Results
2021-10-13: The FAA is superseding Airworthiness Directive (AD) 2015-17- 08, which applied to certain Bombardier, Inc. Model DHC-8-400 series airplanes. AD 2015-17-08 required installing new cable assemblies with a pull-down resistor. This AD requires modifications to the nose wheel steering (NWS) system. This AD was prompted by a report indicating that several failure modes of the NWS system may cause the loss of feedback from both rotary variable differential transformers to the steering control unit. The FAA is issuing this AD to address the unsafe condition on these products.
2008-13-09: We are adopting a new airworthiness directive (AD) for the products listed above. This AD results from mandatory continuing airworthiness information (MCAI) originated by an aviation authority of another country to identify and correct an unsafe condition on an aviation product. The MCAI describes the unsafe condition as: Bombardier Aerospace has completed a system safety review of the aircraft fuel system against fuel tank safety standards * * *. [A]ssessment showed that supplemental maintenance tasks [inspections of fuel tank bonding jumpers, wiring harnesses, and drain valve components, among other items and actions; and applicable corrective actions] are required to prevent potential ignition sources within the fuel system, which could result in a fuel tank explosion. * * * We are issuing this AD to require actions to correct the unsafe condition on these products.
2003-17-14: This amendment adopts a new airworthiness directive (AD), applicable to certain Airbus Model A300 B2 and B4; A300 B4-600, A300 B4-600R, and A300 F4-600R (collectively called A300-600); A310; A319; A320; A321; A330; and A340 series airplanes; equipped with certain PPG Aerospace windshields. This AD requires replacement of certain windshields manufactured by PPG Aerospace with new windshields. This action is necessary to prevent failure of both structural plies of the windshield caused by overheating of the power lead wire, which could cause reduced structural integrity of the windshield assembly, and consequent loss of the windshield during flight. This action is intended to address the identified unsafe condition.
2008-17-02: We are superseding an existing airworthiness directive (AD) for the products listed above. This AD results from mandatory continuing airworthiness information (MCAI) originated by an aviation authority of another country to identify and correct an unsafe condition on an aviation product. The MCAI describes the unsafe condition as: During routine visual inspection, a crack has been found in the wing MLG (main landing gear) rib 5 forward attachment lug on two A310 in-service aircraft. Laboratory examination of one of the cracked ribs confirmed that the crack is due to the presence of pitting corrosion in the forward lug holes. Also on both aircraft medium to heavy corrosion was found in the forward lugs on the opposite wing after removal of the bushes. This situation if not detected, could affect the structural integrity of the MLG attachment. * * * * * * * * We are issuing this AD to require actions to correct the unsafe condition on these products. DATES: This AD becomes effective September 17, 2008. The Director of the Federal Register approved the incorporation by reference of certain publications listed in this AD as of September 17, 2008. The Director of the Federal Register previously approved the incorporation by reference of Airbus Service Bulletin A310-57A2088, excluding Appendix 01, dated November 6, 2006, listed in this AD, as of February 6, 2007 (72 FR 2612, January 22, 2007).
2020-13-03: The FAA is superseding Airworthiness Directive (AD) 2018-07-15 for certain XtremeAir GmbH Model XA42 airplanes. This AD results from \n\n((Page 38053)) \n\nmandatory continuing airworthiness information (MCAI) issued by the aviation authority of another country to identify and correct an unsafe condition on an aviation product. The MCAI describes the unsafe condition as cracking of the diagonal struts of the engine mount frame with potential detachment of the engine from the airplane. The FAA is issuing this AD to require actions to address the unsafe condition on these products.
2003-17-13: This amendment adopts a new airworthiness directive (AD), applicable to certain Bombardier Model DHC-8-102, -103, -106, -201, - 202, -301, -311, and -315 airplanes. This AD requires replacement of the elevator stop bumpers of the horizontal stabilizer with new bumpers. The actions specified by this AD are intended to prevent damage to the elevator trailing edge due to a broken or missing elevator stop bumper, which could result in jamming of the spring tab and consequent reduced controllability of the airplane. This action is intended to address the identified unsafe condition.
