI techniques are: acoustic emission, x-ray computed tomography, backscatter radiation, reverse geometry x-ray, advanced electromagnetics, including magnetooptic imaging and advanced eddy current techniques, coherent optics, advanced ultrasonics, advanced visual, and infrared thermography. The physical principles, generalized performance characteristics, and typical applications associated with each method are described. In addition, aircraft inspection applications are discussed along with the associated technical considerations. Finally, the status of each technique is presented, with a discussion on when it may be available for use in actual aircraft maintenance programs. It should be noted that this is a companion document to DOT/FAA/CT-91/5, Current Nondestructive Inspection Methods for Aging Aircraft.

  3. 75 FR 69745 - Aging Airplane Program: Widespread Fatigue Damage

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-11-15

    ...This final rule amends FAA regulations pertaining to certification and operation of transport category airplanes to prevent widespread fatigue damage in those airplanes. For certain existing airplanes, the rule requires design approval holders to evaluate their airplanes to establish a limit of validity of the engineering data that supports the structural maintenance program (LOV). For future......

  4. A computerized self-compensating system for ultrasonic inspection of airplane structures

    SciTech Connect

    Komsky, I.N.; Achenbach, J.D.; Hagemaier, D.

    1993-12-31

    Application of a self-compensating technique for ultrasonic inspection of airplane structures makes it possible not only to detect cracks in the different layers of joints but also to obtain information on crack sizes. A prototype computerized ultrasonic system, which utilizes the self-compensating method, has been developed for non-destructive inspection of multilayered airplane structures with in-between sealants, such as bolted joints in tail connections. Industrial applications of the system would require deployment of commercially available portable modules for data acquisition and processing. A portable ultrasonic flaw detector EPOCH II manual scanners and HandiScan, and SQL and FCS software modules form the PC-based TestPro system have been selected for initial tests. A pair of contact angle-beam transducers were used to generate shear waves in the material. Both hardware and software components of the system have been modified for the application in conjunction with the self-compensating technique. The system has bene tested on two calibration specimens with artificial flaws of different sizes in internal layers of multilayered structures. Ultrasonic signals transmitted through and reflected from the artificial flaws have bene discriminated and characterized using multiple time domain amplitude gates. Then the ratios of the reflection and transmission coefficients, R/T, were calculated for several positions of the transducers. Inspection of measured R/T curves shows it is difficult to visually associate curve shapes with corresponding flaw sizes and orientation. Hence for online classification of these curve shapes, application of an adaptive signal classifier was considered. Several different types and configurations of the classifiers, including a neural network, have been tested. Test results showed that improved performance of the classifier can be achieved by combination of a back-propagation neural network with a signal pre-processing module.

  5. 77 FR 30877 - Aging Airplane Program: Widespread Fatigue Damage; Technical Amendment

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-05-24

    ..., 121, and 129 [Docket No. FAA-2006-24281; Amendment Nos. 26-6, 121-360, 129-51] RIN 2120-AI05 Aging... On November 15, 2010, the FAA published a final rule entitled, ``Aging Airplane Program: Widespread... Airbus to comply with Sec. 26.21. As stated in the preamble of the rule entitled, ``Aging...

  6. 75 FR 65051 - Consensus Standards, Standard Practice for Inspection of Airplane Electrical Wiring Systems

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-10-21

    ... of Airplane Electrical Wiring Systems. FOR FURTHER INFORMATION CONTACT: James Brady, Aerospace... Development and Use of Voluntary Consensus Standards and in Conformity Assessment Activities,'' dated February 10, 1998, industry and the FAA have been working with ASTM International to develop...

  7. Ageing airplane repair assessment program for Airbus A300

    NASA Technical Reports Server (NTRS)

    Gaillardon, J. M.; Schmidt, HANS-J.; Brandecker, B.

    1992-01-01

    This paper describes the current status of the repair categorization activities and includes all details about the methodologies developed for determination of the inspection program for the skin on pressurized fuselages. For inspection threshold determination two methods are defined based on fatigue life approach, a simplified and detailed method. The detailed method considers 15 different parameters to assess the influences of material, geometry, size location, aircraft usage, and workmanship on the fatigue life of the repair and the original structure. For definition of the inspection intervals a general method is developed which applies to all concerned repairs. For this the initial flaw concept is used by considering 6 parameters and the detectable flaw sizes depending on proposed nondestructive inspection methods. An alternative method is provided for small repairs allowing visual inspection with shorter intervals.

  8. Evaluation of NRC maintenance team inspection reports for managing aging

    SciTech Connect

    Fresco, A.; Gunther, W.

    1991-01-01

    A nuclear power plant's maintenance program is the principal vehicle through which age-related degradation is managed. Over the past two years, the NRC (Nuclear Regulatory Commission) has evaluated the maintenance program of every nuclear power plant in the U.S. The reports issued on these in-depth team inspections have been reviewed to ascertain the strengths and weaknesses of the programs as related to the need to understand and manage the effects of aging on nuclear power plant systems, structures, and components. Selected results of this review are presented in this paper, including examples of inspection and monitoring techniques successfully used by utilities to detect degradation due to aging. Attributes of plant maintenance programs where the NRC inspectors felt that improvement was needed to properly address the aging issue are also discussed. 6 refs., 1 tab.

  9. Final Report Inspection of Aged/Degraded Containments Program.

    SciTech Connect

    Naus, Dan J; Ellingwood, B R; Oland, C Barry

    2005-09-01

    The Inspection of Aged/Degraded Containments Program had primary objectives of (1) understanding the significant factors relating corrosion occurrence, efficacy of inspection, and structural capacity reduction of steel containments and liners of reinforced concrete containments; (2) providing the United States Nuclear Regulatory Commission (USNRC) reviewers a means of establishing current structural capacity margins or estimating future residual structural capacity margins for steel containments, and concrete containments as limited by liner integrity; (3) providing recommendations, as appropriate, on information to be requested of licensees for guidance that could be utilized by USNRC reviewers in assessing the seriousness of reported incidences of containment degradation; and (4) providing technical assistance to the USNRC (as requested) related to concrete technology. Primary program accomplishments have included development of a degradation assessment methodology; reviews of techniques and methods for inspection and repair of containment metallic pressure boundaries; evaluation of high-frequency acoustic imaging, magnetostrictive sensor, electromagnetic acoustic transducer, and multimode guided plate wave technologies for inspection of inaccessible regions of containment metallic pressure boundaries; development of a continuum damage mechanics-based approach for structural deterioration; establishment of a methodology for reliability-based condition assessments of steel containments and liners; and fragility assessments of steel containments with localized corrosion. In addition, data and information assembled under this program has been transferred to the technical community through review meetings and briefings, national and international conference participation, technical committee involvement, and publications of reports and journal articles. Appendix A provides a listing of program reports, papers, and publications; and Appendix B contains a listing of

  10. 77 FR 63716 - Airworthiness Directives; Airbus Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-10-17

    ...-180-AD; Amendment 39-17213; AD 2012-20-07] RIN 2120-AA64 Airworthiness Directives; Airbus Airplanes... -112 airplanes; and all Model A319, A320, and A321 series airplanes. That AD currently requires... incorporate revised fuel maintenance and inspection tasks, and adds airplanes to the applicability. This...

  11. 77 FR 60325 - Airworthiness Directives; Airbus Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-10-03

    ... Federal Aviation Administration 14 CFR Part 39 RIN 2120-AA64 Airworthiness Directives; Airbus Airplanes... series airplanes. For certain airplanes, that NPRM proposed repetitive inspections for cracks of the... Model 318 airplanes from the applicability. That NPRM was prompted by reports of cracks found in...

  12. 78 FR 26720 - Airworthiness Directives; The Boeing Company Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-05-08

    ... airplanes. The existing AD requires, for certain airplanes, an inspection to determine the material of an..., dated December 22, 2010, but airplane groups were changed based on the material composition of the.... The proposed AD would add, for certain airplanes, an inspection to determine material type of...

  13. Results from the Nuclear Plant Aging Research Program: Their use in inspection activities

    SciTech Connect

    Gunther, W.; Taylor, J. )

    1990-09-01

    The US NCR's Nuclear Plant Aging Research (NPAR) Program has determined the susceptibility to aging of components and systems, and the potential for aging to impact plant safety and availability. The NPAR Program also identified methods for detecting and mitigating aging in components. This report describes the NPAR results which can enhance NRC inspection activities. Recommendations are provided for communicating pertinent information to NRC inspectors. These recommendations are based on a detailed assessment of the NRC's Inspection Program, and feedback from resident and regional inspectors as described within. Examples of NPAR report summaries and aging inspection guides for components and systems are included. 13 refs., 3 figs., 4 tabs.

  14. 77 FR 19067 - Airworthiness Directives; Airbus Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-03-30

    ...-047-AD; Amendment 39-16992; AD 2012-06-11] RIN 2120-AA64 Airworthiness Directives; Airbus Airplanes... A321-131, -211, -212, and -231 airplanes. This AD requires a rotating probe inspection for cracking of..., International Branch, ANM-116, Transport Airplane Directorate, FAA, 1601 Lind Avenue SW., Renton,...

  15. 78 FR 49915 - Airworthiness Directives; Airbus Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-08-16

    ...-147-AD; Amendment 39-17528; AD 2013-15-12] RIN 2120-AA64 Airworthiness Directives; Airbus Airplanes... airplanes. AD 2004-15-07 required repetitive inspections for fatigue cracking of the area around the...-116, Transport Airplane Directorate, FAA, 1601 Lind Avenue SW., Renton, WA 98057-3356; telephone...

  16. Inspection Time and Cognitive Abilities in Twins Aged 7 to 17 Years: Age-Related Changes, Heritability and Genetic Covariance

    ERIC Educational Resources Information Center

    Edmonds, Caroline J.; Isaacs, Elizabeth B.; Visscher, Peter M.; Rogers, Mary; Lanigan, Julie; Singhal, Atul; Lucas, Alan; Gringras, Paul; Denton, Jane; Deary, Ian J.

    2008-01-01

    We studied the age-related differences in inspection time and multiple cognitive domains in a group of monozygotic (MZ) and dizygotic (DZ) twins aged 7 to 17 years. Data from 111 twin pairs and 19 singleton siblings were included. We found clear age-related trends towards more efficient visual information processing in older participants. There…

  17. Aging aircraft NDI Development and Demonstration Center (AANC): An overview. [nondestructive inspection

    NASA Technical Reports Server (NTRS)

    Walter, Patrick L.

    1992-01-01

    A major center with emphasis on validation of nondestructive inspection (NDI) techniques for aging aircraft, the Aging Aircraft NDI Development and Demonstration Center (AANC), has been funded by the FAA at Sandia National Laboratories. The Center has been assigned specific tasks in developing techniques for the nondestructive inspection of static engine parts, assessing inspection reliability (POD experiments), developing testbeds for NDI validation, maintaining a FAA library of characterized aircraft structural test specimens, and leasing a hangar to house a high flight cycle transport aircraft for use as a full scale test bed.

  18. The structure of airplane fabrics

    NASA Technical Reports Server (NTRS)

    Walen, E Dean

    1920-01-01

    This report prepared by the Bureau of Standards for the National Advisory Committee for Aeronautics supplies the necessary information regarding the apparatus and methods of testing and inspecting airplane fabrics.

  19. 77 FR 12158 - Airworthiness Directives; Bombardier, Inc. Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-02-29

    .... Airplanes AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Final rule. SUMMARY: We are... Series 900) airplanes. That AD currently requires repetitive detailed inspections for cracking or... inspection interval for certain airplanes. This new AD adds a new modification of the MLG door...

  20. Managing aging in nuclear power plants: Insights from NRC's Maintenance Team Inspection reports

    SciTech Connect

    Fresco, A.; Subudhi, M.

    1992-01-01

    A plant's maintenance program is the principal vehicle through which age-related degradation is managed. From 1988 to 1991, the NRC evaluated the maintenance program of every nuclear power plant in the United States. Forty-four out of a total of sixty-seven of the reports issued on these in-depth team inspections have been reviewed for insights into the strengths and weaknesses of the programs as related to the need to understand and manage the effects of aging on nuclear plant structures, systems, and components (SSCs). Relevant information has been extracted from these inspection reports sorted into several categories; including Specific Aging Insights, Preventive Maintenance, Predictive Maintenance and Condition Monitoring, Post Maintenance Testing, Failure Trending, Root Cause Analysis and Usage of Probabilistic Risk Assessment in the Maintenance Process. Specific examples of inspection and monitoring techniques successfully used by utilities to detect degradation due to aging have been identified.

  1. Managing aging in nuclear power plants: Insights from NRC`s Maintenance Team Inspection reports

    SciTech Connect

    Fresco, A.; Subudhi, M.

    1992-12-31

    A plant`s maintenance program is the principal vehicle through which age-related degradation is managed. From 1988 to 1991, the NRC evaluated the maintenance program of every nuclear power plant in the United States. Forty-four out of a total of sixty-seven of the reports issued on these in-depth team inspections have been reviewed for insights into the strengths and weaknesses of the programs as related to the need to understand and manage the effects of aging on nuclear plant structures, systems, and components (SSCs). Relevant information has been extracted from these inspection reports sorted into several categories; including Specific Aging Insights, Preventive Maintenance, Predictive Maintenance and Condition Monitoring, Post Maintenance Testing, Failure Trending, Root Cause Analysis and Usage of Probabilistic Risk Assessment in the Maintenance Process. Specific examples of inspection and monitoring techniques successfully used by utilities to detect degradation due to aging have been identified.

  2. 75 FR 39189 - Airworthiness Directives; The Boeing Company Model 747 Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-07-08

    ... airplanes. This proposed AD would require repetitive inspections for cracking in the body skin around the aft corners of the nose wheel well; for certain airplanes, repetitive inspections for cracking in the... cracking in the body skin and the skin splice plate; for certain airplanes, an inspection for steel...

  3. 78 FR 71989 - Airworthiness Directives; The Boeing Company Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-12-02

    ...-8F series airplanes. This AD requires repetitive ultrasonic or dye penetrant inspections for cracking.... (2) Dye penetrant inspection for cracking of the bolts and barrel nuts. Whenever a dye penetrant... this AD. (2) For airplanes on which a dye penetrant inspection was done, do the required actions at...

  4. 78 FR 43766 - Airworthiness Directives; The Boeing Company Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-07-22

    ... cracking of the rear spar upper chord radius; for certain other airplanes, repetitive inspections for..., repetitive inspections for cracking of the rear spar upper chord radius; for certain other airplanes... horizontal flange. (3) Do a detailed or HFEC inspection for cracking in the rear spar upper chord radius....

  5. Dynamic thermal tomography for nondestructive inspection of aging aircraft

    SciTech Connect

    Del Grande, N.K.; Dolan, K.W.; Durbin, P.F.; Gorvad, M.R.; Shapiro, A.B.

    1993-11-01

    The authors apply dual-band infrared (DBIR) imaging as a dynamic thermal tomography tool for wide area inspection of a Boeing 737 aircraft and several Boeing KC-135 aircraft panels. The analyses are discussed in this report. After flash-heating the aircraft skin, they record synchronized DBIR images every 40 ms, from onset to 8 seconds after the heat flash. They analyze selective DBIR image ratios which enhance surface temperature contrast and remove surface-emissivity clutter. The Boeing 737 and KC-135 aircraft fuselage panels have varying percent thickness losses from corrosion. They established the correlation of percent thickness loss with surface temperature rise (above ambient) for a partially corroded F-18 wing box structure and several aluminum plates which had 6 to 60% thickness losses at milled flat-bottom hole sites. Based on this correlation, lap splice temperatures rise 1C per 24 {plus_minus} 5% material loss at 0.4 s after the heat flash. They tabulate and map corrosion-related percent thickness loss effects for the riveted Boeing 737, and the riveted Boeing KKC-135. They map the fuselage composite thermal inertia, based on the (inverse) slope of the surface temperature versus inverse square root of time. Composite thermal inertia maps characterized shallow skin defects within the lap splice at early times (< 0.3 s) and deeper skin defects within the lap splice at late times (> 0.4 s). Late time composite thermal inertia maps depict where corrosion-related thickness losses occur (e.g., on the inside of the Boeing 737 lap splice, beneath the galley and the latrine). Lap splice sites on a typical Boeing KC-135 panel with low composite thermal inertia values had high skin-thickness losses from corrosion.

  6. Managing aging in nuclear power plants: Insights from NRC maintenance team inspection reports

    SciTech Connect

    Fresco, A.; Subudhi, M.; Gunther, W.; Grove, E.; Taylor, J.

    1993-12-01

    A plant`s maintenance program is the principal vehicle through which age-related degradation is managed. From 1988 to 1991, the NRC evaluated the maintenance program of every nuclear power plant in the United States. Forty-four out of a total of 67 of the reports issued on these in-depth team inspections were reviewed for insights into the strengths and weaknesses of the programs as related to the need to understand and manage the effects of aging on nuclear plant systems, structures, and components. Relevant information was extracted from these inspection reports and sorted into several categories, including Specific Aging Insights, Preventive Maintenance, Predictive Maintenance and Condition Monitoring, Post Maintenance Testing, Failure Trending, Root Cause Analysis and Usage of Probabilistic Risk Assessment in the Maintenance Process. Specific examples of inspection and monitoring techniques successfully used by utilities to detect degradation due to aging have been identified. The information also was sorted according to systems and components, including: Auxiliary Feedwater, Main Feedwater, High Pressure Injection for both BWRs and PWRs, Service Water, Instrument Air, and Emergency Diesel Generator Air Start Systems, and Emergency Diesel Generators Air Start Systems, emergency diesel generators, electrical components such as switchgear, breakers, relays, and motor control centers, motor operated valves and check valves. This information was compared to insights gained from the Nuclear Plant Aging Research (NPAR) Program. Attributes of plant maintenance programs where the NRC inspectors felt that improvement was needed to properly address the aging issue also are discussed.

  7. 78 FR 35110 - Airworthiness Directives; Piper Aircraft, Inc. Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-06-12

    ... requires visual repetitive inspections, expanding the inspection scope to include the entirety of each... inspection criteria to clarify the visual inspection. We also identified that airplanes with the STC SA240CH heat exchanger installed may not have all of the parts requiring the visual inspection. (Information...

  8. 77 FR 63714 - Airworthiness Directives; The Boeing Company Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-10-17

    ... Airplanes AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Final rule. SUMMARY: We are adopting a... airplanes. This AD was prompted by a report of elevator vibration and bearing swage failures. This AD requires, for certain airplanes, repetitive inspections for any discrepancies (such as a gap or a...

  9. 78 FR 57542 - Airworthiness Directives; The Boeing Company Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-09-19

    ... Airplanes AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Notice of proposed rulemaking (NPRM... Boeing Company Model 777-200 and -300 series airplanes. AD 2012-12-08 requires an inspection for the part... determined that additional airplanes may be subject to the identified unsafe condition. This proposed...

  10. 77 FR 12166 - Airworthiness Directives; The Boeing Company Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-02-29

    ... Company Airplanes AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Final rule. SUMMARY: We are... series airplanes. That AD currently requires inspecting certain power feeder wire bundles for damage... certain airplanes. This AD was prompted by a report that a power feeder wire bundle chafed against...

  11. 78 FR 73744 - Airworthiness Directives; The Boeing Company Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-12-09

    ... Airplanes AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Supplemental notice of proposed... series airplanes. The SNPRM proposed to require inspecting for a serial number that starts with the... action revises the SNPRM by revising the applicable thresholds from flight cycles on the airplane...

  12. 78 FR 20229 - Airworthiness Directives; The Boeing Company Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-04-04

    ... Airplanes AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Final rule. SUMMARY: We are..., -800, -900, and -900ER series airplanes. That AD currently requires repetitive inspections of the aft... Boeing Commercial Airplanes, Attention: Data & Services Management, P.O. Box 3707, MC 2H-65, Seattle,...

  13. 77 FR 73902 - Airworthiness Directives; Bombardier, Inc. Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-12-12

    ... revision, which requires an improved non-destructive inspection procedure; and adds airplanes to the... existing AWL task by introducing an improved Non-Destructive Inspection (NDI) procedure to ensure...

  14. Dual-band infrared imaging applications: Locating buried minefields, mapping sea ice, and inspecting aging aircraft

    SciTech Connect

    Del Grande, N.K.; Durbin, P.F.; Perkins, D.E.

    1992-09-01

    We discuss the use of dual-band infrared (DBIR) imaging for three quantitative NDE applications: location buried surrogate mines, mapping sea ice thicknesses and inspecting subsurface flaws in aging aircraft parts. Our system of DBIR imaging offers a unique combination of thermal resolution, detectability, and interpretability. Pioneered at Lawrence Livermore Laboratory, it resolves 0.2 {degrees}C differences in surface temperatures needed to identify buried mine sites and distinguish them from surface features. It produces both surface temperature and emissivity-ratio images of sea ice, needed to accurately map ice thicknesses (e.g., by first removing clutter due to snow and surface roughness effects). The DBIR imaging technique depicts subsurface flaws in composite patches and lap joints of aircraft, thus providing a needed tool for aging aircraft inspections.

  15. Dual-band infrared imaging applications: Locating buried minefields, mapping sea ice, and inspecting aging aircraft

    NASA Astrophysics Data System (ADS)

    Delgrande, N. K.; Durbin, P. F.; Perkins, D. E.

    1992-09-01

    We discuss the use of dual-band infrared (DBIR) imaging for three quantitative NDE applications: location buried surrogate mines, mapping sea ice thicknesses, and inspecting subsurface flaws in aging aircraft parts. Our system of DBIR imaging offers a unique combination of thermal resolution, detectability, and interpretability. Pioneered at Lawrence Livermore Laboratory, it resolves 0.2 C differences in surface temperatures needed to identify buried mine sites and distinguish them from surface features. It produces both surface temperature and emissivity-ratio images of sea ice, needed to accurately map ice thicknesses (e.g., by first removing clutter due to snow and surface roughness effects). The DBIR imaging technique depicts subsurface flaws in composite patches and lap joints of aircraft, thus providing a needed tool for aging aircraft inspections.

  16. 14 CFR 91.409 - Inspections.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... responsibility, the making of reports, and the keeping of records and technical reference material; (ii) An... inspection. (e) Large airplanes (to which part 125 is not applicable), turbojet multiengine airplanes, turbopropeller-powered multiengine airplanes, and turbine-powered rotorcraft. No person may operate a...

  17. 14 CFR 91.409 - Inspections.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... responsibility, the making of reports, and the keeping of records and technical reference material; (ii) An... inspection. (e) Large airplanes (to which part 125 is not applicable), turbojet multiengine airplanes, turbopropeller-powered multiengine airplanes, and turbine-powered rotorcraft. No person may operate a...

  18. 14 CFR 91.409 - Inspections.

    Code of Federal Regulations, 2013 CFR

    2013-01-01

    ... responsibility, the making of reports, and the keeping of records and technical reference material; (ii) An... inspection. (e) Large airplanes (to which part 125 is not applicable), turbojet multiengine airplanes, turbopropeller-powered multiengine airplanes, and turbine-powered rotorcraft. No person may operate a...

  19. 78 FR 27001 - Airworthiness Directives; The Boeing Company Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-05-09

    ..., -400, and - 500 series airplanes. That AD currently requires a one-time mid- frequency eddy current (MFEC) inspection, a low-frequency eddy current (LFEC) inspection, and a detailed inspection for damage... external eddy current inspections for cracking of certain fuselage crown lap joints, and corrective...

  20. 78 FR 76572 - Airworthiness Directives; Airbus Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-12-18

    ... cost Parts cost Cost per product operators Inspection 3 work-hours x $85 $0 $255 per inspection $217... comments on this proposed AD by February 3, 2014. ADDRESSES: You may send comments by any of the following..., Aerospace Engineer, International Branch, ANM-116, Transport Airplane Directorate, FAA, 1601 Lind Avenue...

  1. 77 FR 59732 - Airworthiness Directives; Airbus Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-10-01

    ... A340-500 and -600 series airplanes. This AD requires repetitive inspections for corrosion of the drag... having corrosion protection, which terminates the repetitive inspections required by this AD. This AD was prompted by findings of corrosion traces in the lugs and on the bearing outer surface of the NLG...

  2. Giant airplanes

    NASA Technical Reports Server (NTRS)

    Warner, Edward P

    1922-01-01

    It is hardly possible for the most imaginative aeronautical enthusiast to look forward to a time when the airplane will have reached the dimensions commensurate with those already attained by the airship.

  3. Stimulated dual-band infrared computed tomography: A tool to inspect the aging infrastructure

    SciTech Connect

    Del Grande, N.K.; Durbin, P.F.

    1995-06-27

    The authors have developed stimulated dual-band infrared (IR) computed tomography as a tool to inspect the aging infrastructure. The system has the potential to locate and quantify structural damage within airframes and bridge decks. Typically, dual-band IR detection methods improve the signal-to-noise ratio by a factor of ten, compared to single-band IR detection methods. They conducted a demonstration at Boeing using a uniform pulsed-heat source to stimulate IR images of hidden defects in the 727 fuselage. The dual-band IR camera and image processing system produced temperature, thermal inertia, and cooling-rate maps. In combination, these maps characterized the defect site, size, depth, thickness and type. The authors quantified the percent metal loss from corrosion above a threshold of 5%, with overall uncertainties of 3%. Also, they conducted a feasibility study of dual-band IR thermal imaging for bridge deck inspections. They determined the sites and relative concrete displacement of 2-in. and 4-in. deep delaminations from thin styrofoam implants in asphalt-covered concrete slabs. They demonstrated the value of dual-band IR computed tomography to quantify structural damage within flash-heated airframes and naturally-heated bridge decks.

  4. 76 FR 1979 - Airworthiness Directives; The Boeing Company Model 757 Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-01-12

    ... certification basis of the airplane, and the approval must specifically refer to this AD. Material Incorporated...-16576; AD 2011-02-03] RIN 2120-AA64 Airworthiness Directives; The Boeing Company Model 757 Airplanes... -300 series airplanes. This AD requires an inspection of the two spring arms in the spin...

  5. 75 FR 53843 - Airworthiness Directives; The Boeing Company Model 737-100 and -200 Series Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-09-02

    ... to be approved, the repair must meet the certification basis of the airplane. Material Incorporated... Model 737-100 and - 200 Series Airplanes AGENCY: Federal Aviation Administration (FAA), DOT. ACTION... -200 series airplanes. This AD requires repetitive inspections for cracking and damaged fasteners...

  6. 75 FR 81430 - Airworthiness Directives; The Boeing Company Model 747 Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-12-28

    ... airplanes, an inspection for steel cross-shaped doublers on the larger aluminum doublers; and corrective... inspection for steel cross- shaped doublers on the larger aluminum doublers; and corrective action...

  7. 77 FR 70362 - Airworthiness Directives; The Boeing Company Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-11-26

    ..., along the bend radius of the chord on several airplanes. This AD requires a general visual inspection to... main entry door number 1 upper main sill outer chord, along the bend radius of the chord, which could..., along the bend radius of the chord on several airplanes. We are issuing this AD to detect and...

  8. 77 FR 69747 - Airworthiness Directives; The Boeing Company Model Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-11-21

    ... adds inspections for cracks in the BS 727 frame outboard chords and the radius of the auxiliary chord... outboard chord at BS 727 and in the radius of the auxiliary chord on airplanes that were not affected by... radius of the auxiliary chord, for certain airplanes. That NPRM also proposed to remove the...

  9. 78 FR 15658 - Airworthiness Directives; The Boeing Company Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-03-12

    ... airplanes. This proposed AD was prompted by reports of spanwise cracks and corrosion in the wing center box... other airplanes, repetitive inspections for damage, cracking, and corrosion of the pressure seal; and repair if necessary. We are proposing this AD to detect and correct cracking and corrosion of the...

  10. 78 FR 23110 - Airworthiness Directives; The Boeing Company Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-04-18

    ..., -300ER, and 777F series airplanes. This AD was prompted by a report that during a test of the oxygen system, an operator found that the passenger oxygen masks did not properly flow oxygen, and that a loud... inspection of certain areas of the airplane oxygen system to ensure clamshell couplers are installed...

  11. 77 FR 24353 - Airworthiness Directives; Bombardier, Inc. Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-04-24

    ...-600-2B16 (CL-604 Variant) airplanes. This AD was prompted by multiple reports of short circuit events... requires replacing or relocating of certain circuit breaker panel (CBP) bus bars on certain airplanes, inspecting for any loose or improperly crimped lugs in certain electrical panel locations and replacement...

  12. 77 FR 33083 - Airworthiness Directives; WACO Classic Aircraft Corporation Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-06-05

    ... Aircraft Corporation Airplanes AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Final rule... Aircraft Corporation Models 2T-1A, 2T-1A-1, and 2T-1A-2 airplanes. This AD requires inspection of the front..., contact WACO Classic Aircraft Corporation; 15955 South Airport Rd., Battle Creek, Michigan...

  13. 77 FR 40481 - Airworthiness Directives; The Boeing Company Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-07-10

    ..., 747-200B, 747- 200C, 747-200F, 747-400F, 747SR, and 747SP series airplanes, without a stretched upper deck or stretched upper deck modification. That AD currently requires repetitive inspections for...

