Federal Aviation Administration October 4, 2019 – Federal Register Recent Federal Regulation Documents
Results 1 - 5 of 5
Airworthiness Directives; International Aero Engines Turbofan Engines
The FAA proposes to supersede Airworthiness Directive (AD) 2019-11-08, which applies to all International Aero Engines, LLC (IAE) PW1133G-JM, PW1133GA-JM, PW1130G-JM, PW1129G-JM, PW1127G-JM, PW1127GA- JM, PW1127G1-JM, PW1124G-JM, PW1124G1-JM, and PW1122G-JM model turbofan engines. AD 2019-11-08 requires the removal of the main gearbox (MGB) assembly and electronic engine control (EEC) software and the installation of a part and software version eligible for installation for engines that operate on extended operations (ETOPS) flights. The actions in AD 2019-11-08 were interim and only addressed engines that operate on 180-minute or 120-minute ETOPS flights. The FAA now proposes to supersede AD 2019-11-08 to require removal and replacement of the MGB assembly on all affected engines, including engines that do not operate on 180-minute or 120-minute ETOPS flights. This proposed AD would retain all requirements of AD 2019-11-08 for ETOPS engines, and would also require replacement of the affected MGB assembly and EEC software at the next engine shop visit after the effective date of this AD for engines that do not operate on ETOPS flights. The FAA is proposing this AD to address the unsafe condition on these products.
Airworthiness Directives; Sikorsky Aircraft Corporation Helicopters
The FAA is superseding Airworthiness Directive (AD) 2018-10-07 for Sikorsky Aircraft Corporation (Sikorsky) Model S-76C helicopters. AD 2018-10-07 required inspecting the engine collective position transducer (CPT). This new AD retains the requirements of AD 2018-10-07 and expands the applicability. This AD is prompted by the determination that an additional part-numbered engine CPT is affected by the same unsafe condition. The FAA is issuing this AD to address the unsafe condition on these products.
Airworthiness Directives; Viking Air Limited (Type Certificate Previously Held by Bombardier, Inc.; Canadair Limited) Airplanes
The FAA proposes to adopt a new airworthiness directive (AD) for certain Viking Air Limited Model CL-215-1A10 and CL-215-6B11 (CL- 215T Variant) airplanes. This proposed AD was prompted by reports of cracks on the wing lower skin under the drag angle at a certain wing station (WS). This proposed AD would require a one-time inspection of the wing lower skin under the drag angle at a certain WS to determine if a certain repair or modification has been accomplished; repetitive visual inspections of certain fuselage structures; repetitive eddy current inspections of the front spar along a certain WS reference line, the drag angle, and all fastener holes; repetitive structural gap checks of a certain surface; and corrective actions if necessary. This proposed AD would also require replacing certain rivets with certain fasteners, and corrective actions if necessary. The FAA is proposing this AD to address the unsafe condition on these products.
Airworthiness Directives; Fokker Services B.V. Airplanes
The FAA proposes to adopt a new airworthiness directive (AD) for all Fokker Services B.V. Model F28 Mark 0070 and 0100 airplanes. This proposed AD was prompted by reports of fuselage bottom skin exfoliation corrosion, fuselage skin bulging and cracking, and missing fastener heads. This proposed AD would require a detailed inspection of the fuselage bottom skin for corrosion, skin cracks or bulges, and missing, loose or broken fasteners, and, depending on the findings, accomplishment of applicable repair instructions, as specified in a European Union Aviation Safety Agency (EASA) AD, which will be incorporated by reference. The FAA is proposing this AD to address the unsafe condition on these products.
Airworthiness Directives; Bombardier, Inc., Airplanes
The FAA proposes to adopt a new airworthiness directive (AD) for certain Bombardier, Inc., Model DHC-8-400 series airplanes. This proposed AD was prompted by a report of a quality escape in the manufacturing of the advanced pneumatic detector (APD) switches, and the presence of contamination on the switch contact pin. This proposed AD would require identification and testing, and reidentification or replacement if necessary, of affected APDs. The FAA is proposing this AD to address the unsafe condition on these products.
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