83-07-13: 83-07-13 AERONAUTICA MACCHI S.p.A.: Amendment 39-4626. Applies to Model AL60 and AL60- B airplanes certificated in any category. Compliance: Required as indicated, unless already accomplished. To preclude failure of the engine mount structure, accomplish the following: (a) Within the next 100 hours time-in-service and thereafter at intervals not to exceed 100 hours time- in-service, visually inspect the front left hand brace of the engine mount for dents as specified in Aer Macchi Service Bulletin No. SB-L-0005, Revision 1, dated September 26, 1978; herein referred to as the Service Bulletin. (1) If no dents are found in the front left hand brace of the engine mount during accomplishment of the visual inspection in accordance with paragraph (a) of this AD, return aircraft to service. (2) If dents of a depth less than 0.5mm are found in the front left hand brace of the engine mount during accomplishment of the visual inspection in accordance with paragraph (a) of this AD, before further flight, reposition attaching collar of the exhaust ducts as high as possible to obtain clearance between the attaching collar and the left hand brace of the engine mount and return aircraft to service. (3) If dents of a depth of 0.5mm or greater are found in the front left hand brace of the engine mount during accomplishment of the visual inspection in accordance with paragraph (a) of this AD, before further flight, repair in accordance with instructions provided in the "DESCRIPTION AND INSTRUCTION DATA" section of the Service Bulletin, reposition attaching collar of the exhaust ducts as high as possible to obtain clearance between the attaching collar and the left hand brace of the engine mount and return aircraft to service. (b) Repair those aircraft which have previously been modified in accordance with the instructions contained in Aer Macchi Service Bulletin No. AL60/12 dated November 23, 1964, within the next 1200 hours time- in-service of the modification, in accordance with paragraph (a)(3) of this AD. (c) Operators who have not kept records of hours time-in-service of the engine mounting structure must substitute airplane hours time-in-service in lieu thereof. (d) Aircraft may be flown in accordance with Federal Aviation Regulation 21.197 to a location where this AD can be accomplished. (e) An equivalent method of compliance with this AD, if used, must be approved by the Manager, Aircraft Certification Staff, AEU-100, Europe, Africa and Middle East Office, FAA, c/o American Embassy, 1000 Brussels, Belgium. This amendment becomes effective on April 14, 1983.
2008-16-20: We are adopting a new airworthiness directive (AD) for the products listed above. This AD results from mandatory continuing airworthiness information (MCAI) issued by an aviation authority of another country to identify and correct an unsafe condition on an aviation product. The MCAI describes the unsafe condition as: The original designed bellcrank for the aileron control system in the wing needed to be installed with slightly bent rod ends during production of the aircraft to avoid friction and possible chafing. In addition to being a nonpreferable production practice, this creates the risk of replacement parts being installed during subsequent in-service maintenance without being bent or not being bent correctly. This condition, if not detected and corrected, could lead to chafing damage of the aileron control system and consequent loss of control of the aircraft. We are issuing this AD to require actions to correct the unsafe condition on these products.
85-05-03: 85-05-03 BRITISH AEROSPACE: Amendment 39-5009. Applies to Model BAe-146 airplanes as listed in British Aerospace Alert Service Bulletin 52-A14 dated June 6, 1984, certificated in all categories. Compliance is required within 30 days after the effective date of this AD. To prevent loss of the emergency escape chute, accomplish the following, unless previously accomplished: A. Inspect the passenger/service door girt bars for correct assembly in accordance with British Aerospace Alert Service Bulletin 52-A14, dated June 6, 1984. Reassemble as required by the service bulletin. Prior to installation, replacement girt bars must also be inspected in accordance with the service bulletin. B. Alternate means of compliance which provide an acceptable level of safety may be used when approved by the Manager, Seattle Aircraft Certification Office, FAA, Northwest Mountain Region. C. Special flight permits may be issued in accordance with FAR 21.197 and 21.199 to operate airplanes to a base for the accomplishment of inspections and/or modifications required by this AD. This amendment becomes effective April 1, 1985.
2003-17-12: This amendment adopts a new airworthiness directive (AD), applicable to certain McDonnell Douglas Model MD-11 and MD-11F airplanes, that requires a one-time visual inspection of the circuit breakers to determine if discrepant circuit breakers are installed, and corrective action if necessary. This action is necessary to prevent internal overheating and arcing of circuit breakers and airplane wiring due to long-term use and breakdown of internal components of the circuit breakers, which could result in smoke and fire in the flight compartment and main cabin. This action is intended to address the identified unsafe condition.