  14. 77 FR 70366 - Airworthiness Directives; Airbus Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-11-26

    ..., -243F, -341, -342, and -343 airplanes equipped with Rolls-Royce Trent 700 engines. This AD was prompted by reports of extensive damage to engine air intake cowls as a result of acoustic panel collapse. This AD requires repetitive inspections of the three inner acoustic panels of both engine air...

  15. 78 FR 51058 - Airworthiness Directives; Airbus Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-08-20

    ... series airplanes. AD 2004-13-06 required repetitive detailed inspections to detect cracks in the keel... cracking in the keel beam side panels, and corrective actions if necessary. This AD was prompted by reports of cracks on the side panels of the keel beams. We are issuing this AD to detect and correct...

  16. 78 FR 65187 - Airworthiness Directives; Airbus Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-10-31

    ... and Model A340-200 and -300 series airplanes. This AD was prompted by reports of corrosion found on... the tie bar and the screw-jack. This AD requires repetitive detailed inspections for corrosion of... or new and improved THSA, if necessary. We are issuing this AD to detect and correct corrosion of...

  17. 77 FR 28238 - Airworthiness Directives; Airbus Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-05-14

    ..., and -231 airplanes. This AD was prompted by reports that corrosion was found on the overwing refueling... inspection for corrosion of the component interface and adjacent area, and repairing the gravity fuel adaptor if any corrosion is found. We are issuing this AD to detect and correct corrosion and...

  18. 76 FR 73486 - Airworthiness Directives; Airbus Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-11-29

    ... fuel pumps, the water drain system between certain ribs, a water drain system and the ventilation... history of airplanes subject to those regulations, and existing maintenance practices for fuel tank... System Design Review, Flammability Reduction and Maintenance and Inspection Requirements'' (66 FR...

  19. 78 FR 41280 - Airworthiness Directives; Airbus Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-07-10

    ... airplanes. This AD was prompted by a report of two fatigue cracks on the left-hand and right-hand sides of... requires a high frequency eddy current (HFEC) inspection for any cracking on the left- hand and right-hand... states: One operator reported finding two fatigue cracks on continuity fittings at left-hand (LH)...

  20. 77 FR 60658 - Airworthiness Directives; Airbus Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-10-04

    ... airplanes. This proposed AD was prompted by a report of two fatigue cracks on the left-hand and right-hand... proposed AD would require a high frequency eddy current (HFEC) inspection for any cracking on the left-hand and right-hand sides of the windshield central lower node continuity fittings, and repair if...

  1. 75 FR 81409 - Airworthiness Directives; The Boeing Company Model 737-200, -300, -400, and -500 Series Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-12-28

    ... repair must meet the certification basis of the airplane. Material Incorporated by Reference (n) You must... Model 737-200, -300, -400, and -500 Series Airplanes AGENCY: Federal Aviation Administration (FAA), DOT..., -300, -400, and -500 series airplanes. This AD requires repetitive inspections for cracking of...

  2. 75 FR 43809 - Airworthiness Directives; Piper Aircraft, Inc. PA-28, PA-32, PA-34, and PA-44 Series Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-07-27

    .... PA-28, PA-32, PA- 34, and PA-44 Series Airplanes AGENCY: Federal Aviation Administration (FAA), DOT... Aircraft, Inc. (Piper) PA-28, PA-32, PA-34, and PA-44 series airplanes. This AD requires you to inspect the... apply to certain Piper Aircraft, Inc. (Piper) PA-28, PA-32, PA- 34, and PA-44 series airplanes....

  3. Amphibious Airplane

    NASA Technical Reports Server (NTRS)

    1986-01-01

    The airplane pictured is the new Air Shark I, a four-place amphibian that makes extensive use of composite materials and cruises at close to 200 miles per hour under power from a 200-horsepower engine. Air Shark I is a "homebuilt" airplane, assembled from a kit of parts and components furnished by Freedom Master Corporation, Satellite Beach, Florida. The airplane incorporates considerable NASA technology and its construction benefited from research assistance provided by Kennedy Space Center (KSC) In designing the Shark, company president Arthur M. Lueck was able to draw on NASA's aeronautical technology bank through KSC's computerized "recon" library. As a result of his work at KSC, the wing of the Air Shark I is a new airfoil developed by Langley Research Center for light aircraft. In addition, Lueck opted for NASA-developed "winglets," vertical extensions of the wing that reduce drag by smoothing air turbulence at the wingtips. The NASA technology bank also contributed to the hull design. Lueck is considering application of NASA laminar flow technology-means of smoothing the airflow over wing and fuselage-to later models for further improvement of the Shark's aerodynamic efficiency. A materials engineer, Lueck employed his own expertise in designing and selecting the materials for the composite segments, which include all structural members, exposed surfaces and many control components. The materials are fiber reinforced plastics, or FRP They offer a high strength-to-weight ratio, with a nominal strength rating about one and a half times that of structural steel. They provide other advantages: the materials can be easily molded into finished shapes without expensive tooling or machining, and they are highly corrosion resistant. The first homebuilt to be offered by Freedom Master, Air Shark I completed air and water testing in mid-1985 and the company launched production of kits.

  4. Periodic inspection on crop sprayers: results according to age of sprayers.

    PubMed

    Antuniassi, Ulisses R; Gandolfo, Marco A

    2005-01-01

    The objectives of the IPP Project--Periodic Inspection on Crop Sprayers--are to develop methods for sprayer certification, analyze quality on spray operation, propose an inspection system for crop sprayers in Brazil, improve environmental quality on spray operation, and reduce costs on chemical control for plant protection systems. Periodic inspections on crop sprayers are performed in several countries and are compulsory in most of them, and it is becoming an important tool for improvement and optimization of use of chemicals. The IPP Project in Brazil is funded by FAPESP--Fundação de Amparo à Pesquisa do Estado de São Paulo. The results so far showed that all the sprayers presented failures. However, most of them could be approved with minor services. As an example, 56.6% of the sprayers with more than 2 years of use presented leaks, 47% of them had damaged hoses and 80.5% presented bad tips (nozzles). These results indicate the need for better procedures of use and maintenance of sprayers, justifying the periodic inspection system.

  5. 78 FR 59293 - Airworthiness Directives; The Boeing Company Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-09-26

    ... satellite communication (SATCOM) antenna adapter. This proposed AD would require repetitive inspections of... SATCOM antenna adapter. During a maintenance planning data inspection, one operator reported a 16-inch crack under the 3-bay SATCOM antenna adapter plate in the crown skin of the fuselage on an airplane...

  6. 78 FR 76047 - Airworthiness Directives; The Boeing Company Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-12-16

    ..., and 747SR series airplanes. This AD was prompted by reports of cracks of both lower chords and web on certain outboard struts. This AD requires repetitive inspections for cracking of the lower spar chords and web, web lower spar chord modification, which includes inspections for cracking of the lower...

  7. 77 FR 57539 - Airworthiness Directives; The Boeing Company Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-09-18

    ... inspections for cracking of the fuselage skin along chem-mill steps at certain crown skin and shear wrinkle... adjacent to non-chem-mill areas at antenna and door bearstrap installations, and shear wrinkle areas at...-1312, Revision 1, dated March 14, 2012. (h) Inspections of Shear Wrinkle Areas For Group 1 airplanes...

  8. 77 FR 26156 - Airworthiness Directives; Cessna Aircraft Company Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-05-03

    ... 560XL airplanes. This AD requires an inspection of the torque lug and surrounding components (wheel base... components (wheel base, side rim, lock ring) for damage (such as corrosion, cracks, dents, bent areas... Inspection, and measurement of Up to 11 work- Up to $6,462...... Up to $7,397...... Up to $3,498,781....

  9. 77 FR 37332 - Airworthiness Directives; The Boeing Company Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-06-21

    ... repetitive ultrasonic inspections for cracking of the bulkhead, and repair if necessary; and an option for... extend the repetitive intervals by also doing repetitive ultrasonic inspections for cracking of the... airplanes, add an option to extend the repetitive intervals by also doing repetitive ultrasonic...

  10. 78 FR 40050 - Airworthiness Directives; The Boeing Company Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-07-03

    ... reports of skin wear damage on airplanes on which Boeing Material Specifications (BMS) 10-86 Teflon-filled... ] inspection interval specified in AD 2009-14-02. The wear occurred through both the Teflon filled coating and... per 10-86 Teflon-filled coating per hour = $680 cycle. inspection cycles. [retained actions...

  11. 77 FR 6685 - Airworthiness Directives; The Boeing Company Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-02-09

    ... requires an inspection to detect cracks and fractures of the outboard hinge fitting assemblies on the... fractures found before the currently-required inspection cycle compliance times on certain airplanes. This... detect cracks and fractures of the outboard hinge fitting assemblies on the trailing edge of the...

  12. 14 CFR 121.1109 - Supplemental inspections.

    Code of Federal Regulations, 2013 CFR

    2013-01-01

    ... damage-tolerance-based inspections and procedures for airplane structure susceptible to fatigue cracking... termed “fatigue critical structure.” (2) Adverse effects of repairs, alterations, and modifications. The..., and modifications may have on fatigue critical structure and on inspections required by paragraph...

  13. 14 CFR 121.1109 - Supplemental inspections.

    Code of Federal Regulations, 2012 CFR

    2012-01-01

    ... damage-tolerance-based inspections and procedures for airplane structure susceptible to fatigue cracking... termed “fatigue critical structure.” (2) Adverse effects of repairs, alterations, and modifications. The..., and modifications may have on fatigue critical structure and on inspections required by paragraph...

  14. 14 CFR 121.1109 - Supplemental inspections.

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ... damage-tolerance-based inspections and procedures for airplane structure susceptible to fatigue cracking... termed “fatigue critical structure.” (2) Adverse effects of repairs, alterations, and modifications. The..., and modifications may have on fatigue critical structure and on inspections required by paragraph...

  15. 14 CFR 121.1109 - Supplemental inspections.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... damage-tolerance-based inspections and procedures for airplane structure susceptible to fatigue cracking... termed “fatigue critical structure.” (2) Adverse effects of repairs, alterations, and modifications. The..., and modifications may have on fatigue critical structure and on inspections required by paragraph...

  16. 14 CFR 121.1109 - Supplemental inspections.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... damage-tolerance-based inspections and procedures for airplane structure susceptible to fatigue cracking... termed “fatigue critical structure.” (2) Adverse effects of repairs, alterations, and modifications. The..., and modifications may have on fatigue critical structure and on inspections required by paragraph...

  17. 75 FR 60665 - Airworthiness Directives; McDonnell Douglas Corporation Model MD-90-30 Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-10-01

    ... MD-90-30 airplanes. This proposed AD would require repetitive high frequency eddy current inspections... 17, 2010, describes procedures for doing repetitive high frequency eddy current (HFEC) inspections... this AD, do a high frequency eddy current (HFEC) inspection for cracking on the hinge bearing lugs...

  18. Development of Ultrasonic and Fabry-Perot Interferometer for Non-Destruction Inspection of Aging Aircraft

    NASA Technical Reports Server (NTRS)

    Smith, Alphonso C.

    1998-01-01

    Fabry-Perot Interferometer (FPI) sensor detection system was continued and refined modifications were made in the data acquisition and evaluation process during the last year. The ultrasonic and FPI detection system was improved from one to multiple sensor detectors. Physical models were developed to understand the physical phenomenon of this work. Multilayered flawed samples were fabricated for inspection by a prototype ultrasonic and FPI detection. Experimental data was verified with simulated results. Undergraduate students that were associated with this research gained valuable knowledge from this experience. This was a learning process helping students to understand the importance of research and its application to solve important technological problems. As a result of our students exposure to this research two and planning to continue this type of research work in graduate school. A prototype instrument package was laboratory tested an actual airframe structure for documentation purposes.

  19. 75 FR 3660 - Airworthiness Directives; The Boeing Company Model 757 Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-01-22

    ... airplanes. This proposed AD would require repetitive inspections for corrosion and cracking in the front... Model 757 Airplanes AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Notice of proposed... side link support fitting at WS 292. We are proposing this AD to detect and correct such corrosion...

  20. 76 FR 721 - Airworthiness Directives; Gulfstream Aerospace Corporation Model G-1159 Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-01-06

    ... Aerospace Corporation Model G-1159 Airplanes AGENCY: Federal Aviation Administration, DOT. ACTION: Proposed... Aerospace Corporation Model G-1159 airplanes. The existing AD requires an inspection to detect cracks or... is withdrawn. FOR FURTHER INFORMATION CONTACT: Carey O'Kelley, Aerospace Engineer, Airframe...

  1. 76 FR 37684 - Airworthiness Directives; Diamond Aircraft Industries GmbH Model (Diamond) DA 40 Airplanes...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-06-28

    ... Federal Aviation Administration 14 CFR Part 39 RIN 2120-AA64 Airworthiness Directives; Diamond Aircraft Industries GmbH Model (Diamond) DA 40 Airplanes Equipped With Certain Cabin Air Conditioning Systems AGENCY... inspections of the Diamond Model DA 40 airplanes equipped with a VCS installed per Premier Aircraft...

  2. 75 FR 21528 - Airworthiness Directives; McDonnell Douglas Corporation Model MD-90-30 Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-04-26

    ... certain Model MD-90-30 airplanes. This proposed AD would require inspecting for corrosion of the retract... system. We are proposing this AD to prevent corrosion and damage that could compromise the integrity of... Corporation MD-80 series airplanes. This condition, if not corrected, could result in corrosion and...

  3. 76 FR 81894 - Airworthiness Directives; Empresa Brasileira de Aeronautica S.A. (EMBRAER) Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-12-29

    ... fatigue testing, cracks were found in certain structural components of the airplane. Analysis of these... or revised structural inspection requirements. We are proposing this AD to detect and correct fatigue... condition for the specified products. The MCAI states: During the airplane full scale fatigue test,...

  4. Developments in real-time 2D ultrasound inspection for aging aircraft

    NASA Astrophysics Data System (ADS)

    Lasser, Marvin E.; Lasser, Bob; Kula, John; Rohrer, Gene; Harrison, George H.

    1999-01-01

    Nondestructive testing of aircraft components through ultrasonic testing is well established as one of the industry's benchmark techniques. Its capability to penetrate both thin and thick material provides arguably the best information to inspectors on subsurface faults. However, there are tow basic drawbacks to it use: its difficulty to employ and its slow speed. Real-time C-scan solves both of these issues while maintain high quality subsurface information. Cracking, corrosion, voids, delaminations and impact damage can be observed in 1/30 second. The basis for this technology is a novel 2D imaging array that creates immediate, high-resolution images of subsurface faults. The latest developments of the technique include commercial introduction of a through-transmission scanning product which can inspect large structures, as well as significant progress in the development of a hand held device which produces instantaneous high quality imagery of defects in reflection over an area as the user simply holds a probe up to the target. This work is funded in part by the Navy SBIR 'Fasttrack' program.

  5. 78 FR 33193 - Airworthiness Directives; The Boeing Company Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-06-04

    ... hidden parts of the airplane. The FAA made this safety determination based on tests of aged BMS 8-39... (such as the installation of felt on Model 767 airplanes per Figure 18 of Boeing Special Attention... retardant properties, which deteriorate over time, can provide a fuel source for an ignition event in...

  6. Powertrain Component Inspection from Mid-Level Blends Vehicle Aging Study

    SciTech Connect

    Shoffner, Brent; Johnson, Ryan; Heimrich, Martin J.; Lochte, Michael

    2010-11-01

    The Energy Independence and Security Act of 2007 calls on the nation to significantly increase its use of renewable fuels to meet its transportation energy needs. The law expands the renewable fuel standard to require use of 36 billion gallons of renewable fuel by 2022. Given that ethanol is the most widely used renewable fuel in the U.S. market, ethanol will likely make up a significant portion of the 36-billion-gallon requirement. The vast majority of ethanol used in the United States is blended with gasoline to create E10-gasoline with up to 10% ethanol. The remaining ethanol is sold in the form of E85 - a gasoline blend with as much as 85% ethanol that can only be used in flexible-fuel vehicles (FFVs). Consumption of E85 is at present limited by both the size of the FFV fleet and the number of E85 fueling stations. Gasoline consumption in the United States is currently about 140 billion gallons per year; thus the maximum use of ethanol as E10 is only about 14 billion gallons. While the U.S. Department of Energy (DOE) remains committed to expanding the E85 infrastructure, that market represented less than 1% of the ethanol consumed in 2010 and will not be able to absorb projected volumes of ethanol in the near term. Because of these factors, DOE and others have been assessing the viability of using mid-level ethanol blends (E15 or E20) as a way to accommodate growing volumes of ethanol. The DOE Mid-Level Ethanol Blends Test Program has been under way since 2007, supported jointly by the Office of the Biomass Program and the Vehicle Technologies Program. One of the larger projects, the Catalyst Durability Study, or Vehicle Aging Study, will be completed early in calendar year 2011. The following report describes a subproject of the Vehicle Aging Study in which powertrain components from 18 of the vehicles were examined at Southwest Research Institute under contract to Oak Ridge National Laboratory (ORNL).

  7. 77 FR 7007 - Airworthiness Directives; Airbus Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-02-10

    ... Federal Aviation Administration 14 CFR Part 39 RIN 2120-AA64 Airworthiness Directives; Airbus Airplanes... airplanes; Model A330-300 series airplanes, Model A340-200 series airplanes; Model A340-300 series airplanes; Model A340-541 airplanes; and Model A340-642 airplanes. This proposed AD was prompted by reports...

  8. 78 FR 65190 - Airworthiness Directives; Bombardier, Inc. Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-10-31

    ... drain bottles. We are issuing this AD to prevent pitot static tubing from becoming blocked by water... static tubing may become partially or completely blocked by the water which didn't enter the drain bottle... drainage of the pitot- static tubing [and, for certain other airplanes, an inspection for, and...

  9. 78 FR 49903 - Airworthiness Directives; The Boeing Company Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-08-16

    ... Federal Regulations is sold by the Superintendent of Documents. #0;Prices of new books are listed in the... cracking on the door on the other side of the airplane. Southwest added that, for a door that has no... surface high frequency eddy current (HFEC) inspection for cracking of the left- and right-side inboard...

  10. 77 FR 57541 - Airworthiness Directives; The Boeing Company Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-09-18

    ...-600 series airplanes. This proposed AD was prompted by reports of early fatigue cracks at chem- mill areas on the crown skin panels. This proposed AD would require repetitive inspections for cracking of... this AD to detect and correct fatigue cracking of the skin panel at the specified chem- ] mill...

  11. 77 FR 27142 - Airworthiness Directives; The Boeing Company Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-05-09

    ... airplanes. This proposed AD was prompted by multiple reports of cracks of overwing frames. This proposed AD would require repetitive inspections for cracking of the overwing frames, and related investigative and corrective actions if necessary. We are proposing this AD to detect and correct such cracking that...

  12. 78 FR 24338 - Airworthiness Directives; The Boeing Company Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-04-25

    ... airplanes. This AD was prompted by reports of early fatigue cracks at chem-mill areas on the crown skin panels. This AD requires repetitive inspections for cracking of the fuselage skin along chem-mill steps... detect and correct fatigue cracking of the skin panel at the specified chem-mill step locations,...

  13. 77 FR 24355 - Airworthiness Directives; The Boeing Company Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-04-24

    ..., and 777F series airplanes. This AD was prompted by reports of cracks found in the Web pockets of the... frequency eddy current inspections for cracks of the WCS spanwise beams, and repair if necessary. We are issuing this AD to detect and correct cracking in the WCS spanwise beams, which could result in...

  14. 77 FR 2664 - Airworthiness Directives; The Boeing Company Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-01-19

    ... airplanes. This proposed AD was prompted by reports of cracks found on the center section ribs of the horizontal stabilizers. This proposed AD would require repetitive inspections for cracking of the aft face of... crack measurement, repairs, and installation of a new center section rib if necessary. We are...

  15. 78 FR 51050 - Airworthiness Directives; Bombardier, Inc. Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-08-20

    ... DHC-8-102, -103, and -106 airplanes. This AD was prompted by a report of cracking in a lower longeron in a nacelle. This AD requires repetitive inspections for cracking of the lower longerons in the... optional terminating action. We are issuing this AD to detect and correct such cracking, which could...

  16. 78 FR 25369 - Airworthiness Directives; The Boeing Company Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-05-01

    ... airplanes. This AD was prompted by reports of early fatigue cracks at chem-mill areas on the crown skin panels. This AD requires repetitive inspections for cracking of the fuselage skin at certain locations at chem-mill areas, and repair if necessary. We are issuing this AD to detect and correct fatigue...

  17. 77 FR 28240 - Airworthiness Directives; The Boeing Company Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-05-14

    ... airplanes. This AD was ] prompted by reports of multiple site damage cracks in the radial web lap and tear... repetitive inspections for cracking of the aft pressure bulkhead at STA 1582, repair or replacement of any cracked bulkhead, and eventual replacement of the aft pressure bulkhead at STA 1582 with a new...

  18. 78 FR 60807 - Airworthiness Directives; The Boeing Company Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-10-02

    ... cracking found in the skin at the lower aft corner of the forward entry doorway on airplanes that do not have an airstair door cutout. This proposed AD would require repetitive inspections for cracking in the... repair if necessary. We are proposing this AD to detect and correct cracking in the lower corners of...

  19. 77 FR 57529 - Airworthiness Directives; The Boeing Company Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-09-18

    ... for cracking of the fuselage skin along chem- mill steps at certain crown skin and shear wrinkle areas... to non-chem-mill areas at antenna and door bearstrap installations, and shear wrinkle areas at.... (h) Inspections of Shear Wrinkle Areas For Groups 2, 5, and 6 airplanes as identified in...

  20. 78 FR 66859 - Airworthiness Directives; the Boeing Company Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-11-07

    ... airplanes. This proposed AD was prompted by reports of bearing damage at certain trailing edge (TE) flap support rib assemblies. This proposed AD would require inspecting certain TE flap support rib assemblies... TE flap support bearings, which can result in damage to the TE rotary actuators and consequent...

  1. 78 FR 27020 - Airworthiness Directives; The Boeing Company Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-05-09

    ...-186-AD; Amendment 39-17429; AD 2012-18-13 R1] RIN 2120-AA64 Airworthiness Directives; The Boeing... revising an existing airworthiness directive (AD) for all The Boeing Company Model 737-100, -200, -200C, -300, -400, and -500 series ] airplanes. That AD currently requires repetitive inspections to...

  2. 77 FR 6003 - Airworthiness Directives; Cessna Aircraft Company Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-02-07

    ...-033-AD; Amendment 39-16925; AD 2012-02-02] RIN 2120-AA64 Airworthiness Directives; Cessna Aircraft... superseding an existing airworthiness directive (AD) for certain Cessna Aircraft Company (Cessna) Models 172R and 172S airplanes. That AD currently requires you to inspect the fuel return line assembly...

  3. 77 FR 63266 - Airworthiness Directives; The Boeing Company Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-10-16

    ..., reinforcement straps were not bonded to the center overhead stowage bins in the passenger compartment. For certain airplanes, this proposed AD would require performing an inspection of reinforcement straps to ensure they are correctly bonded to the center overhead stowage bins, and bonding the...

  4. 77 FR 40826 - Airworthiness Directives; Bombardier, Inc. Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-07-11

    ... 1000) airplanes. This proposed AD was prompted by a report that certain wing-to-fuselage attachment... AD would require repetitive inspections to determine that cotter pins are installed at affected wing... of wing-to-fuselage attachment joints, which could result in the loss of the wing. DATES: We...

  5. 77 FR 67267 - Airworthiness Directives; Bombardier, Inc. Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-11-09

    ... Series 1000) airplanes. This AD was prompted by a report that certain wing-to-fuselage attachment nuts do... repetitive inspections to determine that cotter pins are installed at affected wing-to-fuselage attachment joints and replacement if necessary. We are issuing this AD to prevent loss of...

  6. 76 FR 76066 - Airworthiness Directives; The Boeing Company Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-12-06

    ... certain The Boeing Company Model 777 airplanes. This proposed AD was prompted by reports of corrosion... pins with new or reworked pivot pins having improved corrosion resistance, doing repetitive inspections... received reports of corrosion damage on the outer diameter chrome surface of the horizontal...

  7. 78 FR 53078 - Airworthiness Directives; The Boeing Company Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-08-28

    ... methods: Federal eRulemaking Portal: Go to http://www.regulations.gov . Follow the instructions for... with a method that we approve; or Using data that meet the certification basis of the airplane, and...: Estimated Costs Cost on U.S. Action Labor cost Parts cost Cost per product operators Inspections 27...

  8. 77 FR 18719 - Airworthiness Directives; The Boeing Company Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-03-28

    ... requires, for certain airplanes, repositioning or replacing two bonding straps, doing a bonding- resistance... electrical resistance of the bonding straps, verifying that brackets have an acceptable fillet seal, and...-resistance check and an inspection to determine correct installation of certain bonding straps,...

  9. 77 FR 45981 - Airworthiness Directives; Bombardier, Inc. Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-08-02

    ... experienced on CL-600-2B19 (CRJ) aeroplanes, resulting in loss of the associated hydraulic system and high... failure of the screw cap or end cap of hydraulic accumulators on other airplane models, resulting in high-energy impact damage to adjacent systems and structure. This proposed AD would require inspecting for...

  10. 77 FR 65617 - Airworthiness Directives; Bombardier, Inc. Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-10-30

    ... the associated hydraulic system and high-energy impact damage to adjacent systems and structure. To... cap of hydraulic accumulators on other airplane models, resulting in high-energy impact damage to adjacent systems and structure. This AD requires inspecting for a part number and replacing the...

  11. 77 FR 55159 - Airworthiness Directives; The Boeing Company Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-09-07

    ... airplanes. That NPRM proposed to require an inspection for affected serial numbers of the crew oxygen mask stowage box units; and replacement of the crew oxygen mask stowage box unit with a new crew oxygen mask stowage unit, if necessary. That NPRM was prompted by reports indicating that certain crew oxygen...

  12. 77 FR 58791 - Airworthiness Directives; The Boeing Company Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-09-24

    ... require revising the maintenance program to update inspection requirements to ] detect fatigue cracking of principal structural elements (PSEs). We are proposing this AD to detect and correct fatigue cracking of... additional analyses of fatigue cracking of PSEs on certain Model 737 airplanes, which included: Crack...

  13. The Airplane Experiment.

    ERIC Educational Resources Information Center

    Larson, Lee; Grant, Roderick

    1991-01-01

    Presents an experiment to investigate centripetal force and acceleration that utilizes an airplane suspended on a string from a spring balance. Investigates the possibility that lift on the wings of the airplane accounts for the differences between calculated tension and measured tension on the string. (MDH)

  14. 75 FR 22514 - Airworthiness Directives; The Boeing Company Model 747-200B Series Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-04-29

    ... Boeing to the stretched upper deck (SUD) configuration require inspection for cracking of the stringer 6... stretched upper deck (SUD) configuration require inspecting the stringer 6 lap joint upper fastener row for... results from reviews done by Boeing, which show that airplanes modified to the stretched upper deck...

  15. 76 FR 1983 - Airworthiness Directives; The Boeing Company Model MD-11 and MD-11F Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-01-12

    ... general visual inspection for correct installation of the self-adhering high-temperature electrical.... The SNPRM proposed to revise the original NPRM by adding, for certain airplanes, a general visual... 60 months after the effective date of this AD, perform a general visual inspection to detect...

  16. 78 FR 52841 - Airworthiness Directives; Lockheed Martin Corporation/Lockheed Martin Aeronautics Company Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-08-27

    ... repetitive inspections to detect corrosion or fatigue cracking of certain structural elements of the airplane... prevent corrosion or fatigue cracking of certain structural elements, which could result in reduced... require repetitive inspections to detect corrosion or fatigue cracking of certain structural elements...

  17. 77 FR 63275 - Airworthiness Directives; Lockheed Martin Corporation/Lockheed Martin Aeronautics Company Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-10-16

    ...-1011 series airplanes. The existing AD currently requires repetitive inspections to detect corrosion or... corrosion or fatigue cracking of certain structural elements, which could result in reduced structural... requires repetitive inspections to detect corrosion or fatigue cracking of certain structural elements...

  18. 77 FR 16135 - Airworthiness Directives; Mooney Aviation Company, Inc. (Mooney) Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-03-20

    ... currently requires inspecting the tail pitch trim assembly for correct positioning and proper attachment and... failure of the tail pitch trim assembly, which could result in loss of control. We are issuing this AD to... airplanes. That AD requires inspecting the tail pitch trim assembly for correct positioning and...

  19. 75 FR 6154 - Airworthiness Directives; The Boeing Company Model 767 Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-02-08

    ... repetitive detailed and high frequency eddy current (HFEC) inspections of the station (STA) 1809.5 bulkhead...), for all Model 767 airplanes. That AD requires repetitive detailed and high frequency eddy current... detailed and high frequency eddy current (HFEC) inspections for cracking as specified in Parts 1, 2, 3,...

  20. MLS: Airplane system modeling

    NASA Technical Reports Server (NTRS)

    Thompson, A. D.; Stapleton, B. P.; Walen, D. B.; Rieder, P. F.; Moss, D. G.

    1981-01-01

    Analysis, modeling, and simulations were conducted as part of a multiyear investigation of the more important airplane-system-related items of the microwave landing system (MLS). Particular emphasis was placed upon the airplane RF system, including the antenna radiation distribution, the cabling options from the antenna to the receiver, and the overall impact of the airborne system gains and losses upon the direct-path signal structure. In addition, effort was expended toward determining the impact of the MLS upon the airplane flight management system and developing the initial stages of a fast-time MLS automatic control system simulation model. Results ot these studies are presented.

  1. Gordon Bennett Airplane Cup

    NASA Technical Reports Server (NTRS)

    Margoulis, W

    1921-01-01

    The characteristics of the airplanes built for the Gordon Bennet Airplane Cup race that took place on September 28, 1920 are described. The airplanes are discussed from a aerodynamical point of view, with a number of new details concerning the French machines. Also discussed is the regulation of future races. The author argues that there should be no limitations on the power of the aircraft engines. He reasons that in the present state of things, liberty with regard to engine power does not lead to a search for the most powerful engine, but for one which is reliable and light, thus leading to progress.

  2. The Bristol "Badminton" Airplane

    NASA Technical Reports Server (NTRS)

    1926-01-01

    The Bristol Badminton, Type 99 airplane has a radial aircooled engine (a Bristol Jupiter 9 cylinder 450 HP.) and three fuel tanks. It is a single seat biplane weighing 1,840 lbs. empty and 2,460 lbs. loaded.

  3. Stall-proof Airplanes

    NASA Technical Reports Server (NTRS)

    Lachmann, G

    1927-01-01

    My lecture has to do with the following questions. Is the danger of stalling necessarily inherent in the airplane in its present form and structure, or can it be diminished or eliminated by suitable means? Do we possess such means or devices and how must they operate? In this connection I will devote special attention to the exhibition of stall-proof airplanes by Fokker under the auspices of the English Air Ministry, which took place in Croyden last April.

  4. Nondestructive inspection of bonded composite doublers for aircraft

    SciTech Connect

    Roach, D.; Moore, D.; Walkington, P.

    1996-12-31

    One major thrust in FAA`s National Aging Aircraft Research Program is to foster new technologies in civil aircraft maintenance. Recent DOD and other government developments in using bonded composite doublers on metal structures support the need for validation of such doubler applications on US certificated airplanes. In this study, a specific composite application was chosen on an L-1011 aircraft. Primary inspection requirements for these doublers include identifying disbonds between composite laminate and aluminum parent material, and delaminations in the composite laminate. Surveillance of cracks or corrosion in the parent aluminum material beneath the double is also a concern. No single NDI method can inspect for every flaw type, therefore we need to know NDI capabilities and limitations. This paper reports on a series of NDI tests conducted on laboratory test structures and on a fuselage section from a retired L-1011. Application of ultrasonics, x-ray, and eddy current to composite doublers and results from test specimens loaded to provide a changing flaw profile, are presented in this paper. Development of appropriate inspection calibration standards are also discussed.

  5. 75 FR 31282 - Airworthiness Directives; Airbus Model A319-100, A320-200, A321-100, and A321-200 Series Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-06-03

    ...-100, A320-200, A321- 100, and A321-200 Series Airplanes AGENCY: Federal Aviation Administration (FAA... to certain Airbus Model A319-100, A320-200, A321-100, and A321-200 series airplanes. This AD requires repetitive inspections for corrosion in the inside and outside lower walls of each type A, D, E, and...

  6. 14 CFR 36.7 - Acoustical change: Transport category large airplanes and jet airplanes.

    Code of Federal Regulations, 2013 CFR

    2013-01-01

    ... airplanes and jet airplanes. 36.7 Section 36.7 Aeronautics and Space FEDERAL AVIATION ADMINISTRATION... § 36.7 Acoustical change: Transport category large airplanes and jet airplanes. (a) Applicability. This section applies to all transport category large airplanes and jet airplanes for which an acoustical...

  7. 14 CFR 36.7 - Acoustical change: Transport category large airplanes and jet airplanes.

    Code of Federal Regulations, 2012 CFR

    2012-01-01

    ... airplanes and jet airplanes. 36.7 Section 36.7 Aeronautics and Space FEDERAL AVIATION ADMINISTRATION... § 36.7 Acoustical change: Transport category large airplanes and jet airplanes. (a) Applicability. This section applies to all transport category large airplanes and jet airplanes for which an acoustical...

  8. 14 CFR 36.7 - Acoustical change: Transport category large airplanes and jet airplanes.

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ... airplanes and jet airplanes. 36.7 Section 36.7 Aeronautics and Space FEDERAL AVIATION ADMINISTRATION... § 36.7 Acoustical change: Transport category large airplanes and jet airplanes. (a) Applicability. This section applies to all transport category large airplanes and jet airplanes for which an acoustical...

  9. 77 FR 62182 - Airworthiness Directives; Airbus Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-10-12

    ... Directives; Airbus Airplanes AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Notice of proposed... B4-600, B4-600R, and F4-600R series airplanes, and Model A300 C4-605R Variant F airplanes (collectively called Model A300- 600 series airplanes); and Airbus Model A310 series airplanes. This proposed...

  10. 76 FR 78524 - Airworthiness Directives; Airbus Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-12-19

    ... Airplanes AGENCY: Federal Aviation Administration (FAA), Department of Transportation (DOT). ACTION: Final... series airplanes, Model A340-200 and -300 series airplanes, and Model A340-500 and -600 series airplanes..., ANM-116, Transport Airplane Directorate, FAA, 1601 Lind Avenue SW., Renton, Washington...

  11. 77 FR 42952 - Airworthiness Directives; Airbus Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-07-23

    ...-139-AD; Amendment 39-17127; AD 2012-14-13] RIN 2120-AA64 Airworthiness Directives; Airbus Airplanes... airplanes; Model A319-111, -112, -115, - 132, and -133 airplanes; Model A320-214, -232, and -233 airplanes; and Model A321-211, -212, -213, and -231 airplanes. This AD was prompted by reports of some...

  12. 78 FR 15874 - Airworthiness Directives; Airbus Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-03-13

    ...-112-AD; Amendment 39-17372; AD 2013-04-14] RIN 2120-AA64 Airworthiness Directives; Airbus Airplanes... F4-600R series airplanes, and Model A300 C4-605R Variant F airplanes (collectively called Model A300- 600 series airplanes); and Model A310 series airplanes. This AD was prompted by a report of...

  13. 78 FR 9581 - Airworthiness Directives; Airbus Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-02-11

    ...-052-AD; Amendment 39-17346; AD 2013-03-11] RIN 2120-AA64 Airworthiness Directives; Airbus Airplanes..., and F4-600R series airplanes, and Model A300 C4-605R Variant F airplanes (collectively called A300-600 series airplanes); and Model A310 series airplanes. This AD was prompted by reports of cracking...

  14. 77 FR 59149 - Airworthiness Directives; Airbus Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-09-26

    ... Federal Aviation Administration 14 CFR Part 39 RIN 2120-AA64 Airworthiness Directives; Airbus Airplanes..., and F4-600R series airplanes, and Model A300 C4-605R Variant F airplanes (collectively called A300-600 series airplanes); and Model A310 series airplanes. This proposed AD was prompted by reports of...

  15. 77 FR 26663 - Airworthiness Directives; The Boeing Company Model 767-200, -300, -300F, and -400ER Series Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-05-07

    ... inspections to detect cracking or corrosion of the fail-safe straps between the side fitting of the rear spar... applicability; and adds an inspection for cracking in the fail-safe strap, and repair or replacement if necessary. This AD was prompted by additional reports of cracks in 51 fail-safe straps on 41 airplanes;...

  16. The evolution of airplanes

    NASA Astrophysics Data System (ADS)

    Bejan, A.; Charles, J. D.; Lorente, S.

    2014-07-01

    The prevailing view is that we cannot witness biological evolution because it occurred on a time scale immensely greater than our lifetime. Here, we show that we can witness evolution in our lifetime by watching the evolution of the flying human-and-machine species: the airplane. We document this evolution, and we also predict it based on a physics principle: the constructal law. We show that the airplanes must obey theoretical allometric rules that unite them with the birds and other animals. For example, the larger airplanes are faster, more efficient as vehicles, and have greater range. The engine mass is proportional to the body size: this scaling is analogous to animal design, where the mass of the motive organs (muscle, heart, lung) is proportional to the body size. Large or small, airplanes exhibit a proportionality between wing span and fuselage length, and between fuel load and body size. The animal-design counterparts of these features are evident. The view that emerges is that the evolution phenomenon is broader than biological evolution. The evolution of technology, river basins, and animal design is one phenomenon, and it belongs in physics.

  17. Longitudinal balancing of airplanes

    NASA Technical Reports Server (NTRS)

    Eteve, Albert

    1923-01-01

    The object of the present communication is to determine the best method for locating the center of lift of an airplane and to provide a method for making corrections. The method employed is very simple, being based on the positions given the elevator during flights at different speeds.

  18. Nondestructive inspection of bonded composite doublers for aircraft

    NASA Astrophysics Data System (ADS)

    Roach, Dennis P.; Moore, David; Walkington, Phillip D.

    1996-11-01

    One of the major thrusts established under the FAA's National Aging Aircraft Research Program is to foster new technologies associated with civil aircraft maintenance. Recent DOD and other government developments in the use of bonded composite doublers on metal structures has supported the need for research and validation of such doubler applications on US certificated airplanes. Composite doubler technology is rapidly maturing and shows promise of cost savings on aging aircraft. While there have been numerous studies and military aircraft installations of composite doublers, the technology has not been certified for use on commercial aircraft. Before the use of composite doublers can be accepted by the civil aviation industry, it is imperative that methods be developed which can quickly and reliably assess the integrity of the doubler. In this study, a specific composite application was chosen on an L-1011 aircraft in order to focus the tasks on application and operation issues. Primary among inspection requirements for these doublers is the identification of disbonds, between the composite laminate and aluminum parent material, and delaminations in the composite laminate. Surveillance of cracks or corrosion in the inspection (NDI) method can inspect for every flaw type, therefore it is important to be aware of available NDI techniques and to properly address their capabilities and limitations. This paper reports on a series of NDI tests which have been conducted on laboratory test structures and on a fuselage section cut from a retired L-1011 aircraft. Specific challenges, unique to bonded composite doubler applications, will be highlighted. In order to quickly integrate this technology into existing aircraft maintenance depots, the use of conventional NDI, ultrasonics, x-ray, and eddy current, is stressed. The application of these NDI technique to composite doublers and the results from test specimens, which were loaded to provide a changing flaw profile, are

  19. 76 FR 69168 - Airworthiness Directives; Airbus Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-11-08

    ... Federal Aviation Administration 14 CFR Part 39 RIN 2120-AA64 Airworthiness Directives; Airbus Airplanes..., and B4-203 airplanes; Model A300 B4-600, B4-600R, and F4-600R series airplanes, and Model C4-605R Variant F airplanes (collectively called A300-600 series airplanes); and Model A310 series airplanes....

  20. Exploring Venus by Solar Airplane

    NASA Technical Reports Server (NTRS)

    Landis, Geoffrey A.

    2001-01-01

    A solar-powered airplane is proposed to explore the atmospheric environment of Venus. Venus has several advantages for a solar airplane. At the top of the cloud level, the solar intensity is comparable to or greater than terrestrial solar intensities. The Earthlike atmospheric pressure means that the power required for flight is lower for Venus than that of Mars, and the slow rotation of Venus allows an airplane to be designed for continuous sunlight, with no energy storage needed for night-time flight. These factors mean that Venus is perhaps the easiest planet in the solar system for flight of a long-duration solar airplane.

  1. Automated airplane surface generation

    SciTech Connect

    Smith, R.E.; Cordero, Y.; Jones, W.

    1996-12-31

    An efficient methodology and software axe presented for defining a class of airplane configurations. A small set of engineering design parameters and grid control parameters govern the process. The general airplane configuration has wing, fuselage, vertical tall, horizontal tail, and canard components. Wing, canard, and tail surface grids axe manifested by solving a fourth-order partial differential equation subject to Dirichlet and Neumann boundary conditions. The design variables are incorporated into the boundary conditions, and the solution is expressed as a Fourier series. The fuselage is described by an algebraic function with four design parameters. The computed surface grids are suitable for a wide range of Computational Fluid Dynamics simulation and configuration optimizations. Both batch and interactive software are discussed for applying the methodology.

  2. Airplane Airworthiness; Transport Categories

    DTIC Science & Technology

    1962-09-01

    4b.16 (b). The operatLg conditions expected in service and following procedure which permits considerable obtainable within the time and geograp -ic...116 (c). It is also assumed that the cowl flaps on the inoperative engine will be closed when the airplane enters the third takeoff climb segment with...as for the third takeoff LAnding gear-retracted. flight path climb segment except that maximum Operating engine(s)-takeoff r. p. m. continuous power is

  3. Airplane dopes and doping

    NASA Technical Reports Server (NTRS)

    Smith, W H

    1919-01-01

    Cellulose acetate and cellulose nitrate are the important constituents of airplane dopes in use at the present time, but planes were treated with other materials in the experimental stages of flying. The above compounds belong to the class of colloids and are of value because they produce a shrinking action on the fabric when drying out of solution, rendering it drum tight. Other colloids possessing the same property have been proposed and tried. In the first stages of the development of dope, however, shrinkage was not considered. The fabric was treated merely to render it waterproof. The first airplanes constructed were covered with cotton fabric stretched as tightly as possible over the winds, fuselage, etc., and flying was possible only in fine weather. The necessity of an airplane which would fly under all weather conditions at once became apparent. Then followed experiments with rubberized fabrics, fabrics treated with glue rendered insoluble by formaldehyde or bichromate, fabrics treated with drying and nondrying oils, shellac, casein, etc. It was found that fabrics treated as above lost their tension in damp weather, and the oil from the motor penetrated the proofing material and weakened the fabric. For the most part the film of material lacked durability. Cellulose nitrate lacquers, however were found to be more satisfactory under varying weather conditions, added less weight to the planes, and were easily applied. On the other hand, they were highly inflammable, and oil from the motor penetrated the film of cellulose nitrate, causing the tension of the fabric to be relaxed.

  4. 14 CFR 36.7 - Acoustical change: Transport category large airplanes and jet airplanes.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... airplanes and jet airplanes. 36.7 Section 36.7 Aeronautics and Space FEDERAL AVIATION ADMINISTRATION... paragraph (b) of this section: (1) Airplanes with high bypass ratio jet engines. For an airplane that has jet engines with a bypass ratio of 2 or more before a change in type design— (i) The airplane,...

  5. 14 CFR 36.7 - Acoustical change: Transport category large airplanes and jet airplanes.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... airplanes and jet airplanes. 36.7 Section 36.7 Aeronautics and Space FEDERAL AVIATION ADMINISTRATION... paragraph (b) of this section: (1) Airplanes with high bypass ratio jet engines. For an airplane that has jet engines with a bypass ratio of 2 or more before a change in type design— (i) The airplane,...

  6. 76 FR 69685 - Airworthiness Directives; The Boeing Company Model 767-200 and -300 Series Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-11-09

    ... information describes procedures for repetitive detailed inspections or surface high frequency eddy current... Airplanes Organization Designation Authorization (ODA) whom we have authorized to make those findings. Costs... estimate the following costs to comply with this proposed AD: Estimated Costs Cost on U.S. Action...

  7. 75 FR 27969 - Airworthiness Directives; The Boeing Company Model 737-100 and -200 Series Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-05-19

    ... cracking and damaged fasteners of certain fuselage frames and stub beams, and corrective actions if... the inboard chord fastener hole of the frame at body station 639, stringer S-16, and corrective... inspections for the repaired or modified frame only. For airplanes on which the modification or repair is...

  8. 77 FR 24342 - Airworthiness Directives; Empresa Brasileira de Aeronautica S.A. (EMBRAER) Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-04-24

    ... inspection requirements. Since we issued that AD, during full scale fatigue testing, cracks were found in... correct an unsafe condition for the specified products. The MCAI states: During the airplane full scale... AD was prompted by cracks found in certain structural components during full scale fatigue testing...

  9. 75 FR 80742 - Airworthiness Directives; McDonnell Douglas Corporation Model MD-90-30 Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-12-23

    ... MD-90-30 airplanes. This proposed AD would require repetitive inspections for cracking of the left.... This proposed AD was prompted by a report of a crack found in the upper skin panel at the aft inboard corner of a right horizontal stabilizer. We are proposing this AD to detect and correct cracks in...

  10. 78 FR 70892 - Airworthiness Directives; ATR-GIE Avions de Transport Régional Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-11-27

    ... directive (AD) 2009-18- 18, which applies to certain ATR--GIE Avions de Transport R gional Model ATR42 and ATR72 airplanes. AD 2009-18-18 requires repetitive inspections for damage and absence of repair of the cockpit forward side windows, and replacement if necessary. Since we issued that AD, we received...

  11. 75 FR 38001 - Airworthiness Directives; The Boeing Company Model 747 Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-07-01

    ...-073-AD; Amendment 39-16352; AD 2010-14-07] RIN 2120-AA64 Airworthiness Directives; The Boeing Company...). ACTION: Final rule. SUMMARY: The FAA is superseding an existing airworthiness directive (AD), which applies to certain Model 747 airplanes. That AD currently requires repetitive inspections of the...

  12. 75 FR 17879 - Airworthiness Directives; The Cessna Aircraft Company Model 750 Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-04-08

    ... proposed AD would require inspecting for cracks and corrosion of the bracket of the inboard horizontal... applicability to remove certain airplanes. This proposed AD results from a report of cracking and corrosion... AD to prevent such cracking and corrosion of the elevator inboard-hinge brackets and the...

  13. 79 FR 43604 - Airworthiness Directives; Fokker Services B.V. Airplanes

    Code of Federal Regulations, 2014 CFR

    2014-07-28

    ... carbon fiber reinforced plastic (CFRP) main landing gear (MLG) outboard door had detached. In addition... brackets on the modified CFRP MLG outboard doors. This AD requires a detailed inspection of the CFRP MLG... bolts; replacement of the bolt if necessary; and, for certain airplanes, modification of the CFRP...

  14. 75 FR 15357 - Airworthiness Directives; The Boeing Company Model 767 Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-03-29

    ... airplanes. This proposed AD would require repetitive inspections to detect fatigue cracking in the upper... this AD to detect and correct fatigue cracking in the upper wing skin at the fastener holes common to... October 28, 1999. Further Boeing analysis has determined the cracks to be a result of fatigue due...

  15. Trend of airplane flight characteristics

    NASA Technical Reports Server (NTRS)

    Von Koppen, Joachim

    1933-01-01

    This report describes the development of airplane characteristics since the war and indicates the direction development should take in the immediate future. Some of the major topics include: the behavior of an airplane about its lateral, vertical, and longitudinal axes. Behavior at large angles of attack and landing characteristics are also included.

  16. 77 FR 55163 - Airworthiness Directives; Airbus Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-09-07

    ... Federal Aviation Administration 14 CFR Part 39 RIN 2120-AA64 Airworthiness Directives; Airbus Airplanes... directive (AD) for certain Airbus Model A330-200, A330-300, A340-200, and A340- 300 series airplanes; and Model A340-541 airplanes and Model A340-642 airplanes. That NPRM proposed to require performing...

  17. 78 FR 78694 - Airworthiness Directives; Airbus Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-12-27

    ...-223-AD; Amendment 39-17704; AD 2013-25-08] RIN 2120-AA64 Airworthiness Directives; Airbus Airplanes... series airplanes, and Model A340-200 and -300 series airplanes. AD 2009-24-09 required a repetitive... ] hydraulic systems on airplanes that have had a certain modification embodied during production or...

  18. 77 FR 48425 - Airworthiness Directives; Airbus Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-08-14

    ...-225-AD; Amendment 39-17152; AD 2012-16-05] RIN 2120-AA64 Airworthiness Directives; Airbus Airplanes... freighter series airplanes; and Model A340-200, -300, -500, and -600 series airplanes. This AD was prompted... circuit for the fuel pumps for the center fuel tanks for certain airplanes, and center and rear fuel...

  19. 77 FR 48427 - Airworthiness Directives; Airbus Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-08-14

    ...-209-AD; Amendment 39-17153; AD 2012-16-06] RIN 2120-AA64 Airworthiness Directives; Airbus Airplanes... airplanes and Model A310-203, -204, - 221, and -222 airplanes. This AD was prompted by a report of a... loss of the airplane. DATES: This AD becomes effective September 18, 2012. The Director of the...

  20. 78 FR 21227 - Airworthiness Directives; Airbus Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-04-10

    ... Airplanes AGENCY: Federal Aviation Administration (FAA), Department of Transportation (DOT). ACTION: Final...-200 Freighter, A330-300, A340-200, and A340-300 series airplanes; and Model A340-541 airplanes and Model A340- 642 airplanes. This AD was prompted by reports of cracks in the bogie pivot pin caused...

  1. 77 FR 37797 - Airworthiness Directives; Airbus Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-06-25

    ...-059-AD; Amendment 39-17092; AD 2012-12-12] RIN 2120-AA64 Airworthiness Directives; Airbus Airplanes.... SUMMARY: We are adopting a new airworthiness directive (AD) for all Airbus Model A330-200 series airplanes; Airbus Model A330-200 Freighter series airplanes; Airbus Model A330-300 series airplanes; Airbus...

  2. 78 FR 59295 - Airworthiness Directives; Airbus Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-09-26

    ... Federal Aviation Administration 14 CFR Part 39 RIN 2120-AA64 Airworthiness Directives; Airbus Airplanes... Model A330-201, -202, -203, -223, - 223F, -243, and -243F Airplanes, Model A330-300 series airplanes, and Model A340-200, A340-300, A340-500, and A340-600 series airplanes. AD 2010-23-12...

  3. 14 CFR 23.3 - Airplane categories.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... 14 Aeronautics and Space 1 2010-01-01 2010-01-01 false Airplane categories. 23.3 Section 23.3... STANDARDS: NORMAL, UTILITY, ACROBATIC, AND COMMUTER CATEGORY AIRPLANES General § 23.3 Airplane categories. (a) The normal category is limited to airplanes that have a seating configuration, excluding...

  4. 14 CFR 23.3 - Airplane categories.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... 14 Aeronautics and Space 1 2011-01-01 2011-01-01 false Airplane categories. 23.3 Section 23.3... STANDARDS: NORMAL, UTILITY, ACROBATIC, AND COMMUTER CATEGORY AIRPLANES General § 23.3 Airplane categories. (a) The normal category is limited to airplanes that have a seating configuration, excluding...

  5. 77 FR 49705 - Airworthiness Directives; Airbus Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-08-17

    .... SUMMARY: We are adopting a new airworthiness directive (AD) for certain Airbus Model A318-112 and -121 airplanes; Model A319-111, -112, -115, - 132, and -133 airplanes; Model A320-214, -232, and -233 airplanes; and Model A321-211, -212, -213, and -231 airplanes. This AD was prompted by reports that some...

  6. Remote Inspection Challenge

    ERIC Educational Resources Information Center

    Roman, Harry T.

    2013-01-01

    The ability to remotely inspect equipment of an aging infrastructure is becoming of major interest to many industries. Often the ability to just get a look at a piece of critical equipment can yield very important information. With millions of miles of piping installed throughout the United States, this vast network is critical to oil, natural…

  7. Experimental test of airplane boarding methods

    SciTech Connect

    Steffen, Jason H.; Hotchkiss, Jon

    2011-10-26

    We report the results of an experimental comparison of different airplane boarding methods. This test was conducted in a mock 757 fuselage, located on a Southern California soundstage, with 12 rows of six seats and a single aisle. Five methods were tested using 72 passengers of various ages. We found a significant reduction in the boarding times of optimized methods over traditional methods. These improved methods, if properly implemented, could result in a significant savings to airline companies. The process of boarding an airplane is of interest to a variety of groups. The public is interested both as a curiosity, as it is something that they may regularly experience, and as a consumer, as their experiences good or bad can affect their loyalties. Airline companies and their employees also have a stake in an efficient boarding procedure as time saved in the boarding process may result is monetary savings, in the quality of interactions with passengers, and in the application of human resources to the general process of preparing an airplane for departure. A recent study (Nyquist and McFadden, 2008) indicates that the average cost to an airline company for each minute of time spent at the terminal is roughly $30. Thus, each minute saved in the turn-around time of a flight has the potential to generate over $16,000,000 in annual savings (assuming an average of 1500 flights per day). While the boarding process may not be the primary source of delay in returning an airplane to the skies, reducing the boarding time may effectively eliminate passenger boarding as a contributor in any meaningful measure. Consequently, subsequent efforts to streamline the other necessary tasks, such as refueling and maintenance, would be rewarded with a material reduction in time at the gate for each flight.

  8. Experimental test of airplane boarding methods

    DOE PAGES

    Steffen, Jason H.; Hotchkiss, Jon

    2011-10-26

    We report the results of an experimental comparison of different airplane boarding methods. This test was conducted in a mock 757 fuselage, located on a Southern California soundstage, with 12 rows of six seats and a single aisle. Five methods were tested using 72 passengers of various ages. We found a significant reduction in the boarding times of optimized methods over traditional methods. These improved methods, if properly implemented, could result in a significant savings to airline companies. The process of boarding an airplane is of interest to a variety of groups. The public is interested both as a curiosity,more » as it is something that they may regularly experience, and as a consumer, as their experiences good or bad can affect their loyalties. Airline companies and their employees also have a stake in an efficient boarding procedure as time saved in the boarding process may result is monetary savings, in the quality of interactions with passengers, and in the application of human resources to the general process of preparing an airplane for departure. A recent study (Nyquist and McFadden, 2008) indicates that the average cost to an airline company for each minute of time spent at the terminal is roughly $30. Thus, each minute saved in the turn-around time of a flight has the potential to generate over $16,000,000 in annual savings (assuming an average of 1500 flights per day). While the boarding process may not be the primary source of delay in returning an airplane to the skies, reducing the boarding time may effectively eliminate passenger boarding as a contributor in any meaningful measure. Consequently, subsequent efforts to streamline the other necessary tasks, such as refueling and maintenance, would be rewarded with a material reduction in time at the gate for each flight.« less

  9. 76 FR 59008 - Airworthiness Directives; Airbus Model A300 B4-600, B4-600R, and F4-600R Series Airplanes, and...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-09-23

    ..., -304, -322, -324, and -325 airplanes; certificated in any category; equipped with carbon fiber... inspection required by paragraph (g)(3) of this AD two times at intervals not to exceed 4,500 flight cycles, but not fewer than 4,000 flight cycles from the most recent inspection. (h) For rudders identified...

  10. 76 FR 61645 - Airworthiness Directives; Airbus Model A330-200 Series Airplanes; Model A330-300 Series Airplanes...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-10-05

    ...-200 Series Airplanes; Model A330-300 Series Airplanes; Model A340-200 Series Airplanes; and Model A340-300 Series Airplanes AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Notice of...

  11. Blended Buffet-Load-Alleviation System for Fighter Airplane

    NASA Technical Reports Server (NTRS)

    Moses, Robert W.

    2005-01-01

    The capability of modern fighter airplanes to sustain flight at high angles of attack and/or moderate angles of sideslip often results in immersion of part of such an airplane in unsteady, separated, vortical flow emanating from its forebody or wings. The flows from these surfaces become turbulent and separated during flight under these conditions. These flows contain significant levels of energy over a frequency band coincident with that of low-order structural vibration modes of wings, fins, and control surfaces. The unsteady pressures applied to these lifting surfaces as a result of the turbulent flows are commonly denoted buffet loads, and the resulting vibrations of the affected structures are known as buffeting. Prolonged exposure to buffet loads has resulted in fatigue of structures on several airplanes. Damage to airplanes caused by buffeting has led to redesigns of airplane structures and increased support costs for the United States Air Force and Navy as well as the armed forces of other countries. Time spent inspecting, repairing, and replacing structures adversely affects availability of aircraft for missions. A blend of rudder-control and piezoelectric- actuator engineering concepts was selected as a basis for the design of a vertical-tail buffet-load-alleviation system for the F/A-18 airplane. In this system, the rudder actuator is used to control the response of the first tail vibrational mode (bending at a frequency near 15 Hz), while directional patch piezoelectric actuators are used to control the second tail vibrational mode (tip torsion at a frequency near 45 Hz). This blend of two types of actuator utilizes the most effective features of each. An analytical model of the aeroservoelastic behavior of the airplane equipped with this system was validated by good agreement with measured results from a full-scale ground test, flight-test measurement of buffet response, and an in-flight commanded rudder frequency sweep. The overall performance of the

  12. OSHA Inspections

    DTIC Science & Technology

    2000-01-01

    Under the Occupational Safety and Health Act of 1970 (the Act), the Occupational Safety and Health Administration (OSHA) is authorized to conduct... occupational safety and health field and who are trained in OSHA standards and in the recognition of safety and health hazards. Similarly, states with...their own occupational safety and health programs conduct inspection using qualified state compliance safety and health officers.

  13. Airplane Upset Training Evaluation Report

    NASA Technical Reports Server (NTRS)

    Gawron, Valerie J.; Jones, Patricia M. (Technical Monitor)

    2002-01-01

    Airplane upset accidents are a leading factor in hull losses and fatalities. This study compared five types of airplane-upset training. Each group was composed of eight, non-military pilots flying in their probationary year for airlines operating in the United States. The first group, 'No aero / no upset,' was made up of pilots without any airplane upset training or aerobatic flight experience; the second group, 'Aero/no upset,' of pilots without any airplane-upset training but with aerobatic experience; the third group, 'No aero/upset,' of pilots who had received airplane-upset training in both ground school and in the simulator; the fourth group, 'Aero/upset,' received the same training as Group Three but in addition had aerobatic flight experience; and the fifth group, 'In-flight' received in-flight airplane upset training using an instrumented in-flight simulator. Recovery performance indicated that clearly training works - specifically, all 40 pilots recovered from the windshear upset. However few pilots were trained or understood the use of bank to change the direction of the lift vector to recover from nose high upsets. Further, very few thought of, or used differential thrust to recover from rudder or aileron induced roll upsets. In addition, recovery from icing-induced stalls was inadequate.

  14. Jet propulsion for airplanes

    NASA Technical Reports Server (NTRS)

    Buckingham, Edgar

    1924-01-01

    This report is a description of a method of propelling airplanes by the reaction of jet propulsion. Air is compressed and mixed with fuel in a combustion chamber, where the mixture burns at constant pressure. The combustion products issue through a nozzle, and the reaction of that of the motor-driven air screw. The computations are outlined and the results given by tables and curves. The relative fuel consumption and weight of machinery for the jet, decrease as the flying speed increases; but at 250 miles per hour the jet would still take about four times as much fuel per thrust horsepower-hour as the air screw, and the power plant would be heavier and much more complicated. Propulsion by the reaction of a simple jet can not compete with air screw propulsion at such flying speeds as are now in prospect.

  15. 76 FR 4219 - Airworthiness Directives; Airbus Model A330-200 Series Airplanes; Model A330-300 Series Airplanes...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-01-25

    ...-200 Series Airplanes; Model A330-300 Series Airplanes; Model A340-200 Series Airplanes; and Model A340-300 Series Airplanes AGENCY: Federal Aviation Administration (FAA), Department of Transportation (DOT... airplanes) or TR150 (for Model A340-200 and -300 series airplanes), both Issue 1.0, both dated December...

  16. Thermographic inspection of massive structures

    SciTech Connect

    Renshaw, Jeremy B.; Guimaraes, Maria; Scott, David B.

    2014-02-18

    Nondestructive Evaluation of concrete structures is a growing concern for the nuclear industry as well as for many other industries. As critical concrete components continue to age, the ability to assess the health and suitability for continued service has become a key consideration. In some cases, repair of these structures is difficult and expensive, while replacement is prohibitively expensive or, in some cases, not feasible. Therefore, the ability to inspect these key assets is a primary concern, especially in the nuclear industry. Due to the large size of containment buildings, cooling towers, and other large concrete assets, the ability to rapidly inspect for defects of concern is very desirable. Thermographic inspection appears to have the required ability to rapidly inspect large structures to ascertain the location and size of many of the defects of concern. This ability was demonstrated by performing a thermographic inspection of a large concrete dam in 2 days.

  17. 14 CFR 121.605 - Airplane equipment.

    Code of Federal Regulations, 2013 CFR

    2013-01-01

    ..., FLAG, AND SUPPLEMENTAL OPERATIONS Dispatching and Flight Release Rules § 121.605 Airplane equipment. No person may dispatch or release an airplane unless it is airworthy and is equipped as prescribed in §...

  18. 14 CFR 121.605 - Airplane equipment.

    Code of Federal Regulations, 2012 CFR

    2012-01-01

    ..., FLAG, AND SUPPLEMENTAL OPERATIONS Dispatching and Flight Release Rules § 121.605 Airplane equipment. No person may dispatch or release an airplane unless it is airworthy and is equipped as prescribed in §...

  19. 14 CFR 121.605 - Airplane equipment.

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ..., FLAG, AND SUPPLEMENTAL OPERATIONS Dispatching and Flight Release Rules § 121.605 Airplane equipment. No person may dispatch or release an airplane unless it is airworthy and is equipped as prescribed in §...

  20. 78 FR 46543 - Airworthiness Directives; Airbus Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-08-01

    ... Federal Aviation Administration 14 CFR Part 39 RIN 2120-AA64 Airworthiness Directives; Airbus Airplanes...: We propose to adopt a new airworthiness directive (AD) for all Airbus Model A330-300 series airplanes and Model A340-200 and -300 series airplanes. This proposed AD was prompted by reports of...

  1. 78 FR 28159 - Airworthiness Directives; Airbus Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-05-14

    ... Federal Aviation Administration 14 CFR Part 39 RIN 2120-AA64 Airworthiness Directives; Airbus Airplanes...: We propose to adopt a new airworthiness directive (AD) for certain Airbus Model A300 series airplanes; Model A300 B4-600, B4-600R, and F4-600R series airplanes, and Model A300 C4-605R Variant F...

  2. 14 CFR 121.605 - Airplane equipment.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... 14 Aeronautics and Space 3 2010-01-01 2010-01-01 false Airplane equipment. 121.605 Section 121.605..., FLAG, AND SUPPLEMENTAL OPERATIONS Dispatching and Flight Release Rules § 121.605 Airplane equipment. No person may dispatch or release an airplane unless it is airworthy and is equipped as prescribed in §...

  3. 14 CFR 121.605 - Airplane equipment.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... 14 Aeronautics and Space 3 2011-01-01 2011-01-01 false Airplane equipment. 121.605 Section 121.605..., FLAG, AND SUPPLEMENTAL OPERATIONS Dispatching and Flight Release Rules § 121.605 Airplane equipment. No person may dispatch or release an airplane unless it is airworthy and is equipped as prescribed in §...

  4. 77 FR 16492 - Airworthiness Directives; Airbus Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-03-21

    ... Federal Aviation Administration 14 CFR Part 39 RIN 2120-AA64 Airworthiness Directives; Airbus Airplanes... airplanes. This proposed AD was prompted by reports that some nuts installed on the wing, including on... the airplane wings being impaired. DATES: We must receive comments on this proposed AD by May 7,...

  5. 78 FR 37498 - Airworthiness Directives; Airbus Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-06-21

    ... Federal Aviation Administration 14 CFR Part 39 RIN 2120-AA64 Airworthiness Directives; Airbus Airplanes... Freighter, and -300 series airplanes. This proposed AD was prompted by a report that a certain wire harness... resulting in an uncontrolled fire and subsequent loss of the airplane. DATES: We must receive comments...

  6. 14 CFR 125.93 - Airplane limitations.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... 14 Aeronautics and Space 3 2010-01-01 2010-01-01 false Airplane limitations. 125.93 Section 125.93...: AIRPLANES HAVING A SEATING CAPACITY OF 20 OR MORE PASSENGERS OR A MAXIMUM PAYLOAD CAPACITY OF 6,000 POUNDS OR MORE; AND RULES GOVERNING PERSONS ON BOARD SUCH AIRCRAFT Airplane Requirements § 125.93...

  7. 14 CFR 125.93 - Airplane limitations.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... 14 Aeronautics and Space 3 2011-01-01 2011-01-01 false Airplane limitations. 125.93 Section 125.93...: AIRPLANES HAVING A SEATING CAPACITY OF 20 OR MORE PASSENGERS OR A MAXIMUM PAYLOAD CAPACITY OF 6,000 POUNDS OR MORE; AND RULES GOVERNING PERSONS ON BOARD SUCH AIRCRAFT Airplane Requirements § 125.93...

  8. 78 FR 14029 - Airworthiness Directives; Airbus Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-03-04

    ... Federal Aviation Administration 14 CFR Part 39 RIN 2120-AA64 Airworthiness Directives; Airbus Airplanes..., A319-112, A319-115, A319-132, and A319-133 airplanes. This proposed AD was prompted by a report that a...-14 lower shell panel, was not installed on airplanes during production. This proposed AD...

  9. 78 FR 19085 - Airworthiness Directives; Airbus Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-03-29

    ...-234-AD; Amendment 39-17399; AD 2013-06-03] RIN 2120-AA64 Airworthiness Directives; Airbus Airplanes... A321 series airplanes. This AD was prompted by reports of oil residue between the stator and the rotor... airplane. DATES: This AD becomes effective May 3, 2013. The Director of the Federal Register approved...

  10. 78 FR 7261 - Airworthiness Directives; Airbus Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-02-01

    ...-070-AD; Amendment 39-17332; AD 2013-02-11] RIN 2120-AA64 Airworthiness Directives; Airbus Airplanes.... SUMMARY: We are adopting a new airworthiness directive (AD) for all Airbus Model A310-203 airplanes. This... Airplane Directorate, FAA, 1601 Lind Avenue SW., Renton, WA 98057-3356; telephone (425) 227-2125; fax...

  11. 78 FR 28152 - Airworthiness Directives; Airbus Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-05-14

    ...: We propose to supersede an existing airworthiness directive (AD) that applies to certain Airbus Model A318-111 and -112 airplanes, Model A319 series airplanes, Model A320 series airplanes, and Model A321... relevant data, views, or arguments about this proposed AD. Send your comments to an address listed...

  12. 77 FR 58336 - Airworthiness Directives; Airbus Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-09-20

    ... could lead to a breach through the door or the door detaching from the airplane, resulting in potential... airplane or have a breach through the door, resulting in potential decompression. Required actions include... leading to failure of the door, which could detach from the airplane or have a breach through the...

  13. 76 FR 1351 - Airworthiness Directives; The Boeing Company Model 757-200, -200CB, and -300 Series Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-01-10

    ... Model 757-200, - 200CB, and -300 Series Airplanes AGENCY: Federal Aviation Administration (FAA), DOT... exceed 30 flight cycles. Option B: At intervals not to exceed 300 flight cycles. Option C: At intervals... interval of 300 flight cycles to extend the Option B repeat inspection up to 330 flight cycles, and...

  14. Air resistance measurements on actual airplane parts

    NASA Technical Reports Server (NTRS)

    Weiselsberger, C

    1923-01-01

    For the calculation of the parasite resistance of an airplane, a knowledge of the resistance of the individual structural and accessory parts is necessary. The most reliable basis for this is given by tests with actual airplane parts at airspeeds which occur in practice. The data given here relate to the landing gear of a Siemanms-Schuckert DI airplane; the landing gear of a 'Luftfahrzeug-Gesellschaft' airplane (type Roland Dlla); landing gear of a 'Flugzeugbau Friedrichshafen' G airplane; a machine gun, and the exhaust manifold of a 269 HP engine.

  15. 77 FR 47267 - Airworthiness Directives; The Boeing Company Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-08-08

    ... Model 747-200B series airplanes having a stretched upper deck. The existing AD currently requires...-300, 747-400, and 747-400D series airplanes; and Model 747-200B series airplanes having a stretched..., and 747-400D series airplanes; and Model 747-200B series airplanes having a stretched upper...

  16. 77 FR 5195 - Airworthiness Directives; The Boeing Company Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-02-02

    ... series airplanes; and Model 747-200B series airplanes having a stretched upper deck. The original NPRM...; and Model 747-200B series airplanes having a stretched upper deck. The original NPRM was published in... series airplanes; and Model 747-200B series airplanes having a stretched upper deck; certificated in...

  17. 77 FR 50411 - Airworthiness Directives; The Boeing Company Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-08-21

    ... Material Specification (BMS) 8-39 urethane foam, and a report from the airplane manufacturer that airplanes... Airplanes AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Notice of proposed rulemaking (NPRM... 747SP series airplanes; Model 767-200, -300, -300F, and -400ER series airplanes; and Model...

  18. [Costicartilage analysis inspection technology in the application of forensic medicine].

    PubMed

    Meng, Hang; Xiao, Bi; Yan, Jian-Jun; Ma, Kai-Jun

    2011-10-01

    The traditional costicartilage analysis inspection is limited to morphological inspection. In recent years, with the development of forensic radiology and molecular genetics, the costicartilage analysis inspection technology has been further enriched and developed. At present, the costicartilage analysis inspection technology have been able to be used in the practice of forensic medicine. This paper reviews the research advances about the costicartilage analysis inspection technology in the identification of human gender, age and so on in order to provide the references for forensic appraisers.

  19. Paper Airplanes: A Classroom Activity

    ERIC Educational Resources Information Center

    Painter, Richard A.

    1976-01-01

    A learning experience is described for upper elementary or junior high students involving the manufacture, transportation, and marketing of a product for consumers. Steps are given and roles are assigned for students to convert raw material (paper) to a finished product (paper airplanes) and to sell it. (AV)

  20. The Testing of Airplane Fabrics

    NASA Technical Reports Server (NTRS)

    Schraivogel, Karl

    1932-01-01

    This report considers the determining factors in the choice of airplane fabrics, describes the customary methods of testing and reports some of the experimental results. To sum up briefly the results obtained with the different fabrics, it may be said that increasing the strength of covering fabrics by using coarser yarns ordinarily offers no difficulty, because the weight increment from doping is relatively smaller.

  1. Vibration Response of Airplane Structures

    NASA Technical Reports Server (NTRS)

    Theodorsen, Theodore; Gelalles, A G

    1935-01-01

    This report presents test results of experiments on the vibration-response characteristics of airplane structures on the ground and in flight. It also gives details regarding the construction and operation of vibration instruments developed by the National Advisory Committee for Aeronautics.

  2. Testing a Windmill Airplane ("autogiro")

    NASA Technical Reports Server (NTRS)

    Seiferth, R

    1927-01-01

    In order to clear up the matter ( In the Spanish report it was stated that the reference surface for the calculation of the coefficients c(sub a) and c(sub w) was the area of all four wings, instead of a single wing), the model of a windwill airplane was tested in the Gottingen wind tunnel.

  3. Glues Used in Airplane Parts

    NASA Technical Reports Server (NTRS)

    Allen, S W; Truax, T R

    1920-01-01

    This report was prepared for the National Advisory Committee for Aeronautics and presents the results of investigations conducted by the Forest Products Laboratory of the United States Forest Service on the manufacture, preparation, application, testing and physical properties of the different types of glues used in wood airplane parts.

  4. Federal Aviation Administration aircraft inspection research and develoment programs

    NASA Astrophysics Data System (ADS)

    Smith, Christopher D.

    1996-11-01

    A substantial and coordinated program in inspection system research was initiated at the FAA Technical Center in 1990 as part of the National Aging Aircraft Research Program. the primary objectives of the inspection systems initiative are to develop improved inspection techniques to address specific aging airframe and engine inspection problems and to evaluate and validate existing and emerging inspection systems. Advanced conventional technologies, emerging technologies, or combinations of technologies are investigated for their ability to accurately and reliably detect cracks, disbonds, corrosion, and other damage. This paper will present an overview of FAA inspection system research initiatives, but will focus primarily on the technical issues which have defined and prioritized those initiatives.

  5. 14 CFR 121.207 - Provisionally certificated airplanes: Operating limitations.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... 14 Aeronautics and Space 3 2010-01-01 2010-01-01 false Provisionally certificated airplanes... AND OPERATIONS OPERATING REQUIREMENTS: DOMESTIC, FLAG, AND SUPPLEMENTAL OPERATIONS Airplane Performance Operating Limitations § 121.207 Provisionally certificated airplanes: Operating limitations....

  6. 14 CFR 121.207 - Provisionally certificated airplanes: Operating limitations.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... 14 Aeronautics and Space 3 2011-01-01 2011-01-01 false Provisionally certificated airplanes... AND OPERATIONS OPERATING REQUIREMENTS: DOMESTIC, FLAG, AND SUPPLEMENTAL OPERATIONS Airplane Performance Operating Limitations § 121.207 Provisionally certificated airplanes: Operating limitations....

  7. 78 FR 63845 - Special Conditions: Embraer S.A., Model EMB-550 Airplanes; Isolation or Airplane Electronic...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-10-25

    ...; Isolation or Airplane Electronic System Security Protection From Unauthorized Internal Access AGENCY... diverse set of functions, including: Flight-safety related control and navigation systems, Airline...-550 airplanes. Isolation or Airplane Electronic System Security Protection From Unauthorized...

  8. Annoyance caused by propeller airplane flyover noise

    NASA Technical Reports Server (NTRS)

    Mccurdy, D. A.; Powell, C. A.

    1984-01-01

    Laboratory experiments were conducted to provide information on quantifying the annoyance response of people to propeller airplane noise. The items of interest were current noise metrics, tone corrections, duration corrections, critical band corrections, and the effects of engine type, operation type, maximum takeoff weight, blade passage frequency, and blade tip speed. In each experiment, 64 subjects judged the annoyance of recordings of propeller and jet airplane operations presented at d-weighted sound pressure levels of 70, 80, and 90 dB in a testing room which simulates the outdoor acoustic environment. The first experiment examined 11 propeller airplanes with maximum takeoff weights greater than or equal to 5700 kg. The second experiment examined 14 propeller airplanes weighting 5700 kg or less. Five jet airplanes were included in each experiment. For both the heavy and light propeller airplanes, perceived noise level and perceived level (Stevens Mark VII procedure) predicted annoyance better than other current noise metrics.

  9. Interaction Between Air Propellers and Airplane Structures

    NASA Technical Reports Server (NTRS)

    Durand, W F

    1927-01-01

    The purpose of this investigation was the determination of the character and amount of interaction between air propellers as usually mounted on airplanes and the adjacent parts of the airplane structure - or, more specifically, those parts of the airplane structure within the wash of the propeller, and capable of producing any significant effect on propeller performance. In report no. 177 such interaction between air propellers and certain simple geometrical forms was made the subject of investigation and report. The present investigation aims to carry this general study one stage further by substituting actual airplane structures for the simple geometrical forms. From the point of view of the present investigation, the airplane structures, viewed as an obstruction in the wake of the propeller, must also be viewed as a necessary part of the airplane and not as an appendage which might be installed or removed at will. (author)

  10. Headache during airplane travel ("airplane headache"): first case in Greece.

    PubMed

    Kararizou, Evangelia; Anagnostou, Evangelos; Paraskevas, George P; Vassilopoulou, Sofia D; Naoumis, Dimitrios; Kararizos, Grigoris; Spengos, Konstantinos

    2011-08-01

    Headache related to airplane flights is rare. We describe a 37-year-old female patient with multiple intense, jabbing headache episodes over the last 3 years that occur exclusively during airplane flights. The pain manifests during take-off and landing, and is located always in the left retro-orbital and frontotemporal area. It is occasionally accompanied by dizziness, but no additional symptoms occur. Pain intensity diminishes and disappears after 15-20 min. Apart from occasional dizziness, no other symptoms occur. The patient has a history of tension-type headache and polycystic ovaries. Blood tests and imaging revealed no abnormalities. Here, we present the first case in Greece. We review the current literature on this rare syndrome and discuss on possible pathophysiology and the investigation of possible co-factors such as anxiety and depression.

  11. 77 FR 73908 - Airworthiness Directives; The Boeing Company Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-12-12

    ... displays for airplane attitude, altitude, or airspeed, and consequently reduce the ability of the... airplane attitude, altitude, or airspeed, and consequently reduce the ability of the flightcrew to...

  12. Crash Tests of Protective Airplane Floors

    NASA Technical Reports Server (NTRS)

    Carden, H. D.

    1986-01-01

    Energy-absorbing floors reduce structural buckling and impact forces on occupants. 56-page report discusses crash tests of energy-absorbing aircraft floors. Describes test facility and procedures; airplanes, structural modifications, and seats; crash dynamics; floor and seat behavior; and responses of anthropometric dummies seated in airplanes. Also presents plots of accelerations, photographs and diagrams of test facility, and photographs and drawings of airplanes before, during, and after testing.

  13. Flight flutter testing the B-58 airplane

    NASA Technical Reports Server (NTRS)

    Mahaffey, P. T.

    1975-01-01

    The flight flutter tests on the B-58 airplane are described, and the philosophy of flight flutter testing is discussed. The instrumentation used in the airplane and in the telemetering receiving station on the ground is described along with the methods used for exciting the airplane and the flight test procedure. Also described is the type of data obtained and its reduction. An evaluation of the procedure and instrumentation is given with a discussion of desirable improvements for future testing.

  14. Analysis of Stresses in German Airplanes

    NASA Technical Reports Server (NTRS)

    Hoff, Wilhelm

    1923-01-01

    This report contains an account of the origin of the views and fundamental principles underlying the construction of German airplanes during the war. The report contains a detailed discussion of the aerodynamic principles and their use in determining the strength of airplanes, the analysis of the strength qualities of materials and in the construction, the calculated strength of air flows and a description of tests made in determining the strength of airplanes.

  15. Simulator study of vortex encounters by a twin-engine, commercial, jet transport airplane

    NASA Technical Reports Server (NTRS)

    Hastings, E. C., Jr.; Keyser, G. L., Jr.

    1982-01-01

    A simulator study of vortex encounters was conducted for a twin-engine, commercial, jet transport airplane encountering the vortex flow field of a heavy, four-engine, commercial, jet transport airplane in the final-approach configuration. The encounters were conducted with fixed controls and with a pilot using a state-of-the-art, manual-control system. Piloted encounters with the base-line vortex flow field out of ground effect (unattenuated) resulted in initial bank-angle excursions greater than 40 deg, coupled with initial sideslip-angle excursions greater than 10 deg. The severity of these initial upsets was significantly reduced when the vortex center was moved laterally or vertically away from the flight path of the encountering airplane. Smaller reductions occurred when the flow field was attenuated by the flight spoilers on the generating airplane. The largest reduction in the severity of the initial upsets, however, was from aging in ground effect. The severity of the initial upsets of the following airplane was relatively unaffected by the approach speed. Increasing the lift coefficient of the generating airplane resulted in an increase in the severity of the initial upsets.

  16. Does periodic vehicle inspection prevent accidents?

    PubMed

    White, W T

    1986-02-01

    The hypothesis that periodic motor vehicle inspection (PMVI) has no safety effect was tested using accident involvement rates analysed by "vehicle age" and "time since the most recent inspection." The alternative of interest was that the probability of accident is lowest (ceteris paribus) immediately after an inspection, and subsequently increases over time. Two types of adjustment for exposure variations by time since last inspection were made, yielding two kinds of accident involvement rate. The first accident rate was the proportion of accident-involved vehicles having "preventable" defects which could possibly have helped to cause the accident. The second accident rate was the number of accident-involved vehicles divided by the number of inspected vehicles, and amounted to an adjustment for premature re-inspection. The observed probability of accident involvement (as measured by either rate) was found to increase with time since last inspection. This result supports the alternative hypothesis that a mandatory safety inspection has an immediate safety benefit which decreases over time. In neither analysis was there an interaction between vehicle age group and "week since inspection."

  17. 75 FR 35356 - Airworthiness Directives; The Boeing Company Model 747-100, 747-200B, and 747-200F Series Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-06-22

    ... correct fatigue cracking and corrosion in the fuselage upper lobe skin lap joints, which could lead to... corrosion, and related investigative and corrective actions. We issued that AD to detect and correct fatigue... airplanes. That AD requires inspections to detect fatigue cracking and corrosion of the skin panel...

  18. 75 FR 61977 - Airworthiness Directives; The Boeing Company Model 747-100, 747-200B, and 747-200F Series Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-10-07

    .... The existing ADs currently require inspections to detect fatigue-related skin cracks and corrosion of... skin at the upper lobe skin lap joints for cracks and evidence of corrosion, and related investigative... cracking on modified airplanes. We are issuing this AD to detect and correct fatigue cracking and...

  19. 77 FR 65799 - Airworthiness Directives; Airbus Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-10-31

    ... electrical power generation, could result in reduced control of the airplane. DATES: This AD becomes... total engine flame out, or during a total loss of normal electrical power generation, could possibly... power generation, could result in reduced control of the airplane. (f) Compliance You are...

  20. 78 FR 68347 - Airworthiness Directives; Airbus Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-11-14

    ... solution, EASA issued Emergency AD 2009-0012-E to require implementation of an aircraft Flight Manual (AFM..., Congress charges the FAA with promoting safe flight of civil aircraft in air commerce by prescribing... airplanes. AD 2009-04-07 required revising the airplane flight manual (AFM) to include...

  1. 78 FR 15279 - Airworthiness Directives; Airbus Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-03-11

    ... mode, in case of go-around, might lead to a temporary loss of airplane longitudinal control. This AD... an erroneous indication. These tests concluded that with engaged flare and retard mode, in case of go... case of go-around, might lead to a temporary loss of airplane longitudinal control. We are issuing...

  2. 14 CFR 125.355 - Airplane equipment.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... 14 Aeronautics and Space 3 2010-01-01 2010-01-01 false Airplane equipment. 125.355 Section 125.355...: AIRPLANES HAVING A SEATING CAPACITY OF 20 OR MORE PASSENGERS OR A MAXIMUM PAYLOAD CAPACITY OF 6,000 POUNDS OR MORE; AND RULES GOVERNING PERSONS ON BOARD SUCH AIRCRAFT Flight Release Rules § 125.355...

  3. 14 CFR 125.355 - Airplane equipment.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... 14 Aeronautics and Space 3 2011-01-01 2011-01-01 false Airplane equipment. 125.355 Section 125.355...: AIRPLANES HAVING A SEATING CAPACITY OF 20 OR MORE PASSENGERS OR A MAXIMUM PAYLOAD CAPACITY OF 6,000 POUNDS OR MORE; AND RULES GOVERNING PERSONS ON BOARD SUCH AIRCRAFT Flight Release Rules § 125.355...

  4. 77 FR 1622 - Airworthiness Directives; Socata Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-01-11

    ... INFORMATION CONTACT: Albert Mercado, Aerospace Engineer, FAA, Small Airplane Directorate, 901 Locust, Room 301, Kansas City, Missouri 64106; telephone: (816) 329-4119; fax: (816) 329-4090; email: albert.mercado@faa... information to ATTN: Albert Mercado, Aerospace Engineer, FAA, Small Airplane Directorate, 901 Locust, Room...

  5. 78 FR 72834 - Airworthiness Directives; SOCATA Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-12-04

    ... INFORMATION CONTACT: Albert Mercado, Aerospace Engineer, FAA, Small Airplane Directorate, 901 Locust, Room 301, Kansas City, Missouri 64106; telephone: (816) 329-4119; fax: (816) 329-4090; email: albert.mercado@faa...: Albert Mercado, Aerospace Engineer, FAA, Small Airplane Directorate, 901 Locust, Room 301, Kansas...

  6. Research on the control of airplanes

    NASA Technical Reports Server (NTRS)

    Jones, B Melvill

    1928-01-01

    Our task is to endeavor to obtain precise experimental records of the motion of stalled airplanes, both when left to themselves and when the pilot is trying to control them. The apparatus which we use consists of a box containing tree gyroscopes which are slightly deflected against a spring control when the airplane is turning.

  7. 78 FR 78705 - Airworthiness Directives; Airbus Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-12-27

    ... the first option would give operators a chance to fly a ferry flight to a more equipped resourced base... airplanes to a base where repairs, alterations, or maintenance can be performed. These airplanes may not....S.C. 552(a) and 1 CFR part 51. (2) You must use this service information as applicable to do...

  8. 78 FR 32345 - Airworthiness Directives; Airbus Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-05-30

    ... sufficient structural strength to enable the airplane to operate safely. This AD requires reinforcing the... sides of the aeroplane) may not have sufficient structural strength to enable the aeroplane to operate... have sufficient structural strength to enable the airplane to operate safely. We are issuing this AD...

  9. 77 FR 55681 - Airworthiness Directives; The Boeing Company Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-09-11

    ... Material of the Components of the Horizontal Stabilizer For airplanes identified in Boeing 707 Alert...-17176; AD 2012-17-13] RIN 2120-AA64 Airworthiness Directives; The Boeing Company Airplanes AGENCY... -100B short body series airplanes; Model 707-300, -300B, -300C, and - 400 series airplanes; and...

  10. 76 FR 72863 - Airworthiness Directives; The Boeing Company Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-11-28

    ... (for Model 707 airplanes, and Model 720 and 720B series airplanes). Determine Material of the... Airplanes AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Notice of proposed rulemaking (NPRM...-100 long body, -200, -100B long body, and -100B short body series airplanes; Model 707-300,...

  11. 14 CFR 21.5 - Airplane or Rotorcraft Flight Manual.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... 14 Aeronautics and Space 1 2010-01-01 2010-01-01 false Airplane or Rotorcraft Flight Manual. 21.5... CERTIFICATION PROCEDURES FOR PRODUCTS AND PARTS General § 21.5 Airplane or Rotorcraft Flight Manual. (a) With each airplane or rotorcraft that was not type certificated with an Airplane or Rotorcraft Flight...

  12. 78 FR 28128 - Airworthiness Directives; the Boeing Company Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-05-14

    ... Airplanes AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Final rule. SUMMARY: We are adopting a... airplanes. This AD was prompted by reports of two in-service occurrences on Model 737-400 airplanes of total..., inability to restart the engines, and consequent forced landing of the airplane. DATES: This AD is...

  13. 14 CFR 21.5 - Airplane or Rotorcraft Flight Manual.

    Code of Federal Regulations, 2013 CFR

    2013-01-01

    ... 14 Aeronautics and Space 1 2013-01-01 2013-01-01 false Airplane or Rotorcraft Flight Manual. 21.5... CERTIFICATION PROCEDURES FOR PRODUCTS AND PARTS General § 21.5 Airplane or Rotorcraft Flight Manual. (a) With each airplane or rotorcraft not type certificated with an Airplane or Rotorcraft Flight Manual...

  14. 14 CFR 21.5 - Airplane or Rotorcraft Flight Manual.

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ... 14 Aeronautics and Space 1 2014-01-01 2014-01-01 false Airplane or Rotorcraft Flight Manual. 21.5... CERTIFICATION PROCEDURES FOR PRODUCTS AND PARTS General § 21.5 Airplane or Rotorcraft Flight Manual. (a) With each airplane or rotorcraft not type certificated with an Airplane or Rotorcraft Flight Manual...

  15. 77 FR 5996 - Airworthiness Directives; The Boeing Company Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-02-07

    ... Airplanes AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Final rule. SUMMARY: We are adopting a... series airplanes. This AD was prompted by a report from the airplane manufacturer that airplanes were assembled with air distribution ducts in the environmental control system (ECS) wrapped with Boeing...

  16. 14 CFR 21.5 - Airplane or Rotorcraft Flight Manual.

    Code of Federal Regulations, 2012 CFR

    2012-01-01

    ... 14 Aeronautics and Space 1 2012-01-01 2012-01-01 false Airplane or Rotorcraft Flight Manual. 21.5... CERTIFICATION PROCEDURES FOR PRODUCTS AND PARTS General § 21.5 Airplane or Rotorcraft Flight Manual. (a) With each airplane or rotorcraft not type certificated with an Airplane or Rotorcraft Flight Manual...

  17. 76 FR 68666 - Airworthiness Directives; The Boeing Company Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-11-07

    ... Airworthiness Directives; The Boeing Company Airplanes AGENCY: Federal Aviation Administration (FAA), DOT... (AD) for certain The Boeing Company Model 737-100, -200, -200C, and -300 series airplanes. This proposed AD was prompted by a report from the airplane manufacturer that airplanes were assembled with...

  18. 14 CFR 91.821 - Civil supersonic airplanes: Noise limits.

    Code of Federal Regulations, 2012 CFR

    2012-01-01

    ... 14 Aeronautics and Space 2 2012-01-01 2012-01-01 false Civil supersonic airplanes: Noise limits... Noise Limits § 91.821 Civil supersonic airplanes: Noise limits. Except for Concorde airplanes having... airplane that does not comply with Stage 2 noise limits of part 36 in effect on October 13, 1977,...

  19. 14 CFR 91.821 - Civil supersonic airplanes: Noise limits.

    Code of Federal Regulations, 2013 CFR

    2013-01-01

    ... 14 Aeronautics and Space 2 2013-01-01 2013-01-01 false Civil supersonic airplanes: Noise limits... Noise Limits § 91.821 Civil supersonic airplanes: Noise limits. Except for Concorde airplanes having... airplane that does not comply with Stage 2 noise limits of part 36 in effect on October 13, 1977,...

  20. 14 CFR 91.821 - Civil supersonic airplanes: Noise limits.

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ... 14 Aeronautics and Space 2 2014-01-01 2014-01-01 false Civil supersonic airplanes: Noise limits... Noise Limits § 91.821 Civil supersonic airplanes: Noise limits. Except for Concorde airplanes having... airplane that does not comply with Stage 2 noise limits of part 36 in effect on October 13, 1977,...

  1. 14 CFR 91.821 - Civil supersonic airplanes: Noise limits.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... 14 Aeronautics and Space 2 2011-01-01 2011-01-01 false Civil supersonic airplanes: Noise limits... Noise Limits § 91.821 Civil supersonic airplanes: Noise limits. Except for Concorde airplanes having... airplane that does not comply with Stage 2 noise limits of part 36 in effect on October 13, 1977,...

  2. 14 CFR 91.853 - Final compliance: Civil subsonic airplanes.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... 14 Aeronautics and Space 2 2011-01-01 2011-01-01 false Final compliance: Civil subsonic airplanes... Noise Limits § 91.853 Final compliance: Civil subsonic airplanes. Except as provided in § 91.873, after... airplane subject to § 91.801(c) of this subpart, unless that airplane has been shown to comply with Stage...

  3. 14 CFR 91.821 - Civil supersonic airplanes: Noise limits.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... 14 Aeronautics and Space 2 2010-01-01 2010-01-01 false Civil supersonic airplanes: Noise limits... Noise Limits § 91.821 Civil supersonic airplanes: Noise limits. Except for Concorde airplanes having... airplane that does not comply with Stage 2 noise limits of part 36 in effect on October 13, 1977,...

  4. 14 CFR 125.75 - Airplane flight manual.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... 14 Aeronautics and Space 3 2011-01-01 2011-01-01 false Airplane flight manual. 125.75 Section 125... OPERATIONS: AIRPLANES HAVING A SEATING CAPACITY OF 20 OR MORE PASSENGERS OR A MAXIMUM PAYLOAD CAPACITY OF 6... Airplane flight manual. (a) Each certificate holder shall keep a current approved Airplane Flight Manual...

  5. 14 CFR 91.853 - Final compliance: Civil subsonic airplanes.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... 14 Aeronautics and Space 2 2010-01-01 2010-01-01 false Final compliance: Civil subsonic airplanes... Noise Limits § 91.853 Final compliance: Civil subsonic airplanes. Except as provided in § 91.873, after... airplane subject to § 91.801(c) of this subpart, unless that airplane has been shown to comply with Stage...

  6. 77 FR 2437 - Special Conditions: Gulfstream Aerospace Corporation, Model GVI Airplane; Rechargeable Lithium...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-01-18

    ... Administration 14 CFR Part 25 Special Conditions: Gulfstream Aerospace Corporation, Model GVI Airplane... conditions are issued for the Gulfstream Aerospace Corporation (GAC) Model GVI airplane. This airplane...

  7. Measured moments of inertia of 32 airplanes

    NASA Technical Reports Server (NTRS)

    Gracey, William

    1940-01-01

    A compilation of the experimentally determined moments of inertia of 32 airplanes is presented. The measurements were obtained at the laboratories of the naca by means of a pendulum method. The airplanes tested are representative of several types of aircraft of gross weight less than 10,000 pounds. The results are presented in coefficient as well as in dimensional form. An elementary analysis of the data disclosed the possibility of grouping the results according to wing type of the airplane, as low-wing monoplanes, parasol and high-wing monoplanes, and biplanes. The data are shown to provide a convenient means of rapidly estimating the moments of inertia of other airplanes. A three view drawing of each of the 32 airplanes is included.

  8. Optimal back-to-front airplane boarding.

    PubMed

    Bachmat, Eitan; Khachaturov, Vassilii; Kuperman, Ran

    2013-06-01

    The problem of finding an optimal back-to-front airplane boarding policy is explored, using a mathematical model that is related to the 1+1 polynuclear growth model with concave boundary conditions and to causal sets in gravity. We study all airplane configurations and boarding group sizes. Optimal boarding policies for various airplane configurations are presented. Detailed calculations are provided along with simulations that support the main conclusions of the theory. We show that the effectiveness of back-to-front policies undergoes a phase transition when passing from lightly congested airplanes to heavily congested airplanes. The phase transition also affects the nature of the optimal or near-optimal policies. Under what we consider to be realistic conditions, optimal back-to-front policies lead to a modest 8-12% improvement in boarding time over random (no policy) boarding, using two boarding groups. Having more than two groups is not effective.

  9. 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.

  10. Landing and Braking of Airplanes

    NASA Technical Reports Server (NTRS)

    Breguet, Louis

    1929-01-01

    In the numerical examples, we have considered an airplane landing in calm air in a fixed direction after crossing the border (with its obstacles) at a height of 30 m. Its stopping point is at a distance D from the obstacle, comprising: a distance D(sub 1) in regular gliding flight; a distance D(sub 2) in levelling off; a distance D(sub 3) in taxying on the ground. The calculations enable us to make out the following table, which gives an idea of the improvements to be expected in the use of various possible methods of braking in the air and on the ground.

  11. Airplane stroke syndrome.

    PubMed

    Humaidan, Hani; Yassi, Nawaf; Weir, Louise; Davis, Stephen M; Meretoja, Atte

    2016-07-01

    Only 37 cases of stroke during or soon after long-haul flights have been published to our knowledge. In this retrospective observational study, we searched the Royal Melbourne Hospital prospective stroke database and all discharge summaries from 1 September 2003 to 30 September 2014 for flight-related strokes, defined as patients presenting with stroke within 14days of air travel. We hypothesised that a patent foramen ovale (PFO) is an important, but not the only mechanism, of flight-related stroke. We describe the patient, stroke, and flight characteristics. Over the study period, 131 million passengers arrived at Melbourne airport. Our centre admitted 5727 stroke patients, of whom 42 (0.73%) had flight-related strokes. Flight-related stroke patients were younger (median age 65 versus 73, p<0.001), had similar stroke severity, and received intravenous thrombolysis more often than non-flight-related stroke patients. Seven patients had flight-related intracerebral haemorrhage. The aetiology of the ischaemic strokes was cardioembolic in 14/35 (40%), including seven patients with confirmed PFO, one with atrial septal defect, four with atrial fibrillation, one with endocarditis, and one with aortic arch atheroma. Paradoxical embolism was confirmed in six patients. Stroke related to air travel is a rare occurrence, less than one in a million. Although 20% of patients had a PFO, distribution of stroke aetiologies was diverse and was not limited to PFO and paradoxical embolism.

  12. Software Formal Inspections Guidebook

    NASA Technical Reports Server (NTRS)

    1993-01-01

    The Software Formal Inspections Guidebook is designed to support the inspection process of software developed by and for NASA. This document provides information on how to implement a recommended and proven method for conducting formal inspections of NASA software. This Guidebook is a companion document to NASA Standard 2202-93, Software Formal Inspections Standard, approved April 1993, which provides the rules, procedures, and specific requirements for conducting software formal inspections. Application of the Formal Inspections Standard is optional to NASA program or project management. In cases where program or project management decide to use the formal inspections method, this Guidebook provides additional information on how to establish and implement the process. The goal of the formal inspections process as documented in the above-mentioned Standard and this Guidebook is to provide a framework and model for an inspection process that will enable the detection and elimination of defects as early as possible in the software life cycle. An ancillary aspect of the formal inspection process incorporates the collection and analysis of inspection data to effect continual improvement in the inspection process and the quality of the software subjected to the process.

  13. Electronic Inspection of Beef

    NASA Technical Reports Server (NTRS)

    Anselmo, Victor J.; Gammell, Paul M.; Clark, Jerry

    1987-01-01

    Two proposed methods for grading beef quality based on inspection by electronic equipment: one method uses television camera to generate image of a cut of beef as customer sees it; other uses ultrasonics to inspect live animal or unsliced carcasses. Both methods show promise for automated meat inspection.

  14. Aging

    PubMed Central

    Park, Dong Choon

    2013-01-01

    Aging is initiated based on genetic and environmental factors that operate from the time of birth of organisms. Aging induces physiological phenomena such as reduction of cell counts, deterioration of tissue proteins, tissue atrophy, a decrease of the metabolic rate, reduction of body fluids, and calcium metabolism abnormalities, with final progression onto pathological aging. Despite the efforts from many researchers, the progression and the mechanisms of aging are not clearly understood yet. Therefore, the authors would like to introduce several theories which have gained attentions among the published theories up to date; genetic program theory, wear-and-tear theory, telomere theory, endocrine theory, DNA damage hypothesis, error catastrophe theory, the rate of living theory, mitochondrial theory, and free radical theory. Although there have been many studies that have tried to prevent aging and prolong life, here we introduce a couple of theories which have been proven more or less; food, exercise, and diet restriction. PMID:24653904

  15. Reliability assessment at airline inspection facilities. Volume 2: Protocol for an eddy current inspection reliability experiment

    NASA Astrophysics Data System (ADS)

    Spencer, Floyd; Borgonovi, Giancarlo; Roach, Dennis; Schurman, Don; Smith, Ron

    1993-05-01

    The Aging Aircraft NDI Development and Demonstration Center (AANC) at Sandia National Laboratories is charged by the FAA to support technology transfer, technology assessment, and technology validation. A key task facing the center is the establishment of a consistent and systematic methodology to assess the reliability of inspections through field experiments. This task is divided into three major areas: reliability of eddy current lap splice inspections at transport aircraft maintenance facilities; reliability of inspection at commuter aircraft maintenance facilities; and reliability of inspection associated with visual inspection of aircraft structural parts. Volume 2 is the second document in a series of three describing the planning, execution, and results of an eddy current inspection field experiment. This document provides a detailed description of the experimental hardware and protocols. It also describes the methodology to be used in the analysis of the data.

  16. 78 FR 15112 - Rulemaking Advisory Committee; Transport Airplane Performance and Handling Characteristics-New Task

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-03-08

    ... guidance material for airplane performance and handling characteristics in new transport category airplanes... associated guidance material for airworthiness certification of airplane designs. Recommendations may result... Federal Aviation Administration Aviation Rulemaking Advisory Committee; Transport Airplane Performance...

  17. 14 CFR 121.414 - Initial and transition training and checking requirements: flight instructors (airplane), flight...

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ....414 Aeronautics and Space FEDERAL AVIATION ADMINISTRATION, DEPARTMENT OF TRANSPORTATION (CONTINUED... training for flight instructors (airplane), flight engineer instructors (airplane), and flight navigator... instruction. (4) For flight engineer instructors (airplane) and flight navigator instructors (airplane),...

  18. 78 FR 21700 - Aviation Rulemaking Advisory Committee Meeting on Transport Airplane and Engine Issues

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-04-11

    ... and Minutes FAA Report ARAC Report Transport Canada Report EASA Report Flight Controls Harmonization Working Group Report Aging Airplanes Working Group Report Engine Harmonization Working Group--New Tasking Flight Test Harmonization Working Group--New Tasking Action Item Review and Other Business Attendance...

  19. Shuttle Laser Technology Experiment Facility (LTEF)-to-airplane lasercom experiment: Airplane considerations

    NASA Technical Reports Server (NTRS)

    Kalil, Ford

    1990-01-01

    NASA is considering the use of various airplanes for a Shuttle Laser Technology Experiment Facility (LTEF)-to-Airplane laser communications experiment. As supporting documentation, pertinent technical details are included about the potential use of airplanes located at Ames Research Center and Wallops Flight Facility. The effects and application of orbital mechanics considerations are also presented, including slant range, azimuth, elevation, and time. The pros and cons of an airplane equipped with a side port with a bubble window versus a top port with a dome are discussed.

  20. Software Formal Inspections Standard

    NASA Technical Reports Server (NTRS)

    1993-01-01

    This Software Formal Inspections Standard (hereinafter referred to as Standard) is applicable to NASA software. This Standard defines the requirements that shall be fulfilled by the software formal inspections process whenever this process is specified for NASA software. The objective of this Standard is to define the requirements for a process that inspects software products to detect and eliminate defects as early as possible in the software life cycle. The process also provides for the collection and analysis of inspection data to improve the inspection process as well as the quality of the software.

  1. 78 FR 53237 - Airworthiness Directives; Airbus Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-08-29

    ... AD 2013-05-08 incorrectly specify flight control secondary computers (FCSCs), rather than flight control primary computers (FCPCs). This document corrects those errors. In all other respects, the... airplane configuration, modifying three flight control primary computers (FCPCs); modifying two...

  2. New Albatross commercial airplane "L 58"

    NASA Technical Reports Server (NTRS)

    Meyer, G

    1923-01-01

    The "L 58" is a monoplane with cantilever wings joined directly to the fuselage. It accordingly belongs to the new school of airplane construction, as founded and developed in Germany. A list of performance characteristics is included.

  3. Precision controllability of the F-15 airplane

    NASA Technical Reports Server (NTRS)

    Sisk, T. R.; Matheny, N. W.

    1979-01-01

    A flying qualities evaluation conducted on a preproduction F-15 airplane permitted an assessment to be made of its precision controllability in the high subsonic and low transonic flight regime over the allowable angle of attack range. Precision controllability, or gunsight tracking, studies were conducted in windup turn maneuvers with the gunsight in the caged pipper mode and depressed 70 mils. This evaluation showed the F-15 airplane to experience severe buffet and mild-to-moderate wing rock at the higher angles of attack. It showed the F-15 airplane radial tracking precision to vary from approximately 6 to 20 mils over the load factor range tested. Tracking in the presence of wing rock essentially doubled the radial tracking error generated at the lower angles of attack. The stability augmentation system affected the tracking precision of the F-15 airplane more than it did that of previous aircraft studied.

  4. 78 FR 46306 - Airworthiness Directives; Airbus Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-07-31

    ... system reviews conducted by the airplane manufacturer. This proposed AD would require removing bulb type... AD requires removal of bulb type maintenance lights for all aeroplanes, installation of the...

  5. Notes on New French Commercial Airplanes

    NASA Technical Reports Server (NTRS)

    1935-01-01

    This document discusses the types of commercial planes ordered by Air France. Characteristics of the Wibault 670, the Dewoitine D.620, Bloch 300, and the Potez 620 airplanes are included. Pictures and diagrams of these aircraft are also included.

  6. 78 FR 22432 - Airworthiness Directives; Airbus Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-04-16

    ... provide appropriate operational procedures to prevent the airplane flight directors (FDs), autopilot (AP... computers (FCPCs) are necessary to inhibit autopilot re-engagement under unreliable airspeed conditions... this AD to prevent autopilot engagement under unreliable airspeed conditions, which could result...

  7. The Kiln Drying of Wood for Airplanes

    NASA Technical Reports Server (NTRS)

    Tiemann, Harry D

    1919-01-01

    This report is descriptive of various methods used in the kiln drying of woods for airplanes and gives the results of physical tests on different types of woods after being dried by the various kiln-drying methods.

  8. Development of light and small airplanes

    NASA Technical Reports Server (NTRS)

    Lachmann, G

    1926-01-01

    The author has endeavored to select only the most important lines of development and has limited the description of individual airplanes to a few typical examples. Comparisons are presented between German and foreign accomplishments.

  9. Control of airplanes at low speeds

    NASA Technical Reports Server (NTRS)

    Wood, R Mckinnon

    1923-01-01

    Loss of control over the orientation of an airplane as the incidence approaches and enters the region of stalled flight is a prolific cause of serious accidents. This report discusses methods of landing at slow speeds approaching stall.

  10. Fire prevention on airplanes. Part I

    NASA Technical Reports Server (NTRS)

    Sabatier, J

    1929-01-01

    Various methods for preventing fires in airplanes are presented with most efforts centering around prevention of backfires, new engine and carburetor designs, as well as investigations on different types of fuels.

  11. A study of commuter airplane design optimization

    NASA Technical Reports Server (NTRS)

    Roskam, J.; Wyatt, R. D.; Griswold, D. A.; Hammer, J. L.

    1977-01-01

    Problems of commuter airplane configuration design were studied to affect a minimization of direct operating costs. Factors considered were the minimization of fuselage drag, methods of wing design, and the estimated drag of an airplane submerged in a propellor slipstream; all design criteria were studied under a set of fixed performance, mission, and stability constraints. Configuration design data were assembled for application by a computerized design methodology program similar to the NASA-Ames General Aviation Synthesis Program.

  12. 77 FR 10691 - Airworthiness Directives; Airbus Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-02-23

    ... Operators Telex A330-52A3084, dated December 20, 2010 (for Model A330-200 and A330-300 series airplanes); All Operators Telex A330-52A3085, dated December 20, 2010 (for Model A330-200 and A330-300 series airplanes); All Operators Telex A340-52A4091, dated December 20, 2010 (for Model A340-200 and...

  13. Factors of airplane engine performance

    NASA Technical Reports Server (NTRS)

    Gage, Victor R

    1921-01-01

    This report is based upon an analysis of a large number of airplane-engine tests. It contains the results of a search for fundamental relations between many variables of engine operation. The data used came from over 100 groups of tests made upon several engines, primarily for military information. The types of engines were the Liberty 12 and three models of the Hispano-Suiza. The tests were made in the altitude chamber, where conditions simulated altitudes up to about 30,000 feet, with engine speeds ranging from 1,200 to 2,200 r.p.m. The compression ratios of the different engines ranged from under 5 to over 8 to 1. The data taken on the tests were exceptionally complete, including variations of pressure and temperature, besides the brake and friction torques, rates of fuel and air consumption, the jacket and exhaust heat losses.

  14. 77 FR 51717 - Airworthiness Directives; Airbus Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-08-27

    ... fitting at FR 40 without nut removal, and a one-time eddy current or liquid penetrant inspection of the... removal), accomplishment of a one time Eddy Current ] (EC) inspection or liquid penetrant inspection of... intervals not to exceed 300 flight cycles. (j) New Requirement: Eddy Current Inspection or Liquid...

  15. Optical fiber inspection system

    DOEpatents

    Moore, F.W.

    1985-04-05

    A remote optical inspection system including an inspection head. The inspection head has a passageway through which pellets or other objects are passed. A window is provided along the passageway through which light is beamed against the objects being inspected. A plurality of lens assemblies are arranged about the window so that reflected light can be gathered and transferred to a plurality of coherent optical fiber light guides. The light guides transfer the light images to a television or other image transducer which converts the optical images into a representative electronic signal. The electronic signal can then be displayed on a signal viewer such as a television monitor for inspection by a person. A staging means can be used to support the objects for viewing through the window. Routing means can be used to direct inspected objects into appropriate exit passages for accepted or rejected objects. The inspected objects are advantageously fed in a singular manner to the staging means and routing means. The inspection system is advantageously used in an enclosure when toxic or hazardous materials are being inspected. 10 figs.

  16. Optical fiber inspection system

    DOEpatents

    Moore, Francis W.

    1987-01-01

    A remote optical inspection system including an inspection head. The inspection head has a passageway through which pellets or other objects are passed. A window is provided along the passageway through which light is beamed against the objects being inspected. A plurality of lens assemblies are arranged about the window so that reflected light can be gathered and transferred to a plurality of coherent optical fiber light guides. The light guides transfer the light images to a television or other image transducer which converts the optical images into a representative electronic signal. The electronic signal can then be displayed on a signal viewer such as a television monitor for inspection by a person. A staging means can be used to support the objects for viewing through the window. Routing means can be used to direct inspected objects into appropriate exit passages for accepted or rejected objects. The inspected objects are advantageously fed in a singular manner to the staging means and routing means. The inspection system is advantageously used in an enclosure when toxic or hazardous materials are being inspected.

  17. 78 FR 67018 - Airworthiness Directives; Embraer S.A. Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-11-08

    ... receipt. FOR FURTHER INFORMATION CONTACT: Jim Rutherford, Aerospace Engineer, FAA, Small Airplane...; email: jim.rutherford@faa.gov . SUPPLEMENTARY INFORMATION: Discussion The Agencia Nacional De Aviacoa.... Send information to ATTN: Jim Rutherford, Aerospace Engineer, FAA, Small Airplane Directorate,...

  18. 78 FR 41882 - Airworthiness Directives; Dassault Aviation Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-07-12

    ... Federal Aviation Administration 14 CFR Part 39 RIN 2120-AA64 Airworthiness Directives; Dassault Aviation Airplanes AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Notice of proposed rulemaking (NPRM... Aviation Model Falcon 2000 series airplanes. That AD currently requires repetitive operational...

  19. 14 CFR 121.159 - Single-engine airplanes prohibited.

    Code of Federal Regulations, 2013 CFR

    2013-01-01

    ... 14 Aeronautics and Space 3 2013-01-01 2013-01-01 false Single-engine airplanes prohibited. 121.159... REQUIREMENTS: DOMESTIC, FLAG, AND SUPPLEMENTAL OPERATIONS Aircraft Requirements § 121.159 Single-engine airplanes prohibited. No certificate holder may operate a single-engine airplane under this part....

  20. 14 CFR 121.159 - Single-engine airplanes prohibited.

    Code of Federal Regulations, 2012 CFR

    2012-01-01

    ... 14 Aeronautics and Space 3 2012-01-01 2012-01-01 false Single-engine airplanes prohibited. 121.159... REQUIREMENTS: DOMESTIC, FLAG, AND SUPPLEMENTAL OPERATIONS Aircraft Requirements § 121.159 Single-engine airplanes prohibited. No certificate holder may operate a single-engine airplane under this part....

  1. 77 FR 10352 - Airworthiness Directives; Various Transport Category Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-02-22

    ... Category Airplanes AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Final rule. SUMMARY: We are revising an existing airworthiness directive (AD) for transport category airplanes that have one or more...; establishment of a procedure to announce to airplane occupants that smoking is prohibited in the...

  2. 78 FR 72836 - Airworthiness Directives; The Boeing Company Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-12-04

    ... Airplanes AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Notice of proposed rulemaking (NPRM... airplanes. This proposed AD was prompted by multiple reports of cracking in the overwing frames. This... adjacent structure and consequent loss of structural integrity of the airplane. DATES: We must...

  3. 77 FR 21420 - Airworthiness Directives; Cessna Aircraft Company Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-04-10

    ... Company Airplanes AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Final rule. SUMMARY: We are adopting a new airworthiness directive (AD) for certain Cessna Aircraft Company Model 680 airplanes. This...-feed wiring, and revising the airplane flight manual to include procedures to use when the left...

  4. 78 FR 55662 - Airworthiness Directives; the Boeing Company Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-09-11

    ... Airplanes AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Notice of proposed rulemaking (NPRM...-10, DC-9-30, and DC-9-40 series airplanes. This proposed AD was prompted by an evaluation by the... integrity of the airplane. DATES: We must receive comments on this proposed AD by October 28,...

  5. 78 FR 78703 - Airworthiness Directives; The Boeing Company Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-12-27

    ... Airplanes AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Final rule. SUMMARY: We are adopting a... series airplanes. This AD was prompted by an evaluation by the design approval holder (DAH) indicating... bulkhead, which could result in reduced structural integrity of the airplane. DATES: This AD is...

  6. 77 FR 21429 - Airworthiness Directives; The Boeing Company Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-04-10

    ... Airplanes AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Final rule. SUMMARY: We are adopting a new airworthiness directive (AD) for certain The Boeing Company Model 777 airplanes. This AD was... these airplanes. DATES: This AD is effective May 15, 2012. The Director of the Federal Register...

  7. 76 FR 53308 - Airworthiness Directives; Cessna Aircraft Company Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-08-26

    ... Company Airplanes AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Final rule; request for... airplanes. That AD currently requires either installing a placard prohibiting spins and other acrobatic maneuvers in the airplane or replacing the rudder stop, the rudder stop bumper, and the attachment...

  8. 75 FR 61657 - Airworthiness Directives; Transport Category Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-10-06

    ... Airplanes AGENCY: Federal Aviation Administration (FAA), Department of Transportation (DOT). ACTION: Notice... directive (AD) that applies to transport category airplanes that have one or more lavatories equipped with...; establishment of a procedure to announce to airplane occupants that smoking is prohibited in the...

  9. 77 FR 46343 - Airworthiness Directives; The Boeing Company Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-08-03

    ... Airplanes AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Notice of proposed rulemaking (NPRM...-400D, 747-400F, 747SR, and 747SP series airplanes; and certain Model 757-200, -200PF, and -300 series airplanes. The existing AD currently requires replacing the control switches of the forward, aft, and...

  10. 14 CFR 21.5 - Airplane or Rotorcraft Flight Manual.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... furnished in an Airplane or Rotorcraft Flight Manual or in manual material, markings, and placards, by the... 14 Aeronautics and Space 1 2011-01-01 2011-01-01 false Airplane or Rotorcraft Flight Manual. 21.5... CERTIFICATION PROCEDURES FOR PRODUCTS AND PARTS General § 21.5 Airplane or Rotorcraft Flight Manual. Link to...

  11. 14 CFR 121.141 - Airplane flight manual.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... 14 Aeronautics and Space 3 2011-01-01 2011-01-01 false Airplane flight manual. 121.141 Section 121... REQUIREMENTS: DOMESTIC, FLAG, AND SUPPLEMENTAL OPERATIONS Manual Requirements § 121.141 Airplane flight manual. (a) Each certificate holder shall keep a current approved airplane flight manual for each type...

  12. 14 CFR 121.303 - Airplane instruments and equipment.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... 14 Aeronautics and Space 3 2011-01-01 2011-01-01 false Airplane instruments and equipment. 121.303... Airplane instruments and equipment. (a) Unless otherwise specified, the instrument and equipment... airspeed limitation and item of related information in the Airplane Flight Manual and pertinent...

  13. 14 CFR 121.503 - Flight time limitations: Pilots: airplanes.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... 14 Aeronautics and Space 3 2011-01-01 2011-01-01 false Flight time limitations: Pilots: airplanes... Operations § 121.503 Flight time limitations: Pilots: airplanes. (a) A certificate holder conducting supplemental operations may schedule a pilot to fly in an airplane for eight hours or less during any...

  14. 14 CFR 121.503 - Flight time limitations: Pilots: airplanes.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... 14 Aeronautics and Space 3 2010-01-01 2010-01-01 false Flight time limitations: Pilots: airplanes... Operations § 121.503 Flight time limitations: Pilots: airplanes. (a) A certificate holder conducting supplemental operations may schedule a pilot to fly in an airplane for eight hours or less during any...

  15. 14 CFR 125.205 - Equipment requirements: Airplanes under IFR.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... 14 Aeronautics and Space 3 2011-01-01 2011-01-01 false Equipment requirements: Airplanes under IFR... CERTIFICATION AND OPERATIONS: AIRPLANES HAVING A SEATING CAPACITY OF 20 OR MORE PASSENGERS OR A MAXIMUM PAYLOAD... Equipment Requirements § 125.205 Equipment requirements: Airplanes under IFR. No person may operate...

  16. 14 CFR 125.91 - Airplane requirements: General.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... 14 Aeronautics and Space 3 2011-01-01 2011-01-01 false Airplane requirements: General. 125.91... AND OPERATIONS: AIRPLANES HAVING A SEATING CAPACITY OF 20 OR MORE PASSENGERS OR A MAXIMUM PAYLOAD CAPACITY OF 6,000 POUNDS OR MORE; AND RULES GOVERNING PERSONS ON BOARD SUCH AIRCRAFT Airplane...

  17. 14 CFR 121.570 - Airplane evacuation capability.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... 14 Aeronautics and Space 3 2011-01-01 2011-01-01 false Airplane evacuation capability. 121.570... REQUIREMENTS: DOMESTIC, FLAG, AND SUPPLEMENTAL OPERATIONS Flight Operations § 121.570 Airplane evacuation capability. (a) No person may cause an airplane carrying passengers to be moved on the surface, take off,...

  18. 14 CFR 121.199 - Nontransport category airplanes: Takeoff limitations.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... 14 Aeronautics and Space 3 2010-01-01 2010-01-01 false Nontransport category airplanes: Takeoff... OPERATING REQUIREMENTS: DOMESTIC, FLAG, AND SUPPLEMENTAL OPERATIONS Airplane Performance Operating Limitations § 121.199 Nontransport category airplanes: Takeoff limitations. (a) No person operating...

  19. 14 CFR 121.570 - Airplane evacuation capability.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... 14 Aeronautics and Space 3 2010-01-01 2010-01-01 false Airplane evacuation capability. 121.570... REQUIREMENTS: DOMESTIC, FLAG, AND SUPPLEMENTAL OPERATIONS Flight Operations § 121.570 Airplane evacuation capability. (a) No person may cause an airplane carrying passengers to be moved on the surface, take off,...

  20. 14 CFR 61.159 - Aeronautical experience: Airplane category rating.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... 14 Aeronautics and Space 2 2011-01-01 2011-01-01 false Aeronautical experience: Airplane category... Transport Pilots § 61.159 Aeronautical experience: Airplane category rating. (a) Except as provided in... certificate with an airplane category and class rating must have at least 1,500 hours of total time as a...

  1. 14 CFR 125.91 - Airplane requirements: General.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... 14 Aeronautics and Space 3 2010-01-01 2010-01-01 false Airplane requirements: General. 125.91... AND OPERATIONS: AIRPLANES HAVING A SEATING CAPACITY OF 20 OR MORE PASSENGERS OR A MAXIMUM PAYLOAD CAPACITY OF 6,000 POUNDS OR MORE; AND RULES GOVERNING PERSONS ON BOARD SUCH AIRCRAFT Airplane...

  2. 14 CFR 125.205 - Equipment requirements: Airplanes under IFR.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... 14 Aeronautics and Space 3 2010-01-01 2010-01-01 false Equipment requirements: Airplanes under IFR... CERTIFICATION AND OPERATIONS: AIRPLANES HAVING A SEATING CAPACITY OF 20 OR MORE PASSENGERS OR A MAXIMUM PAYLOAD... Equipment Requirements § 125.205 Equipment requirements: Airplanes under IFR. No person may operate...

  3. 14 CFR 23.1437 - Accessories for multiengine airplanes.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... 14 Aeronautics and Space 1 2011-01-01 2011-01-01 false Accessories for multiengine airplanes. 23... TRANSPORTATION AIRCRAFT AIRWORTHINESS STANDARDS: NORMAL, UTILITY, ACROBATIC, AND COMMUTER CATEGORY AIRPLANES Equipment Miscellaneous Equipment § 23.1437 Accessories for multiengine airplanes. For multiengine...

  4. 14 CFR 121.303 - Airplane instruments and equipment.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... 14 Aeronautics and Space 3 2010-01-01 2010-01-01 false Airplane instruments and equipment. 121.303... Airplane instruments and equipment. (a) Unless otherwise specified, the instrument and equipment... airspeed limitation and item of related information in the Airplane Flight Manual and pertinent...

  5. 14 CFR 121.199 - Nontransport category airplanes: Takeoff limitations.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... 14 Aeronautics and Space 3 2011-01-01 2011-01-01 false Nontransport category airplanes: Takeoff... OPERATING REQUIREMENTS: DOMESTIC, FLAG, AND SUPPLEMENTAL OPERATIONS Airplane Performance Operating Limitations § 121.199 Nontransport category airplanes: Takeoff limitations. (a) No person operating...

  6. 14 CFR 23.1437 - Accessories for multiengine airplanes.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... 14 Aeronautics and Space 1 2010-01-01 2010-01-01 false Accessories for multiengine airplanes. 23... TRANSPORTATION AIRCRAFT AIRWORTHINESS STANDARDS: NORMAL, UTILITY, ACROBATIC, AND COMMUTER CATEGORY AIRPLANES Equipment Miscellaneous Equipment § 23.1437 Accessories for multiengine airplanes. For multiengine...

  7. 14 CFR 121.159 - Single-engine airplanes prohibited.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... 14 Aeronautics and Space 3 2010-01-01 2010-01-01 false Single-engine airplanes prohibited. 121.159... REQUIREMENTS: DOMESTIC, FLAG, AND SUPPLEMENTAL OPERATIONS Aircraft Requirements § 121.159 Single-engine airplanes prohibited. No certificate holder may operate a single-engine airplane under this part....

  8. 14 CFR 121.159 - Single-engine airplanes prohibited.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... 14 Aeronautics and Space 3 2011-01-01 2011-01-01 false Single-engine airplanes prohibited. 121.159... REQUIREMENTS: DOMESTIC, FLAG, AND SUPPLEMENTAL OPERATIONS Aircraft Requirements § 121.159 Single-engine airplanes prohibited. No certificate holder may operate a single-engine airplane under this part....

  9. 77 FR 58787 - Airworthiness Directives; Bombardier, Inc. Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-09-24

    ... Bombardier, Inc. Model CL-600-2C10 (Regional Jet Series 700, 701, & 702) airplanes, Model CL-600-2D15 (Regional Jet Series 705) airplanes, and Model CL-600-2D24 (Regional Jet Series 900) airplanes. The existing... would expand the applicability by adding Model CL-600- 2C10 (Regional Jet Series 700, 701, &...

  10. 78 FR 78292 - Airworthiness Directives; Dassault Aviation Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-12-26

    ... Federal Aviation Administration 14 CFR Part 39 RIN 2120-AA64 Airworthiness Directives; Dassault Aviation Airplanes AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Notice of proposed rulemaking (NPRM... Aviation Model FALCON 7X airplanes. AD 2011-13-07 requires revising the airplane flight manual (AFM)...

  11. 78 FR 24673 - Airworthiness Directives; The Boeing Company Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-04-26

    ... unsafe condition for in-service airplanes. For all future delivered airplanes, the replacement batteries... airplanes. That AD currently requires modification of the battery system, or other actions. This AD requires installing main and auxiliary power unit (APU) battery enclosures and environmental control system...

  12. 14 CFR 121.141 - Airplane flight manual.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... 14 Aeronautics and Space 3 2010-01-01 2010-01-01 false Airplane flight manual. 121.141 Section 121... REQUIREMENTS: DOMESTIC, FLAG, AND SUPPLEMENTAL OPERATIONS Manual Requirements § 121.141 Airplane flight manual. (a) Each certificate holder shall keep a current approved airplane flight manual for each type...

  13. 14 CFR 125.75 - Airplane flight manual.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... 14 Aeronautics and Space 3 2010-01-01 2010-01-01 false Airplane flight manual. 125.75 Section 125...,000 POUNDS OR MORE; AND RULES GOVERNING PERSONS ON BOARD SUCH AIRCRAFT Manual Requirements § 125.75 Airplane flight manual. (a) Each certificate holder shall keep a current approved Airplane Flight Manual...

  14. 77 FR 13193 - Airworthiness Directives; Bombardier, Inc. Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-03-06

    .... Airplanes AGENCY: Federal Aviation Administration (FAA), Department of Transportation (DOT). ACTION: Final... From the Federal Register Online via the Government Publishing Office DEPARTMENT OF TRANSPORTATION..., and -106 airplanes and Model DHC-8-200, -300, and -400 series airplanes. This AD was prompted...

  15. 76 FR 69161 - Airworthiness Directives; Bombardier, Inc. Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-11-08

    ... From the Federal Register Online via the Government Publishing Office DEPARTMENT OF TRANSPORTATION.... Airplanes AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Notice of proposed rulemaking (NPRM... (Regional Jet Series 700, 701, & 702) airplanes; Model CL-600-2D15 (Regional Jet Series 705) airplanes;...

  16. 76 FR 71470 - Airworthiness Directives; Bombardier, Inc. Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-11-18

    ...; ] DEPARTMENT OF TRANSPORTATION Federal Aviation Administration 14 CFR Part 39 RIN 2120-AA64 Airworthiness Directives; Bombardier, Inc. Airplanes AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Notice of...-102, -103, and -106 airplanes and Model DHC-8-200, -300, and -400 series airplanes. This proposed...

  17. 14 CFR 125.407 - Maintenance log: Airplanes.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... 14 Aeronautics and Space 3 2011-01-01 2011-01-01 false Maintenance log: Airplanes. 125.407 Section... Maintenance log: Airplanes. (a) Each person who takes corrective action or defers action concerning a reported... record the action taken in the airplane maintenance log in accordance with part 43 of this chapter....

  18. 14 CFR 125.407 - Maintenance log: Airplanes.

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ... 14 Aeronautics and Space 3 2014-01-01 2014-01-01 false Maintenance log: Airplanes. 125.407 Section... Maintenance log: Airplanes. (a) Each person who takes corrective action or defers action concerning a reported... record the action taken in the airplane maintenance log in accordance with part 43 of this chapter....

  19. 14 CFR 125.407 - Maintenance log: Airplanes.

    Code of Federal Regulations, 2012 CFR

    2012-01-01

    ... 14 Aeronautics and Space 3 2012-01-01 2012-01-01 false Maintenance log: Airplanes. 125.407 Section... Maintenance log: Airplanes. (a) Each person who takes corrective action or defers action concerning a reported... record the action taken in the airplane maintenance log in accordance with part 43 of this chapter....

  20. 14 CFR 125.407 - Maintenance log: Airplanes.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... 14 Aeronautics and Space 3 2010-01-01 2010-01-01 false Maintenance log: Airplanes. 125.407 Section... Maintenance log: Airplanes. (a) Each person who takes corrective action or defers action concerning a reported... record the action taken in the airplane maintenance log in accordance with part 43 of this chapter....

  1. 14 CFR 125.407 - Maintenance log: Airplanes.

    Code of Federal Regulations, 2013 CFR

    2013-01-01

    ... 14 Aeronautics and Space 3 2013-01-01 2013-01-01 false Maintenance log: Airplanes. 125.407 Section... Maintenance log: Airplanes. (a) Each person who takes corrective action or defers action concerning a reported... record the action taken in the airplane maintenance log in accordance with part 43 of this chapter....

  2. Quantifying and scaling airplane performance in turbulence

    NASA Astrophysics Data System (ADS)

    Richardson, Johnhenri R.

    This dissertation studies the effects of turbulent wind on airplane airspeed and normal load factor, determining how these effects scale with airplane size and developing envelopes to account for them. The results have applications in design and control of aircraft, especially small scale aircraft, for robustness with respect to turbulence. Using linearized airplane dynamics and the Dryden gust model, this dissertation presents analytical and numerical scaling laws for airplane performance in gusts, safety margins that guarantee, with specified probability, that steady flight can be maintained when stochastic wind gusts act upon an airplane, and envelopes to visualize these safety margins. Presented here for the first time are scaling laws for the phugoid natural frequency, phugoid damping ratio, airspeed variance in turbulence, and flight path angle variance in turbulence. The results show that small aircraft are more susceptible to high frequency gusts, that the phugoid damping ratio does not depend directly on airplane size, that the airspeed and flight path angle variances can be parameterized by the ratio of the phugoid natural frequency to a characteristic turbulence frequency, and that the coefficient of variation of the airspeed decreases with increasing airplane size. Accompanying numerical examples validate the results using eleven different airplanes models, focusing on NASA's hypothetical Boeing 757 analog the Generic Transport Model and its operational 5.5% scale model, the NASA T2. Also presented here for the first time are stationary flight, where the flight state is a stationary random process, and the stationary flight envelope, an adjusted steady flight envelope to visualize safety margins for stationary flight. The dissertation shows that driving the linearized airplane equations of motion with stationary, stochastic gusts results in stationary flight. It also shows how feedback control can enlarge the stationary flight envelope by alleviating

  3. Airplane takeoff and landing performance monitoring system

    NASA Technical Reports Server (NTRS)

    Middleton, David B. (Inventor); Srivatsan, Raghavachari (Inventor); Person, Lee H., Jr. (Inventor)

    1994-01-01

    The invention is a real-time takeoff and landing performance monitoring system for an aircraft which provides a pilot with graphic and metric information to assist in decisions related to achieving rotation speed (VR) within the safe zone of a runway, or stopping the aircraft on the runway after landing or take-off abort. The system processes information in two segments: a pretakeoff segment and a real-time segment. One-time inputs of ambient conditions and airplane configuration information are used in the pretakeoff segment to generate scheduled performance data. The real-time segment uses the scheduled performance data, runway length data and transducer measured parameters to monitor the performance of the airplane throughout the takeoff roll. Airplane acceleration and engine-performance anomalies are detected and annunciated. A novel and important feature of this segment is that it updates the estimated runway rolling friction coefficient. Airplane performance predictions also reflect changes in head wind occurring as the takeoff roll progresses. The system provides a head-down display and a head-up display. The head-up display is projected onto a partially reflective transparent surface through which the pilot views the runway. By comparing the present performance of the airplane with a continually predicted nominal performance based upon given conditions, performance deficiencies are detected by the system and conveyed to pilot in form of both elemental information and integrated information.

  4. Precision controllability of the YF-17 airplane

    NASA Technical Reports Server (NTRS)

    Sisk, T. R.; Mataeny, N. W.

    1980-01-01

    A flying qualities evaluation conducted on the YF-17 airplane permitted assessment of its precision controllability in the transonic flight regime over the allowable angle of attack range. The precision controllability (tailchase tracking) study was conducted in constant-g and windup turn tracking maneuvers with the command augmentation system (CAS) on, automatic maneuver flaps, and the caged pipper gunsight depressed 70 mils. This study showed that the YF-17 airplane tracks essentially as well at 7 g's to 8 g's as earlier fighters did at 4 g's to 5 g's before they encountered wing rock. The pilots considered the YF-17 airplane one of the best tracking airplanes they had flown. Wing rock at the higher angles of attack degraded tracking precision, and lack of control harmony made precision controllability more difficult. The revised automatic maneuver flap schedule incorporated in the airplane at the time of the tests did not appear to be optimum. The largest tracking errors and greatest pilot workload occurred at high normal load factors at low angles of attack. The pilots reported that the high-g maneuvers caused some tunnel vision and that they found it difficult to think clearly after repeated maneuvers.

  5. Airplane takeoff and landing performance monitoring system

    NASA Technical Reports Server (NTRS)

    Middleton, David B. (Inventor); Srivatsan, Raghavachari (Inventor); Person, Jr., Lee H. (Inventor)

    1991-01-01

    The invention is a real-time takeoff and landing performance monitoring system for an aircraft which provides a pilot with graphic and metric information to assist in decisions related to achieving rotation speed (V.sub.R) within the safe zone of a runway, or stopping the aircraft on the runway after landing or take-off abort. The system processes information in two segments: a pretakeoff segment and a real-time segment. One-time inputs of ambient conditions and airplane configuration information are used in the pretakeoff segment to generate scheduled performance data. The real-time segment uses the scheduled performance data, runway length data and transducer measured parameters to monitor the performance of the airplane throughout the takeoff roll. Airplane and engine performance deficiencies are detected and annunciated. A novel and important feature of this segment is that it updates the estimated runway rolling friction coefficient. Airplane performance predictions also reflect changes in head wind occurring as the takeoff roll progresses. The system provides a head-down display and a head-up display. The head-up display is projected onto a partially reflective transparent surface through which the pilot views the runway. By comparing the present performance of the airplane with a predicted nominal performance based upon given conditions, performance deficiencies are detected by the system.

  6. Fire Prevention Inspection Procedures.

    ERIC Educational Resources Information Center

    Pribyl, Paul F.

    Lesson plans are provided for a fire prevention inspection course of the Wisconsin Fire Service Training program. Objectives for the course are to enable students to describe and conduct fire prevention inspections, to identify and correct hazards common to most occupancies, to understand the types of building construction and occupancy, and to…

  7. Statical longitudinal stability of airplanes

    NASA Technical Reports Server (NTRS)

    Warner, Edward P

    1921-01-01

    This report, which is a continuation of the "Preliminary report on free flight testing" (report no. NACA-TR-70), presents a detailed theoretical analysis of statical stability with free and locked controls and also the results of many free flight test on several types of airplanes. In developing the theory of stability with locked controls an expression for pitching moment is derived in simple terms by considering the total moment as the sum of the moments due to wings and tail surface. This expression, when differentiated with respect to angle of incidence, enables an analysis to be made of the factors contributing to the pitching moment. The effects of slipstream and down wash are also considered and it is concluded that the C. G. Location has but slight effect or stability, and that stability is much improved by increasing the efficiency of the tail surfaces, which may be done by using an "inverted" tail plane. The results of free flight tests with locked controls are discussed at length and it is shown that the agreement between the experimental results and theory is very satisfactory. The theory of stability with free controls is not amendable to the simple mathematical treatment used in the case of locked controls, but a clear statement of the conditions enables several conclusions to be drawn, one of which is that the fixed tail surfaces should be much larger than the movable surfaces.

  8. Practical stability and controllability of airplanes

    NASA Technical Reports Server (NTRS)

    Norton, F H

    1923-01-01

    The effect of the characteristics of an airplane on balance, stability, and controllability, based on free flight tests, is discussed particularly in respect to the longitudinal motion. It is shown that the amount of longitudinal stability can be varied by changing the position of the center of gravity or by varying the aspect ratio of the tail plane, and that the stability for any particular air speed can be varied by changing the camber of the tail plane. It is found that complete longitudinal stability may be obtained even when the tail plane is at all times a lifting surface. Empirical values are given for the characteristics of a new airplane for producing any desired amount of stability and control, or to correct the faults of an airplane already constructed. (author)

  9. Analytic prediction of airplane equilibrium spin characteristics

    NASA Technical Reports Server (NTRS)

    Adams, W. M., Jr.

    1972-01-01

    The nonlinear equations of motion are solved algebraically for conditions for which an airplane is in an equilibrium spin. Constrained minimization techniques are employed in obtaining the solution. Linear characteristics of the airplane about the equilibrium points are also presented and their significance in identifying the stability characteristics of the equilibrium points is discussed. Computer time requirements are small making the method appear potentially applicable in airplane design. Results are obtained for several configurations and are compared with other analytic-numerical methods employed in spin prediction. Correlation with experimental results is discussed for one configuration for which a rather extensive data base was available. A need is indicated for higher Reynolds number data taken under conditions which more accurately simulate a spin.

  10. The Development of German Army Airplanes During the War

    NASA Technical Reports Server (NTRS)

    Wilhelm, Hoff

    1921-01-01

    The author, who was a captain of the Reserves in the Technical Department of the Aviation Division (Board of Airplane Experts) during the war, shows what means were taken for the creation of new airplane types and what tests were employed for trying out their flying properties, capacities and structural reliability. The principal representative types of each of the classes of airplanes are described and the characteristics of the important structural parts are discussed. Data regarding the number of airplanes at the front and the flying efficiency of the various classes of airplanes are given.

  11. Stresses Produced in Airplane Wings by Gusts

    NASA Technical Reports Server (NTRS)

    Kussner, Hans Georg

    1932-01-01

    Accurate prediction of gust stress being out of the question because of the multiplicity of the free air movements, the exploration of gust stress is restricted to static method which must be based upon: 1) stress measurements in free flight; 2) check of design specifications of approved type airplanes. With these empirical data the stress must be compared which can be computed for a gust of known intensity and structure. This "maximum gust" then must be so defined as to cover the whole ambit of empiricism and thus serve as prediction for new airplane designs.

  12. 78 FR 37437 - Airworthiness Directives; Airbus Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-06-21

    ... or in person at the U.S. Department of Transportation, Docket Operations, M-30, West Building Ground... requires: --a local ultrasonic inspection for reinforced area instead of the local thermography inspection... this thermography inspection has been performed in the reinforced area, and --additional...

  13. 78 FR 65173 - Airworthiness Directives; Airbus Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-10-31

    ... incorrectly manufactured. This AD requires an inspection of the left-hand (LH) and right-hand (RH) bearing... one- time detailed visual inspection of the left-hand (LH) and right-hand (RH) MLG retraction jack... this AD, whichever occurs later: Do a detailed inspection of the left-hand (LH) and right-hand...

  14. 77 FR 60655 - Airworthiness Directives; Airbus Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-10-04

    ... sufficient to mitigate the unsafe condition. This proposed AD would require repetitive eddy current... inspections, Airbus validated an Eddy current Non-Destructive Test (NDT) inspection to replace the detailed... repetitive Eddy-current NDT inspections for cracks in the affected areas of the keel beam side panel...

  15. 77 FR 75833 - Airworthiness Directives; Airbus Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-12-26

    ...-time eddy current or liquid penetrant inspection of the forward fitting at FR 40 with nut removal, and... forward fitting (without nut removal), accomplishment of a one time Eddy Current (EC) inspection or liquid... intervals not to exceed 300 flight cycles. (j) New Requirement: Eddy Current Inspection or Liquid...

  16. Solar-powered airplanes: A historical perspective and future challenges

    NASA Astrophysics Data System (ADS)

    Zhu, Xiongfeng; Guo, Zheng; Hou, Zhongxi

    2014-11-01

    Solar-powered airplanes are studied in this research. A solar-powered airplane consumes solar energy instead of traditional fossil fuels; thus it has received a significant amount of interest from researchers and the public alike. The historical development of solar-powered airplanes is reviewed. Notable prototypes, particularly those sponsored by the government, are introduced in detail. Possible future applications of solar-powered airplanes in the civilian and military fields are proposed. Finally, the challenges being faced by solar-powered airplanes are discussed. This study proposes that the solar-powered airplanes are potential alternatives to some present technologies and that they complement current satellites, traditional airplanes, airships, and balloons. However, these planes require further development and enormous technical obstacles must be addressed.

  17. 75 FR 79952 - Airworthiness Directives; DASSAULT AVIATION Model Falcon 10 Airplanes; Model FAN JET FALCON, FAN...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-12-21

    ... Model Falcon 10 Airplanes; Model FAN JET FALCON, FAN JET FALCON SERIES C, D, E, F, and G Airplanes; Model MYSTERE-FALCON 200 Airplanes; Model MYSTERE-FALCON 20-C5, 20-D5, 20-E5, and 20-F5 Airplanes; Model FALCON 2000 and FALCON 2000EX Airplanes; and Model MYSTERE-FALCON 50 and MYSTERE-FALCON 900...

  18. 14 CFR 121.181 - Airplanes: Reciprocating engine-powered: En route limitations: One engine inoperative.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... 14 Aeronautics and Space 3 2011-01-01 2011-01-01 false Airplanes: Reciprocating engine-powered: En... OPERATIONS Airplane Performance Operating Limitations § 121.181 Airplanes: Reciprocating engine-powered: En... person operating a reciprocating engine powered airplane may take off that airplane at a weight,...

  19. 14 CFR 121.181 - Airplanes: Reciprocating engine-powered: En route limitations: One engine inoperative.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... 14 Aeronautics and Space 3 2010-01-01 2010-01-01 false Airplanes: Reciprocating engine-powered: En... OPERATIONS Airplane Performance Operating Limitations § 121.181 Airplanes: Reciprocating engine-powered: En... person operating a reciprocating engine powered airplane may take off that airplane at a weight,...

  20. Guidelines for software inspections

    NASA Technical Reports Server (NTRS)

    1983-01-01

    Quality control inspections are software problem finding procedures which provide defect removal as well as improvements in software functionality, maintenance, quality, and development and testing methodology is discussed. The many side benefits include education, documentation, training, and scheduling.

  1. Apparatus for inspecting piping

    DOEpatents

    Zollingger, W.T.; Appel, D.K.; Park, L.R.

    1995-03-21

    An inspection rabbit is described for inspecting piping systems having severe bends therein. The rabbit consists of a flexible, modular body containing a miniaturized eddy current inspection probe, a self-contained power supply for proper operation of the rabbit, an outer surface that allows ease of movement through piping systems and means for transmitting data generated by the inspection device. The body is preferably made of flexible polyvinyl chloride (PVC) tubing or, alternatively, silicone rubber with a shrink wrapping of polytetrafluoroethylene (TEFLON{trademark}). The body is formed to contain the power supply, preferably a plurality of batteries, and a spool of communication wire that connects to a data processing computer external to the piping system. 6 figures.

  2. Remote surface inspection system

    NASA Technical Reports Server (NTRS)

    Hayati, S.; Balaram, J.; Seraji, H.; Kim, W. S.; Tso, K.; Prasad, V.

    1993-01-01

    This paper reports on an on-going research and development effort in remote surface inspection of space platforms such as the Space Station Freedom (SSF). It describes the space environment and identifies the types of damage for which to search. This paper provides an overview of the Remote Surface Inspection System that was developed to conduct proof-of-concept demonstrations and to perform experiments in a laboratory environment. Specifically, the paper describes three technology areas: (1) manipulator control for sensor placement; (2) automated non-contact inspection to detect and classify flaws; and (3) an operator interface to command the system interactively and receive raw or processed sensor data. Initial findings for the automated and human visual inspection tests are reported.

  3. Apparatus for inspecting piping

    DOEpatents

    Zollingger, W. Thor; Appel, D. Keith; Park, Larry R.

    1995-01-01

    An inspection rabbit for inspecting piping systems having severe bends therein. The rabbit consists of a flexible, modular body containing a miniaturized eddy current inspection probe, a self-contained power supply for proper operation of the rabbit, an outer surface that allows ease of movement through piping systems and means for transmitting data generated by the inspection device. The body is preferably made of flexible polyvinyl chloride (PVC) tubing or, alternatively, silicone rubber with a shrink wrapping of polytetrafluoroethylene (TEFLON.RTM.). The body is formed to contain the power supply, preferably a plurality of batteries, and a spool of communication wire that connects to a data processing computer external to the piping system.

  4. Information-Driven Inspections

    SciTech Connect

    Laughter, Mark D; Whitaker, J Michael; Lockwood, Dunbar

    2010-01-01

    New uranium enrichment capacity is being built worldwide in response to perceived shortfalls in future supply. To meet increasing safeguards responsibilities with limited resources, the nonproliferation community is exploring next-generation concepts to increase the effectiveness and efficiency of safeguards, such as advanced technologies to enable unattended monitoring of nuclear material. These include attribute measurement technologies, data authentication tools, and transmission and security methods. However, there are several conceptual issues with how such data would be used to improve the ability of a safeguards inspectorate such as the International Atomic Energy Agency (IAEA) to reach better safeguards conclusions regarding the activities of a State. The IAEA is pursuing the implementation of information-driven safeguards, whereby all available sources of information are used to make the application of safeguards more effective and efficient. Data from continuous, unattended monitoring systems can be used to optimize on-site inspection scheduling and activities at declared facilities, resulting in fewer, better inspections. Such information-driven inspections are the logical evolution of inspection planning - making use of all available information to enhance scheduled and randomized inspections. Data collection and analysis approaches for unattended monitoring systems can be designed to protect sensitive information while enabling information-driven inspections. A number of such inspections within a predetermined range could reduce inspection frequency while providing an equal or greater level of deterrence against illicit activity, all while meeting operator and technology holder requirements and reducing inspector and operator burden. Three options for using unattended monitoring data to determine an information-driven inspection schedule are to (1) send all unattended monitoring data off-site, which will require advances in data analysis techniques to

  5. Nuclear Plant Inspection

    NASA Technical Reports Server (NTRS)

    1983-01-01

    Engineers from the Power Authority of the State of New York use a Crack Growth Analysis Program supplied by COSMIC (Computer Software Management and Information Center) in one stage of nuclear plant inspection. Welds of the nuclear steam supply system are checked for cracks; radiographs, dye penetration and visual inspections are performed to locate cracks in the metal structure and welds. The software package includes three separate crack growth analysis models and enables necessary repairs to be planned before serious problems develop.

  6. Wedges for ultrasonic inspection

    DOEpatents

    Gavin, Donald A.

    1982-01-01

    An ultrasonic transducer device is provided which is used in ultrasonic inspection of the material surrounding a threaded hole and which comprises a wedge of plastic or the like including a curved threaded surface adapted to be screwed into the threaded hole and a generally planar surface on which a conventional ultrasonic transducer is mounted. The plastic wedge can be rotated within the threaded hole to inspect for flaws in the material surrounding the threaded hole.

  7. Source Inspection Scheduling Calendar

    NASA Technical Reports Server (NTRS)

    Hollis, Brayden

    2011-01-01

    Quality is an essential component for creating flight hardware travelling through space since the hardware is extremely expensive and cannot be reworked or repaired once launched. An important step in this process is ensuring the quality of hardware procured from Jet Propulsion Laboratory's (JPL) suppliers. An important element of determining supplier quality is source inspection. Source inspections are performed at suppliers' facilities by JPL employeesto ensure that hardware characteristics are acceptable before being covered up and/or delivered to JPL.

  8. 14 CFR 121.413 - Initial and transition training and checking requirements: Check airmen (airplane), check airmen...

    Code of Federal Regulations, 2012 CFR

    2012-01-01

    ... Aeronautics and Space FEDERAL AVIATION ADMINISTRATION, DEPARTMENT OF TRANSPORTATION (CONTINUED) AIR CARRIERS...), flight engineer check airmen (airplane), and flight navigator check airmen (airplane) must include the... flight engineer check airmen (airplane) and flight navigator check airmen (airplane), training to...

  9. 14 CFR 121.413 - Initial and transition training and checking requirements: Check airmen (airplane), check airmen...

    Code of Federal Regulations, 2013 CFR

    2013-01-01

    ... Aeronautics and Space FEDERAL AVIATION ADMINISTRATION, DEPARTMENT OF TRANSPORTATION (CONTINUED) AIR CARRIERS...), flight engineer check airmen (airplane), and flight navigator check airmen (airplane) must include the... flight engineer check airmen (airplane) and flight navigator check airmen (airplane), training to...

  10. 14 CFR 121.413 - Initial and transition training and checking requirements: Check airmen (airplane), check airmen...

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... Aeronautics and Space FEDERAL AVIATION ADMINISTRATION, DEPARTMENT OF TRANSPORTATION (CONTINUED) AIR CARRIERS...), flight engineer check airmen (airplane), and flight navigator check airmen (airplane) must include the... flight engineer check airmen (airplane) and flight navigator check airmen (airplane), training to...

  11. Quantitative Inspection Technologies for Aging Military Aircraft

    DTIC Science & Technology

    2013-11-01

    177 Figure 133. Aircraft Mockup With EDM Notches Marked As Red Dots And Numbered In Magnified Photos...178 ix Approved for public release; distribution is unlimited Figure 134. First Test Of The Pantograph Scanner On The Mockup Aircraft...180 Figure 137. CAD Model Of Arc Scanner And Simulated Aircraft Fitting Mockup Panel ..................................... 181 Figure 138

  12. 76 FR 62673 - Airworthiness Directives; Airbus Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-10-11

    ... during scheduled maintenance checks by operators of A300B4 and A300-600 type aeroplanes on which the... INFORMATION CONTACT: Dan Rodina, Aerospace Engineer, International Branch, ANM-116, Transport Airplane... November 3, 2010, we issued AD 2010-23-26, Amendment 39-16516 (75 FR 74610, December 1, 2010). That...

  13. 77 FR 73343 - Airworthiness Directives; Airbus Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-12-10

    ... Rodina, Aerospace Engineer, International Branch, ANM-116, Transport Airplane Directorate, FAA, 1601 Lind... Information Airbus has issued Alert Operators Transmission A25W001-12, dated June 6, 2012; and EADS SOGERMA... on U.S. operators to be $741,888, or $4,608 per product. Authority for This Rulemaking Title 49...

  14. 78 FR 52405 - Airworthiness Directives; Airbus Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-08-23

    ... INFORMATION CONTACT: Vladimir Ulyanov, Aerospace Engineer, International Branch, ANM-116, Transport Airplane... AD on U.S. operators to be $17,850, or $595 per product. In addition, we estimate that any necessary... rule'' under the DOT Regulatory Policies and Procedures (44 FR 11034, February 26, 1979); 3. Will...

  15. 78 FR 29261 - Airworthiness Directives; Airbus Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-05-20

    ... Ulyanov, Aerospace Engineer, International Branch, ANM-116, Transport Airplane Directorate, FAA, 1601 Lind... states: One A330 operator recently reported a case where two adjacent frame (FR) forks of a forward cargo.... To address this condition, Airbus issued four separate Alert Operators Transmissions (AOT),...

  16. 77 FR 36146 - Airworthiness Directives; Airbus Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-06-18

    ...-amplifier and MTI units. This AD also adds Model A310 series airplanes to the applicability. We are issuing... Sensor- Amplifier (FLSA) and Multi Tank Indicators (MTI) units. FLSA and MTI failures have been... sensor-amplifier and multi-tank indicator (MTI) units. We are issuing this AD to prevent degradation...

  17. 78 FR 9341 - Airworthiness Directives; Airbus Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-02-08

    ... flight of civil aircraft in air commerce by prescribing regulations for practices, methods, and... Aircraft Flight Manual (AFM) to include the following information. This may be done by inserting a copy of... certain Airbus airplane flight manual (AFM) temporary revisions into the AFM. We have not included...

  18. Flight Instructor: Airplane. Written Test Guide.

    ERIC Educational Resources Information Center

    Federal Aviation Administration (DOT), Washington, DC. Flight Standards Service.

    The Flight Standards Service of the Federal Aviation Administration developed the guide to assist applicants who are preparing for the Flight Instructor Certificate with Airplane Rating. The guide contains comprehensive study outlines and a list of recommended study materials and tells how to obtain those publications. It also includes sample test…

  19. 77 FR 65146 - Airworthiness Directives; Airbus Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-10-25

    ... and retard mode, in case of go-around, might lead to a temporary loss of airplane longitudinal control... comments by any of the following methods: Federal eRulemaking Portal: Go to http://www.regulations.gov... flare and retard mode, in case of go-around, the situation may lead to a temporary loss of...

  20. 77 FR 15644 - Airworthiness Directives; Airbus Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-03-16

    ... tank explosions and consequent loss of the airplane. DATES: We must receive comments on this proposed... tanks, which, in combination with flammable fuel vapors, could result in fuel tank explosions and... docket. The FAA has examined the underlying safety issues involved in fuel tank explosions on...

  1. Computing Airplane Stopping Distance: Applications of Derivatives.

    ERIC Educational Resources Information Center

    Tylee, J. Louis

    1997-01-01

    Presents two real world applications that use derivatives and are related to computing the distance required to stop an airplane. Examines the curve-fitting techniques used to develop an equation for braking force and develops equations for the deceleration and speed. (DDR)

  2. 14 CFR 129.25 - Airplane security.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... 14 Aeronautics and Space 3 2011-01-01 2011-01-01 false Airplane security. 129.25 Section 129.25 Aeronautics and Space FEDERAL AVIATION ADMINISTRATION, DEPARTMENT OF TRANSPORTATION (CONTINUED) AIR CARRIERS... AND FOREIGN OPERATORS OF U.S.-REGISTERED AIRCRAFT ENGAGED IN COMMON CARRIAGE General § 129.25...

  3. A study of airplane engine tests

    NASA Technical Reports Server (NTRS)

    Gage, Victor R

    1920-01-01

    This report is a study of the results obtained from a large number of test of an Hispano-Suiza airplane engine in the altitude laboratory of the Bureau of Standards. It was originally undertaken to determine the heat distribution in such an engine, but many other factors are also considered as bearing on this matter.

  4. 14 CFR 129.25 - Airplane security.

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ... 14 Aeronautics and Space 3 2014-01-01 2014-01-01 false Airplane security. 129.25 Section 129.25... security. Foreign air carriers conducting operations under this part must comply with the applicable security requirements in 49 CFR chapter XII....

  5. 14 CFR 129.25 - Airplane security.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... 14 Aeronautics and Space 3 2010-01-01 2010-01-01 false Airplane security. 129.25 Section 129.25... security. Foreign air carriers conducting operations under this part must comply with the applicable security requirements in 49 CFR chapter XII....

  6. 14 CFR 129.25 - Airplane security.

    Code of Federal Regulations, 2012 CFR

    2012-01-01

    ... 14 Aeronautics and Space 3 2012-01-01 2012-01-01 false Airplane security. 129.25 Section 129.25... security. Foreign air carriers conducting operations under this part must comply with the applicable security requirements in 49 CFR chapter XII....

  7. 76 FR 50706 - Airworthiness Directives; SOCATA Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-08-16

    ... INFORMATION CONTACT: Albert Mercado, Aerospace Engineer, FAA, Small Airplane Directorate, 901 Locust, Room 301, Kansas City, Missouri 64106; telephone: (816) 329-4119; fax: (816) 329-4090; e-mail: albert.mercado@faa... the procedures found in 14 CFR 39.19. Send information to ATTN: Albert Mercado, Aerospace...

  8. 77 FR 36125 - Airworthiness Directives; SOCATA Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-06-18

    ... CONTACT: Albert Mercado, Aerospace Engineer, FAA, Small Airplane Directorate, 901 Locust, Room 301, Kansas City, Missouri 64106; telephone: (816) 329-4119; fax: (816) 329-4090; email: albert.mercado@faa.gov... 14 CFR 39.19. Send information to ATTN: Albert Mercado, Aerospace Engineer, FAA, Small...

  9. 76 FR 65419 - Airworthiness Directives; SOCATA Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-10-21

    .... ] FOR FURTHER INFORMATION CONTACT: Albert Mercado, Aerospace Engineer, FAA, Small Airplane Directorate...-mail: albert.mercado@faa.go v. SUPPLEMENTARY INFORMATION: Comments Invited We invite you to send any... the procedures found in 14 CFR 39.19. Send information to ATTN: Albert Mercado, Aerospace...

  10. 76 FR 50405 - Airworthiness Directives; SOCATA Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-08-15

    ...: Albert Mercado, Aerospace Engineer, FAA, Small Airplane Directorate, 901 Locust, Room 301, Kansas City, Missouri 64106; telephone: (816) 329-4119; fax: (816) 329-4090; e-mail: albert.mercado@faa.gov... the procedures found in 14 CFR 39.19. Send information to ATTN: Albert Mercado, Aerospace...

  11. 77 FR 14314 - Airworthiness Directives; SOCATA Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-03-09

    ... receipt. FOR FURTHER INFORMATION CONTACT: Albert Mercado, Aerospace Engineer, FAA, Small Airplane...; email: albert.mercado@faa.gov . SUPPLEMENTARY INFORMATION: Comments Invited We invite you to send any... 14 CFR 39.19. Send information to ATTN: Albert Mercado, Aerospace Engineer, FAA, Small...

  12. Mars Airplane Valles Marineris Terrain Flight

    NASA Technical Reports Server (NTRS)

    2001-01-01

    This is a computer simulation showing a proposed configuration of the Langley Mars Airplane on a flyover of the Valles Marineris system on the planet Mars. The actual flight is scheduled for Dec. 17, 2003, timed to mark the 100th anniversary of the Wright brothers' historic powered flight at Kitty Hawk, N.C.

  13. 77 FR 58785 - Airworthiness Directives; Airbus Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-09-24

    ... shells of passenger doors 2 and 4 may not have sufficient structural strength to enable the airplane to... availability of this material at the FAA, call 425-227-1221. Examining the AD Docket You may examine the AD...) may not have sufficient structural strength to enable the aeroplane to operate safety beyond...

  14. Two-stroke-cycle engines for airplanes

    NASA Technical Reports Server (NTRS)

    Jalbert, J

    1926-01-01

    Now that the two-stroke-cycle engine has begun to make its appearance in automobiles, it is important to know what services we have a right to expect of it in aeronautics, what conditions must be met by engines of this type for use on airplanes and what has been accomplished.

  15. 77 FR 60331 - Airworthiness Directives; Airbus Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-10-03

    ... A321 series airplanes. This proposed AD was prompted by a report of an uncommanded nose landing gear... the landing gear control interface unit (LGCIU). We are proposing this AD to prevent untimely... A320 aeroplane was preparing to initiate taxi, when an uncommanded nose landing gear (NLG)...

  16. 78 FR 41286 - Airworthiness Directives; Airbus Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-07-10

    ..., and A321 series airplanes. This AD was prompted by a report of an uncommanded nose landing gear (NLG) retraction. This AD requires installing a power interruption protection circuit for the landing gear control... uncommanded nose landing gear (NLG) retraction occurred, causing the nose of the aeroplane to hit the...

  17. 76 FR 79560 - Airworthiness Directives; Airbus Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-12-22

    ... ``PRIM 1'' inoperative is prohibited.'' (1) Model A330-223F and -243F airplanes. (2) Model A330-200 and... ``PRIM 1'' inoperative is allowed provided that the operational test of the FCPC3 second electrical power... applicable, before dispatch with FCPC ``PRIM 1'' inoperative.'' Note 3: Model A330-223F and -243F...

  18. Safety and design in airplane construction

    NASA Technical Reports Server (NTRS)

    Teichmann, Alfred

    1934-01-01

    The author gives a survey of the principles of stress analysis and design of airplane structures, and discusses the fundamental strength specifications and their effect on the stress analysis as compared with the safety factors used in other branches of engineering.

  19. 78 FR 40074 - Airworthiness Directives; Airbus Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-07-03

    ... series airplanes. This proposed AD was prompted by a determination that oxygen generators installed on a certain batch of passenger emergency oxygen container assemblies might become detached by extreme pulling of the mask tube at the end of oxygen supply causing a high temperature oxygen generator and mask...

  20. 78 FR 64162 - Airworthiness Directives; Airbus Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-10-28

    ... A321 series airplanes. This AD was prompted by a determination that oxygen generators installed on a certain batch of passenger emergency oxygen container assemblies might become detached by extreme pulling of the mask tube at the end of the oxygen supply causing a high temperature oxygen generator and...

  1. 78 FR 79292 - Airworthiness Directives; Airbus Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-12-30

    ... corresponds to FAA AD 2007-14-01, Amendment 39-15123, (72 FR 38006, July 12, 2007)] to require compliance with... 2007-14-01, Amendment 39-15123, (72 FR 38006, July 12, 2007)] to require compliance with FAL specified... also adds new airplanes to the applicability of this AD. AD 2011-24-09 (76 FR 73486, November 29,...

  2. Static longitudinal stability of "Ente" airplanes

    NASA Technical Reports Server (NTRS)

    Kiel, Heinrich Georg

    1931-01-01

    The stability conditions of Ente (duck) airplanes are investigated in this report. In developing the formulas, which afford an approximate solution, the unimportant effect of the height of the C.G. and the moment of the residual resistance are neglected. The effect of downwash from the forward horizontal empennage on the wing are also disregarded.

  3. 78 FR 78294 - Airworthiness Directives; Airbus Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-12-26

    ... airplanes. This proposed AD was prompted by the failure of the generator control unit-constant speed motor...: (202) 493-2251. Mail: U.S. Department of Transportation, Docket Operations, M- ] 30, West Building.... Department of Transportation, Docket Operations, M-30, West Building Ground Floor, Room W12-140, 1200...

  4. 77 FR 26154 - Airworthiness Directives; Airbus Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-05-03

    ... time. This AD requires installing three secondary retention plates for the gimbal bearings on the THSA... CONTACT: Dan Rodina, Aerospace Engineer, International Branch, ANM-116, Transport Airplane Directorate... been identified by analysis. Primary load path failure can be caused by bearing migration from...

  5. 78 FR 60798 - Airworthiness Directives; Airbus Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-10-02

    ... Angle of Attack (AOA) sensor blockage. The NPRM also proposed to mandate replacing the AOA sensor conic plates with AOA sensor flat plates, which is a terminating action for the AFM revision. The NPRM was prompted by a report that an airplane equipped with AOA sensors installed with conic plates...

  6. 78 FR 1723 - Airworthiness Directives; Airbus Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-01-09

    ... procedures for addressing Angle of Attack (AoA) sensor blockage. This AD also provides for optional terminating action for the AFM revision, which involves replacing AoA sensor conic plates with AoA sensor flat plates. This AD was prompted by a report that an airplane equipped with AoA sensors installed with...

  7. Requirements for satisfactory flying qualities of airplanes

    NASA Technical Reports Server (NTRS)

    Gilruth, R R

    1943-01-01

    Report discusses the results of an analysis of available data to determine what measured characteristics are significant in defining satisfactory flying qualities, what characteristics are reasonable to require of an airplane, and what influence the various design features have on the observed flying qualities.

  8. 78 FR 7 - Airworthiness Directives; Airbus Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-01-02

    ... the cargo door, a primary structure, from leading to failure of the door, which could lead to a breach... could lead to failure of the door, which could detach from the airplane or have a breach through the... have a breach through the door, resulting in potential rapid decompression. (f) Compliance You...

  9. 78 FR 53640 - Airworthiness Directives; Airbus Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-08-30

    ... From the Federal Register Online via the Government Publishing Office DEPARTMENT OF TRANSPORTATION...-014-AD; Amendment 39-17564; AD 2013-16-26] RIN 2120-AA64 Airworthiness Directives; Airbus Airplanes AGENCY: Federal Aviation Administration (FAA), Department of Transportation (DOT). ACTION: Final...

  10. Advanced ground-penetrating, imaging radar for bridge inspection

    SciTech Connect

    Warhus, J.P.; Mast, J.E.; Johansson, E.M.; Nelson, S.E.; Lee, Hua

    1993-08-01

    Inspecting high-value structures, like bridges and buildings using Ground Penetrating Radar (GPR) is an application of the technology that is growing in importance. In a typical inspection application, inspectors use GPR to locate structural components, like reinforcing bars embedded in concrete, to avoid weakening the structure while collecting core samples for detailed inspection. Advanced GPR, integrated with imaging technologies for use as an NDE tool, can provide the capability to locate and characterize construction flaws and wear- or age-induced damage in these structures without the need for destructive techniques like coring. In the following sections, we discuss an important inspection application, namely, concrete bridge deck inspection. We describe an advanced bridge deck inspection system concept and provide an overview of a program aimed at developing such a system. Examples of modeling, image reconstruction, and experimental results are presented.

  11. 76 FR 27227 - Airworthiness Directives; Airbus Model A310 Series Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-05-11

    ... Series Airplanes AGENCY: Federal Aviation Administration (FAA), Department of Transportation (DOT...-116, Transport Airplane Directorate, FAA, 1601 Lind Avenue, SW., Renton, Washington 98057-3356... airplane configuration: Cold working of trellis boom drainage holes. Repetitive detailed or rotating...

  12. 14 CFR 121.414 - Initial and transition training and checking requirements: flight instructors (airplane), flight...

    Code of Federal Regulations, 2013 CFR

    2013-01-01

    ....414 Aeronautics and Space FEDERAL AVIATION ADMINISTRATION, DEPARTMENT OF TRANSPORTATION (CONTINUED... flight training for flight instructors (airplane), flight engineer instructors (airplane), and flight... to develop during instruction. (4) For flight engineer instructors (airplane) and flight...

  13. 14 CFR 121.414 - Initial and transition training and checking requirements: flight instructors (airplane), flight...

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ....414 Aeronautics and Space FEDERAL AVIATION ADMINISTRATION, DEPARTMENT OF TRANSPORTATION (CONTINUED... flight training for flight instructors (airplane), flight engineer instructors (airplane), and flight... to develop during instruction. (4) For flight engineer instructors (airplane) and flight...

  14. 14 CFR 121.414 - Initial and transition training and checking requirements: flight instructors (airplane), flight...

    Code of Federal Regulations, 2012 CFR

    2012-01-01

    ....414 Aeronautics and Space FEDERAL AVIATION ADMINISTRATION, DEPARTMENT OF TRANSPORTATION (CONTINUED... flight training for flight instructors (airplane), flight engineer instructors (airplane), and flight... to develop during instruction. (4) For flight engineer instructors (airplane) and flight...

  15. 75 FR 12468 - Airworthiness Directives; Quartz Mountain Aerospace, Inc. Model 11E Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-03-16

    .... The airplane was operated by a student pilot, who had trouble flying the airplane when this occurred... contamination. This condition, if not corrected, could lead to difficulty controlling the airplane in...

  16. 14 CFR 23.1047 - Cooling test procedures for reciprocating engine powered airplanes.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... airplanes. Compliance with § 23.1041 must be shown for the climb (or, for multiengine airplanes with negative one-engine-inoperative rates of climb, the descent) stage of flight. The airplane must be flown...

  17. 14 CFR 23.1047 - Cooling test procedures for reciprocating engine powered airplanes.

    Code of Federal Regulations, 2012 CFR

    2012-01-01

    ... airplanes. Compliance with § 23.1041 must be shown for the climb (or, for multiengine airplanes with negative one-engine-inoperative rates of climb, the descent) stage of flight. The airplane must be flown...

  18. 14 CFR 23.1047 - Cooling test procedures for reciprocating engine powered airplanes.

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ... airplanes. Compliance with § 23.1041 must be shown for the climb (or, for multiengine airplanes with negative one-engine-inoperative rates of climb, the descent) stage of flight. The airplane must be flown...

  19. 14 CFR 23.1047 - Cooling test procedures for reciprocating engine powered airplanes.

    Code of Federal Regulations, 2013 CFR

    2013-01-01

    ... airplanes. Compliance with § 23.1041 must be shown for the climb (or, for multiengine airplanes with negative one-engine-inoperative rates of climb, the descent) stage of flight. The airplane must be flown...

  20. Piping inspection round robin

    SciTech Connect

    Heasler, P.G.; Doctor, S.R.

    1996-04-01

    The piping inspection round robin was conducted in 1981 at the Pacific Northwest National Laboratory (PNNL) to quantify the capability of ultrasonics for inservice inspection and to address some aspects of reliability for this type of nondestructive evaluation (NDE). The round robin measured the crack detection capabilities of seven field inspection teams who employed procedures that met or exceeded the 1977 edition through the 1978 addenda of the American Society of Mechanical Engineers (ASME) Section 11 Code requirements. Three different types of materials were employed in the study (cast stainless steel, clad ferritic, and wrought stainless steel), and two different types of flaws were implanted into the specimens (intergranular stress corrosion cracks (IGSCCs) and thermal fatigue cracks (TFCs)). When considering near-side inspection, far-side inspection, and false call rate, the overall performance was found to be best in clad ferritic, less effective in wrought stainless steel and the worst in cast stainless steel. Depth sizing performance showed little correlation with the true crack depths.

  1. Weight estimation techniques for composite airplanes in general aviation industry

    NASA Technical Reports Server (NTRS)

    Paramasivam, T.; Horn, W. J.; Ritter, J.

    1986-01-01

    Currently available weight estimation methods for general aviation airplanes were investigated. New equations with explicit material properties were developed for the weight estimation of aircraft components such as wing, fuselage and empennage. Regression analysis was applied to the basic equations for a data base of twelve airplanes to determine the coefficients. The resulting equations can be used to predict the component weights of either metallic or composite airplanes.

  2. Advances in inspection automation

    NASA Astrophysics Data System (ADS)

    Weber, Walter H.; Mair, H. Douglas; Jansen, Dion; Lombardi, Luciano

    2013-01-01

    This new session at QNDE reflects the growing interest in inspection automation. Our paper describes a newly developed platform that makes the complex NDE automation possible without the need for software programmers. Inspection tasks that are tedious, error-prone or impossible for humans to perform can now be automated using a form of drag and drop visual scripting. Our work attempts to rectify the problem that NDE is not keeping pace with the rest of factory automation. Outside of NDE, robots routinely and autonomously machine parts, assemble components, weld structures and report progress to corporate databases. By contrast, components arriving in the NDT department typically require manual part handling, calibrations and analysis. The automation examples in this paper cover the development of robotic thickness gauging and the use of adaptive contour following on the NRU reactor inspection at Chalk River.

  3. Modeling of airplane performance from flight-test results and validation with an F-104G airplane

    NASA Technical Reports Server (NTRS)

    Marshall, R. T.; Schweikhard, W. G.

    1973-01-01

    A technique of defining an accurate performance model of an airplane from limited flight-test data and predicted aerodynamic and propulsion system characteristics is developed. With the modeling technique, flight-test data from level accelerations are used to define a 1g performance model for the entire flight envelope of an F-104G airplane. The performance model is defined in terms of the thrust and drag of the airplane and can be varied with changes in ambient temperature or airplane weight. The model predicts the performance of the airplane within 5 percent of the measured flight-test data. The modeling technique could substantially reduce the time required for performance flight testing and produce a clear definition of the thrust and drag characteristics of an airplane.

  4. IR Spot Weld Inspect

    SciTech Connect

    Chen, Jian; Feng, Zhili

    2014-01-01

    In automotive industry, destructive inspection of spot welds is still the mandatory quality assurance method due to the lack of efficient non-destructive evaluation (NDE) tools. However, it is costly and time-consuming. Recently at ORNL, a new NDE prototype system for spot weld inspection using infrared (IR) thermography has been developed to address this problem. This software contains all the key functions that ensure the NDE system to work properly: system input/output control, image acquisition, data analysis, weld quality database generation and weld quality prediction, etc.

  5. Laboratory accreditation and inspection.

    PubMed

    Rauch, Carol A; Nichols, James H

    2007-12-01

    Clinical laboratories perform diagnostic testing in a highly regulated environment in which federal, state, and private accreditation agencies monitor the quality of testing processes. These agencies vary in the focus and stringency of their requirements, and differences exist among states. Continued accreditation requires regular inspection to assure quality of test results for physicians, insurers, and, ultimately, the patients being tested. Preparation for inspection requires understanding of the unique accreditation requirements for each institution, establishment of quality assurance and quality improvement oversight, and communication of each staff member's role in delivering quality test results for patient care.

  6. Dynamic Breaking Tests of Airplane Parts

    NASA Technical Reports Server (NTRS)

    Hertel, Heinrich

    1933-01-01

    The static stresses of airplane parts, the magnitude of which can be determined with the aid of static load assumptions, are mostly superposed by dynamic stresses, the magnitude of which has been but little explored. The object of the present investigation is to show how the strength of airplane parts can best be tested with respect to dynamic stresses with and without superposed static loading, and to what extent the dynamic strength of the parts depends on their structural design. Experimental apparatus and evaluation methods were developed and tried for the execution of vibration-strength tests with entire structural parts both with and without superposed static loading. Altogether ten metal spars and spar pieces and two wooden spars were subjected to vibration breaking tests.

  7. 77 FR 24367 - Airworthiness Directives; Airbus Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-04-24

    ... airplanes. This AD was prompted by reports of cracking in the forward lug wing of the aft bearing at rib 5... fit in the forward lug wing of the aft bearing at rib 5 of the MLG on the right-hand (RH) and left-hand (LH) wing. We are issuing this AD to prevent cracking of the forward lug wing of the aft...

  8. Analytical study of shimmy of airplane wheels

    NASA Technical Reports Server (NTRS)

    Bourcier De Carbon, Christian

    1952-01-01

    The problem of shimmy of a castering wheel, such as the nose wheel of a tricycle gear airplane, is treated analytically. The flexibility of the tire is considered to be the primary cause of shimmy. The rather simple theory developed agrees rather well with previous experimental results. The author suggests that shimmy may be eliminated through a suitable choice of landing gear dimensions in lieu of a damper.

  9. Numerical prediction of airplane trailing vortices

    NASA Astrophysics Data System (ADS)

    Czech, M. J.; Crouch, J. D.; Miller, G. D.; Strelets, M.

    2004-11-01

    The accurate prediction of airplane trailing vortices is of great interest for both cruise conditions in conjunction with the formation of contrails as well as approach conditions for reasons of flight safety and active vortex control. A numerical approach is introduced based on a quasi-3D Reynolds-Averaged Navier-Stokes formulation with a one-equation turbulence model. The numerical results show good agreement with wind-tunnel data out to ten spans for a range of wing and tail loadings typical of commercial airplanes in a landing configuration. The results show a one-, two- and three-pair system in the near-field with only minor changes to the initial lift distribution. The CFD correctly predicts the strength, demise and position of the individual vortex pairs over a range of test cases. The approach is further extended by considering thrust effects. For cruise conditions, far field predictions show the entrainment of the jet plume into the wake and provide the potential for coupling with a micro-physics model to predict the formation and early evolution of contrails. Potential influences of configuration details on the plume entrainment are considered. This numerical method also offers an attractive approach for assessing active schemes designed to accelerate the break-up of airplane trailing vortices.

  10. Flatulence on airplanes: just let it go.

    PubMed

    Pommergaard, Hans C; Burcharth, Jakob; Fischer, Anders; Thomas, William E G; Rosenberg, Jacob

    2013-02-15

    Flatus is natural and an invariable consequence of digestion, however at times it creates problems of social character due to sound and odour. This problem may be more significant on commercial airplanes where many people are seated in limited space and where changes in volume of intestinal gases, due to altered cabin pressure, increase the amount of potential flatus. Holding back flatus on an airplane may cause significant discomfort and physical symptoms, whereas releasing flatus potentially presents social complications. To avoid this problem we humbly propose that active charcoal should be embedded in the seat cushion, since this material is able to neutralise the odour. Moreover active charcoal may be used in trousers and blankets to emphasise this effect. Other less practical or politically correct solutions to overcome this problem may be to restrict access of flatus-prone persons from airplanes, by using a methane breath test or to alter the fibre content of airline meals in order to reduce its flatulent potential. We conclude that the use of active charcoal on airlines may improve flight comfort for all passengers.

  11. Advanced Subsonic Airplane Design and Economic Studies

    NASA Technical Reports Server (NTRS)

    Liebeck, Robert H.; Andrastek, Donald A.; Chau, Johnny; Girvin, Raquel; Lyon, Roger; Rawdon, Blaine K.; Scott, Paul W.; Wright, Robert A.

    1995-01-01

    A study was made to examine the effect of advanced technology engines on the performance of subsonic airplanes and provide a vision of the potential which these advanced engines offered. The year 2005 was selected as the entry-into-service (EIS) date for engine/airframe combination. A set of four airplane classes (passenger and design range combinations) that were envisioned to span the needs for the 2005 EIS period were defined. The airframes for all classes were designed and sized using 2005 EIS advanced technology. Two airplanes were designed and sized for each class: one using current technology (1995) engines to provide a baseline, and one using advanced technology (2005) engines. The resulting engine/airframe combinations were compared and evaluated on the basis on sensitivity to basic engine performance parameters (e.g. SFC and engine weight) as well as DOC+I. The advanced technology engines provided significant reductions in fuel burn, weight, and wing area. Average values were as follows: reduction in fuel burn = 18%, reduction in wing area = 7%, and reduction in TOGW = 9%. Average DOC+I reduction was 3.5% using the pricing model based on payload-range index and 5% using the pricing model based on airframe weight. Noise and emissions were not considered.

  12. Pre-Demolition Inspections

    EPA Pesticide Factsheets

    A pre-demolition inspection may be one of the most helpful and cost-efficient steps you can take to identify materials that should (or must) be removed from buildings prior to demolition. In some cases it may be required by regulation.

  13. Playground Inspection & Maintenance.

    ERIC Educational Resources Information Center

    Leeds, Gerard

    People today demand a safer work environment and a safer play environment for children. Accidents such as broken arms are no longer accepted as an inevitable part of growing up. This paper presents recommendations for the maintenance of safe playground areas and equipment, covering three main areas: (1) inspections, which should follow a specified…

  14. Intelligent inspection system

    NASA Astrophysics Data System (ADS)

    May, Jeniece; Dale, Ken; Holloway, Mike; Gaby, Willard

    1997-01-01

    The intelligent inspection system is an advanced controller and analysis system for dimensional measuring machines dedicated to measuring surface of revolution mechanical parts. IIS was developed by the Lockheed Martin Energy Systems, Inc. Oak Ridge Y-12 plant because no commercial product was available to replace the obsolete computing systems on these important machines.

  15. Inspecting Playgrounds for Hazards.

    ERIC Educational Resources Information Center

    Gold, Seymour M.

    1991-01-01

    Safe playgrounds are an essential mission for public park, recreation, education, and child care agencies. The article describes how to create safety programs and offers lists of safety program components, safety inspection steps, and preventive maintenance schedules. It also presents playground safety checklists and notes three available…

  16. Innovative Inspection Techniques

    DTIC Science & Technology

    1993-01-01

    Typical Headlamps ...................................... 23 Table 5 Typical Personal Flashlights ................................ 24 Table 6 Characteristics...increasingly large volume of constantly changing regulatory and reference materials are among the examples of administrative workload which inspectors referred...and reference materials would provide more benefits than the use of advanced NDT technology in inspections. As a general rule, inspectors felt that

  17. Inspecting Magic Words.

    ERIC Educational Resources Information Center

    White, John Howell

    1998-01-01

    Considers neopragmatism's use-value for art educators as they inspect the magic words, images, and practices that influence curriculum and instruction. Explains that neopragmatism offers art educators three concepts (contingency, demystification, and recontextualization) as tools to interpret educational beliefs and classroom practices. (CMK)

  18. Ofsted Re-Inspected

    ERIC Educational Resources Information Center

    Coffield, Frank

    2012-01-01

    The author never thought he would have to thank Ofsted for a change in its approach that may result in a major improvement in provision; and yet, with the introduction of the revised Common Inspection Framework (CIF), it has made teaching and learning (T&L) the first priority throughout the learning and skills sector. While he wishes to…

  19. Additive Manufacturing Infrared Inspection

    NASA Technical Reports Server (NTRS)

    Gaddy, Darrell

    2014-01-01

    Additive manufacturing is a rapid prototyping technology that allows parts to be built in a series of thin layers from plastic, ceramics, and metallics. Metallic additive manufacturing is an emerging form of rapid prototyping that allows complex structures to be built using various metallic powders. Significant time and cost savings have also been observed using the metallic additive manufacturing compared with traditional techniques. Development of the metallic additive manufacturing technology has advanced significantly over the last decade, although many of the techniques to inspect parts made from these processes have not advanced significantly or have limitations. Several external geometry inspection techniques exist such as Coordinate Measurement Machines (CMM), Laser Scanners, Structured Light Scanning Systems, or even traditional calipers and gages. All of the aforementioned techniques are limited to external geometry and contours or must use a contact probe to inspect limited internal dimensions. This presentation will document the development of a process for real-time dimensional inspection technique and digital quality record of the additive manufacturing process using Infrared camera imaging and processing techniques.

  20. 78 FR 26716 - Airworthiness Directives; Airbus Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-05-08

    ... currently requires a repetitive inspection program on certain check valves in the hydraulic systems that... tightening, and require a repetitive inspection program for certain check valves in the hydraulic systems on..., possibly leading to the loss of all three hydraulic systems and consequent loss of control of the...

  1. The Ad Hoc Mars Airplane science working group. [remotely piloted airplane as a Mars exploration vehicle

    NASA Technical Reports Server (NTRS)

    Clarke, V. C., Jr.

    1978-01-01

    The capability of a remotely piloted airplane as a Mars exploration vehicle in the aerial survey mode is assessed. Specific experiment areas covered include: visual imaging; gamma ray and infrared reflectance spectroscopy; gravity field; magnetic field and electromagnetic sounding; and atmospheric composition and dynamics. It is concluded that (1) the most important use of a plane in the aerial survey mode would be in topical studies and returned sample site characterization; (2) the airplane offers the unique capability to do high resolution, oblique imaging, and repeated profile measurements in the atmospheric boundary layer; and (3) it offers the best platform from which to do electromagnetic sounding.

  2. From Inspection to School Improvement? Evaluating the Accelerated Inspection Programme in Waltham Forest.

    ERIC Educational Resources Information Center

    Hopkins, David; Harris, Alma; Watling, Rob; Beresford, John

    1999-01-01

    Outlines the main findings from the evaluation of the Accelerated Inspection Programme (AIP) in Waltham Forest under three main phases (pre-inspection, inspection, and post inspection). Focuses on the relationship between inspection and school improvement. Discusses the recommendations. (CMK)

  3. Flexible ultrasonic pipe inspection apparatus

    DOEpatents

    Jenkins, C.F.; Howard, B.D.

    1994-01-01

    Pipe crawlers, pipe inspection {open_quotes}rabbits{close_quotes} and similar vehicles are widely used for inspecting the interior surfaces of piping systems, storage tanks and process vessels for damaged or flawed structural features. This paper describes the design of a flexible, modular ultrasonic pipe inspection apparatus.

  4. Multi-Sensor Inspection Telerobot

    NASA Technical Reports Server (NTRS)

    Balaram, J.; Hayati, S.; Volpe, R.

    1994-01-01

    This paper describes a telerobotic multi-sensor inspection system for space platforms developed at the Jet Propulsion Laboratory. A multi-sensor inspection end-effector incorporates cameras and lighting for visual inspection, as well as temperature and gas leak-detection sensors.

  5. 7 CFR 29.40 - Mandatory inspection.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... Regulations of the Department of Agriculture AGRICULTURAL MARKETING SERVICE (Standards, Inspections, Marketing... INSPECTION Regulations Definitions § 29.40 Mandatory inspection. Inspection authorized or required under section 5 of the Act or Section 759 of the Appropriations Act. definitions...

  6. 23 CFR 650.313 - Inspection procedures.

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ... FEDERAL HIGHWAY ADMINISTRATION, DEPARTMENT OF TRANSPORTATION ENGINEERING AND TRAFFIC OPERATIONS BRIDGES, STRUCTURES, AND HYDRAULICS National Bridge Inspection Standards § 650.313 Inspection procedures. (a) Inspect each bridge in accordance with the inspection procedures in the AASHTO Manual (incorporated...

  7. 23 CFR 650.313 - Inspection procedures.

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ... FEDERAL HIGHWAY ADMINISTRATION, DEPARTMENT OF TRANSPORTATION ENGINEERING AND TRAFFIC OPERATIONS BRIDGES, STRUCTURES, AND HYDRAULICS National Bridge Inspection Standards § 650.313 Inspection procedures. (a) Inspect each bridge in accordance with the inspection procedures in the AASHTO Manual (incorporated...

  8. Overview of the software inspection process

    SciTech Connect

    Lane, G.L.; Dabbs, R.

    1997-11-01

    This tutorial introduces attendees to the Inspection Process and teaches them how to organize and participate in a software inspection. The tutorial advocates the benefits of inspections and encourages attendees to socialize the inspection process in their organizations.

  9. 78 FR 39567 - Airworthiness Directives; Embraer S.A. Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-07-02

    ...-107-AD; Amendment 39-17477; AD 2013-11-17] RIN 2120-AA64 Airworthiness Directives; Embraer S.A... Embraer S.A. Model ERJ 170 and ERJ 190 airplanes. AD 2010-14-14 currently requires, for certain airplanes... bleed system with a new check valve and new seals, replacing the low pressure check valves (LPCVs),...

  10. 77 FR 52201 - Airworthiness Directives; The Boeing Company Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-08-29

    ... installing Aero-Engine database (AEDB) software in the airplane information management system (AIMS) hardware... 3110-BCG-00R-06, media set part number 243W0033-7, in the airplane information management system... Management, P.O. Box 3707, MC 2H-65, Seattle, Washington 98124-2207; phone: 206-544-5000, extension 1;...

  11. 77 FR 36127 - Airworthiness Directives; BAE SYSTEMS (Operations) Limited Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-06-18

    ... the airplane and possible injury to its occupants. DATES: This AD becomes effective July 23, 2012. The..., with consequent damage to the airplane and possible injury to its occupants. (f) Compliance You are... resulting in a fuel tank rupture, and consequent damage to the aeroplane and injury to its occupants....

  12. 78 FR 14644 - Airworthiness Directives; The Boeing Company Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-03-07

    ... fuel vapors, could result in a center wing fuel tank explosion, and consequent loss of the airplane... fuel tank explosion, and consequent loss of the airplane,'' to clarify the area that might be... to a fire in the area and potentially result in a center wing tank explosion. Therefore, we agree...

  13. 14 CFR 91.805 - Final compliance: Subsonic airplanes.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... 14 Aeronautics and Space 2 2010-01-01 2010-01-01 false Final compliance: Subsonic airplanes. 91... § 91.805 Final compliance: Subsonic airplanes. Except as provided in §§ 91.809 and 91.811, on and after January 1, 1985, no person may operate to or from an airport in the United States any subsonic...

  14. 14 CFR 91.805 - Final compliance: Subsonic airplanes.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... 14 Aeronautics and Space 2 2011-01-01 2011-01-01 false Final compliance: Subsonic airplanes. 91... § 91.805 Final compliance: Subsonic airplanes. Except as provided in §§ 91.809 and 91.811, on and after January 1, 1985, no person may operate to or from an airport in the United States any subsonic...

  15. 78 FR 11972 - Airworthiness Directives; The Boeing Company Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-02-21

    ... under the number 3 very high frequency (VHF) antenna on the lower external surface of the airplane at... corrosion under the number 3 VHF antenna, and corrective actions if necessary; and, for certain airplanes... structure under the number 3 VHF antenna, which could result in separation of the antenna from the...

  16. 77 FR 15640 - Airworthiness Directives; The Boeing Company Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-03-16

    ... frequency (VHF) antenna, and corrective actions if necessary; and, for certain airplanes, replacing bonded... cracks in the skin and surrounding structure under the number 3 VHF antenna on the lower external surface... number 3 VHF antenna, which could result in separation of the antenna from the airplane, and...

  17. 24. EXTERIOR VIEW, SHOWING AIRPLANES IN VERY DEEP SNOW. Photographic ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    24. EXTERIOR VIEW, SHOWING AIRPLANES IN VERY DEEP SNOW. Photographic copy of historic photograph. July-Dec. 1948 OAMA (original print located at Ogden Air Logistics Center, Hill Air Force Base, Utah). Photographer unknown. - Hill Field, Airplane Repair Hangars No. 1-No. 4, 5875 Southgate Avenue, Layton, Davis County, UT

  18. 76 FR 81879 - Airworthiness Directives; The Boeing Company Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-12-29

    ... radius of the chord on several airplanes. This action revises the original NPRM by reducing certain... number 1 upper main sill outer chord, along the bend radius of the chord, which could result in loss of... chord, along the bend radius of the chord on several airplanes. We are issuing this AD to detect...

  19. 78 FR 58960 - Airworthiness Directives; BAE SYSTEMS (OPERATIONS) LIMITED Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-09-25

    ... Federal Aviation Administration 14 CFR Part 39 RIN 2120-AA64 Airworthiness Directives; BAE SYSTEMS... rulemaking (NPRM). SUMMARY: We propose to adopt a new airworthiness directive (AD) for all BAE SYSTEMS (OPERATIONS) LIMITED Model BAe 146 series airplanes and Model Avro 146-RJ series airplanes. This proposed...

  20. 77 FR 20572 - Airworthiness Directives; BAE Systems (Operations) Limited Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-04-05

    ... Directives; BAE Systems (Operations) Limited Airplanes AGENCY: Federal Aviation Administration (FAA), DOT... (AD) for certain BAE SYSTEMS (OPERATIONS) LIMITED Model BAe 146 and Model Avro 146-RJ airplanes. This... information identified in this proposed AD, contact BAE SYSTEMS (Operations) Limited, Customer...

  1. 78 FR 63907 - Airworthiness Directives; Costruzioni Aeronautiche Tecnam srl Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-10-25

    ... receipt. FOR FURTHER INFORMATION CONTACT: Albert Mercado, Aerospace Engineer, FAA, Small Airplane...; email: albert.mercado@faa.gov . SUPPLEMENTARY INFORMATION: Comments Invited We invite you to send any... Mercado, Aerospace Engineer, FAA, Small Airplane Directorate, 901 Locust, Room 301, Kansas City,...

  2. 77 FR 56991 - Airworthiness Directives; Costruzioni Aeronautiche Tecnam srl Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-09-17

    ...: Albert Mercado, Aerospace Engineer, FAA, Small Airplane Directorate, 901 Locust, Room 301, Kansas City, Missouri 64106; phone: (816) 329-4119; fax: (816) 329-4090; email: albert.mercado@faa.gov . SUPPLEMENTARY... information to ATTN: Albert Mercado, Aerospace Engineer, FAA, Small Airplane Directorate, 901 Locust, Room...

  3. 14 CFR 23.71 - Glide: Single-engine airplanes.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... 14 Aeronautics and Space 1 2011-01-01 2011-01-01 false Glide: Single-engine airplanes. 23.71... Glide: Single-engine airplanes. The maximum horizontal distance traveled in still air, in nautical miles... with the engine inoperative, its propeller in the minimum drag position, and landing gear and...

  4. 14 CFR 23.71 - Glide: Single-engine airplanes.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... 14 Aeronautics and Space 1 2010-01-01 2010-01-01 false Glide: Single-engine airplanes. 23.71... Glide: Single-engine airplanes. The maximum horizontal distance traveled in still air, in nautical miles... with the engine inoperative, its propeller in the minimum drag position, and landing gear and...

  5. 14 CFR 23.71 - Glide: Single-engine airplanes.

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ... 14 Aeronautics and Space 1 2014-01-01 2014-01-01 false Glide: Single-engine airplanes. 23.71 Section 23.71 Aeronautics and Space FEDERAL AVIATION ADMINISTRATION, DEPARTMENT OF TRANSPORTATION AIRCRAFT... Glide: Single-engine airplanes. The maximum horizontal distance traveled in still air, in nautical...

  6. 14 CFR 23.71 - Glide: Single-engine airplanes.

    Code of Federal Regulations, 2012 CFR

    2012-01-01

    ... 14 Aeronautics and Space 1 2012-01-01 2012-01-01 false Glide: Single-engine airplanes. 23.71 Section 23.71 Aeronautics and Space FEDERAL AVIATION ADMINISTRATION, DEPARTMENT OF TRANSPORTATION AIRCRAFT... Glide: Single-engine airplanes. The maximum horizontal distance traveled in still air, in nautical...

  7. 77 FR 71729 - Airworthiness Directives; Bombardier, Inc. Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-12-04

    ...). SUMMARY: We propose to supersede an existing airworthiness directive (AD) that applies to certain Bombardier, Inc. Model DHC-8-400 series airplanes. The existing AD currently requires a free-play check for... PCU. Since we issued that AD, we have determined that additional airplanes are affected by...

  8. 77 FR 15293 - Airworthiness Directives; Dassault Aviation Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-03-15

    ... Federal Aviation Administration 14 CFR Part 39 RIN 2120-AA64 Airworthiness Directives; Dassault Aviation Airplanes AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Notice of proposed rulemaking (NPRM... Aviation Model FALCON 7X airplanes. The existing AD currently requires revising the Abnormal Procedures...

  9. 77 FR 60323 - Airworthiness Directives; DASSUALT AVIATION Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-10-03

    ...; ] DEPARTMENT OF TRANSPORTATION Federal Aviation Administration 14 CFR Part 39 RIN 2120-AA64 Airworthiness Directives; DASSUALT AVIATION Airplanes AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Notice of... DASSAULT AVIATION Model MYSTERE-FALCON 50 airplanes. This proposed AD was prompted by a...

  10. 77 FR 44511 - Airworthiness Directives; Alpha Aviation Concept Limited Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-07-30

    ... Federal Aviation Administration 14 CFR Part 39 RIN 2120-AA64 Airworthiness Directives; Alpha Aviation Concept Limited Airplanes AGENCY: Federal Aviation Administration (FAA), Department of Transportation (DOT... (AD) for Alpha Aviation Concept Limited Model R2160 Airplanes. This proposed AD results from...

  11. 78 FR 69785 - Airworthiness Directives; Slingsby Aviation Ltd. Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-11-21

    ... Federal Aviation Administration 14 CFR Part 39 RIN 2120-AA64 Airworthiness Directives; Slingsby Aviation Ltd. Airplanes AGENCY: Federal Aviation Administration (FAA), Department of Transportation (DOT... (AD) for Slingsby Aviation Ltd. Model T67M260 airplanes. This proposed AD results from...

  12. 78 FR 61220 - Airworthiness Directives; Dassault Aviation Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-10-03

    ...; ] DEPARTMENT OF TRANSPORTATION Federal Aviation Administration 14 CFR Part 39 RIN 2120-AA64 Airworthiness Directives; Dassault Aviation Airplanes AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Notice of... Dassault Aviation Model FALCON 2000 and FALCON 2000EX airplanes. This proposed AD was prompted by...

  13. 77 FR 61539 - Airworthiness Directives; DASSAULT AVIATION Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-10-10

    ...; ] DEPARTMENT OF TRANSPORTATION Federal Aviation Administration 14 CFR Part 39 RIN 2120-AA64 Airworthiness Directives; DASSAULT AVIATION Airplanes AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Notice of... DASSAULT AVIATION Model FALCON 2000, FALCON 2000EX, MYSTERE- FALCON 900 and FALCON 900EX airplanes; and...

  14. 78 FR 40065 - Airworthiness Directives; Dassault Aviation Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-07-03

    ... Federal Aviation Administration 14 CFR Part 39 RIN 2120-AA64 Airworthiness Directives; Dassault Aviation Airplanes AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Notice of proposed rulemaking (NPRM... Aviation Model FALCON 7X airplanes. The existing AD currently requires adding an automatic reversion...

  15. 77 FR 3587 - Airworthiness Directives; The Boeing Company Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-01-25

    ... new airworthiness directive (AD) for certain Model 767-200 and 767-300 series airplanes. This AD was... potential loss of several functions essential for safe flight. DATES: This AD is effective February 29, 2012...) Applicability This AD applies to The Boeing Company Model 767-200 and 767-300 series airplanes, certificated...

  16. 77 FR 25642 - Airworthiness Directives; Bombardier, Inc. Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-05-01

    ... control of the airplane on the ground, or a jammed nose landing gear (NLG) door that could prevent the NLG... landing gear (NLG) door that could prevent the NLG from retracting or extending. This directive mandates... directional control of the airplane on the ground, or a jammed nose landing gear (NLG) door that could...

  17. 77 FR 36206 - Airworthiness Directives; The Boeing Company Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-06-18

    ..., -200LR, -300, and -300ER series airplanes. This proposed AD was prompted by reports of in-service events related to electrical power system malfunctions resulting in damage to electrical load management system... Boeing Commercial Airplanes, Attention: Data & Services Management, P.O. Box 3707, MC 2H-65,...

  18. 77 FR 60296 - Airworthiness Directives; The Boeing Company Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-10-03

    ... lack of oxygen in the body), and consequent loss of control of the airplane. DATES: This AD is... incapacitation of the flightcrew due to hypoxia (a lack of oxygen in the body), and consequent loss of control of... oxygen in the body), and consequent loss of control of the airplane. (f) Compliance Comply with this...

  19. 77 FR 45979 - Airworthiness Directives; Piper Aircraft, Inc. Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-08-02

    ...] RIN 2120-AA64 Airworthiness Directives; Piper Aircraft, Inc. Airplanes AGENCY: Federal Aviation... airworthiness directive (AD) for certain Piper Aircraft, Inc. (type certificate previously held by The New Piper Aircraft Inc.) PA-28, PA-32, PA-34, and PA-44 airplanes. This proposed AD was prompted by reports...

  20. 78 FR 24689 - Airworthiness Directives; PILATUS Aircraft Ltd. Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-04-26

    ... From the Federal Register Online via the Government Publishing Office #0; #0;Proposed Rules #0... 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...

  1. 78 FR 54561 - Airworthiness Directives; Piper Aircraft, Inc. Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-09-05

    ... From the Federal Register Online via the Government Publishing Office #0; #0;Rules and Regulations...-17457; AD 2013-10-04] RIN 2120-AA64 Airworthiness Directives; Piper Aircraft, Inc. Airplanes AGENCY... Aircraft, Inc. Models PA-31, PA-31-325, and PA-31-350 airplanes. Table 1 of paragraph (g) lists...

  2. 77 FR 72250 - Airworthiness Directives; Cessna Aircraft Company Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-12-05

    ... From the Federal Register Online via the Government Publishing Office ] DEPARTMENT OF... Aircraft Company Airplanes AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Notice of proposed... Aircraft Company Models 172R and 172S airplanes. This proposed AD was prompted by reports of chafing of...

  3. 77 FR 50054 - Airworthiness Directives; Cessna Aircraft Company Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-08-20

    ... From the Federal Register Online via the Government Publishing Office #0; #0;Proposed Rules #0... Directives; Cessna Aircraft Company Airplanes AGENCY: Federal Aviation Administration (FAA), DOT. ACTION... certain Cessna Aircraft Company Models 172R and 172S airplanes. This proposed AD was prompted by...

  4. 78 FR 4051 - Airworthiness Directives; The Boeing Company Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-01-18

    ... requires replacing the control switches of the forward, aft, and nose cargo doors of Model 747 airplanes; and requires replacing the control switches of cargo doors 1 and 2 of Model 757 series airplanes. This... continue to require replacing the control switches of the forward, aft, and nose cargo doors of Model...

  5. 78 FR 6247 - Airworthiness Directives; the Boeing Company Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-01-30

    ... Federal Aviation Administration 14 CFR Part 39 RIN 2120-AA64 Airworthiness Directives; the Boeing Company... Company Model 757 airplanes. The existing AD currently requires revising the maintenance program by..., 2012), for all The Boeing Company Model 757 airplanes. That AD superseded AD 2008-10-11, Amendment...

  6. 78 FR 6254 - Airworthiness Directives; The Boeing Company Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-01-30

    ... Federal Aviation Administration 14 CFR Part 39 RIN 2120-AA64 Airworthiness Directives; The Boeing Company... directive (AD) for all The Boeing Company Model 737-300, -400, and -500 series airplanes. That NPRM proposed... all The Boeing Company Model 737-300, -400, and -500 series airplanes. That NPRM published in...

  7. 78 FR 38550 - Airworthiness Directives; The Boeing Company Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-06-27

    ...-226-AD; Amendment 39-17493; AD 2013-13-05] RIN 2120-AA64 Airworthiness Directives; The Boeing Company... new airworthiness directive (AD) for all The Boeing Company Model 747SP series airplanes, and certain The Boeing Company Model 747-100B SUD and 747-300 series airplanes. This AD was prompted by...

  8. 78 FR 73457 - Airworthiness Directives; the Boeing Company Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-12-06

    ... limit of validity (LOV) of the engineering data that support the structural maintenance program under 14... mandated programs intended to support the airplane reaching its limit of validity (LOV) of the engineering data that support the established structural maintenance program. For certain airplanes, this...

  9. 77 FR 52212 - Airworthiness Directives; The Boeing Company Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-08-29

    ... Delta requested that the exceptions to certain compliance times in paragraph (p)(2) of the NPRM (76 FR..., 2011) and the FAA's response to each comment. Request To Add Compliance Time for Group 2 Airplanes... a 90-day compliance time for airplanes in Group 2. The commenter stated that Boeing...

  10. Measurement of the handling characteristics of two light airplanes

    NASA Technical Reports Server (NTRS)

    1980-01-01

    A flight investigation of the handling characteristics of two single engine general aviation airplanes, one a high wing and the other a low wing, included a variety of measurements of different characteristics of the airplanes. The characteristics included those of the control systems, performance, longitudinal and lateral responses, and stall motions.

  11. 77 FR 57534 - Airworthiness Directives; Piper Aircraft, Inc. Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-09-18

    ... Aircraft, Inc. Airplanes AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Notice of proposed... all Piper Aircraft, Inc. Models PA-31, PA-31-325, and PA-31-350 airplanes. The existing AD currently... or replacement of parts as necessary. Since we issued that AD, forced landings of aircraft...

  12. 78 FR 22802 - Airworthiness Directives; the Boeing Company Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-04-17

    ... proposed AD would require replacing certain relays and relay sockets, and doing wiring changes. For certain airplanes, this proposed AD would also require installing new relay panels, and removing and installing.... (1) For Model 747-200B, 747-200F, 747-300, and 747SP series airplanes: Replace relays and...

  13. 76 FR 67631 - Airworthiness Directives; Cirrus Design Corporation Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-11-02

    ... Corporation Airplanes AGENCY: Federal Aviation Administration (FAA), DOT. ] ACTION: Notice of proposed... Corporation (Cirrus) Model SR22T airplanes. This proposed AD was prompted by reports of partial loss of engine... information identified in this proposed AD, contact Cirrus Design Corporation, 4515 Taylor Circle,...

  14. 77 FR 64693 - Airworthiness Directives; Hawker Beechcraft Corporation Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-10-23

    ...-17221; AD 2012-21-05] RIN 2120-AA64 Airworthiness Directives; Hawker Beechcraft Corporation Airplanes... airworthiness directive (AD) for certain Hawker Beechcraft Corporation Model G58 airplanes. This AD was prompted by notification from Hawker Beechcraft Corporation that certain affected aircraft were produced...

  15. 77 FR 12757 - Airworthiness Directives; Hawker Beechcraft Corporation Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-03-02

    ... Corporation Airplanes AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Notice of proposed... Beechcraft Corporation Models 58 and G58 airplanes. This proposed AD was prompted by installation of... information identified in this proposed AD, contact Hawker Beechcraft Corporation, B091-A04, 10511 E....

  16. 78 FR 42724 - Airworthiness Directives; Beechcraft Corporation Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-07-17

    ... Corporation Airplanes AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Notice of proposed... certain Beechcraft Corporation Models 1900, 1900C, and 1900D airplanes. AD 2011-27-51 currently requires..., except Federal holidays. For service information identified in this AD, contact Beechcraft Corporation...

  17. 78 FR 65185 - Airworthiness Directives; The Boeing Company Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-10-31

    ... From the Federal Register Online via the Government Publishing Office DEPARTMENT OF TRANSPORTATION... Airplanes AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Final rule. SUMMARY: We are adopting a new airworthiness directive (AD) for certain The Boeing Company Model 727 airplanes. This AD...

  18. 77 FR 12173 - Airworthiness Directives; Bombardier, Inc. Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-02-29

    .... Airplanes AGENCY: Federal Aviation Administration (FAA), Department of Transportation (DOT). ACTION: Final... From the Federal Register Online via the Government Publishing Office DEPARTMENT OF TRANSPORTATION...-2C10 (Regional Jet Series 700, 701, & 702) airplanes; Model CL-600-2D15 (Regional Jet Series...

  19. 78 FR 32579 - Airworthiness Directives; Bombardier, Inc. Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-05-31

    ... From the Federal Register Online via the Government Publishing Office DEPARTMENT OF TRANSPORTATION.... Airplanes AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Notice of proposed rulemaking (NPRM...-2C10 (Regional Jet Series 700, 701, & 702) airplanes, Model CL-600-2D15 (Regional Jet Series...

  20. 77 FR 76230 - Airworthiness Directives; The Boeing Company Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-12-27

    ... From the Federal Register Online via the Government Publishing Office DEPARTMENT OF TRANSPORTATION... Airplanes AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Final rule. SUMMARY: We are adopting a..., and -900ER series airplanes. This AD was prompted by reports of escape slides failing to deploy...