Results
2022-13-17: The FAA is superseding Airworthiness Directive (AD) 2021-15-01 for all Rolls-Royce Deutschland Ltd & Co KG (RRD) Trent XWB-75, Trent XWB-79, Trent XWB-79B, Trent XWB-84, and Trent XWB-97 model turbofan engines. AD 2021-15-01 required revisions to the airworthiness limitations section (ALS) of the Rolls-Royce (RR) Trent XWB time limits manual (TLM) and the operator's existing approved aircraft maintenance program (AMP). Since the FAA issued AD 2021-15-01, the manufacturer has revised the TLM life limits and updated mandatory inspection intervals of certain critical rotating parts. This AD requires revisions to the ALS of the RR Trent XWB TLM and the operator's existing approved AMP, as specified in a European Union Aviation Safety Agency (EASA) AD, which is incorporated by reference. The FAA is issuing this AD to address the unsafe condition on these products.
2020-07-12: The FAA is adopting a new airworthiness directive (AD) for certain ATR--GIE Avions de Transport R(eacute)gional Model ATR42-500 airplanes. This AD was prompted by a report of interference between bonding braid screws and pitch tab control rods on the ATR final assembly line. This AD requires an inspection of the bonding braid screws for proper installation, a detailed inspection for damage to the pitch tab control rods if necessary, and replacement of the pitch tab control rods if necessary, as specified in a European Union Aviation Safety Agency (EASA) AD, which is incorporated by reference. The FAA is issuing this AD to address the unsafe condition on these products.
94-18-05: This amendment adopts a new airworthiness directive (AD), applicable to certain Saab Model SF340A and SAAB 340B series airplanes. This amendment requires inspections to detect discrepancies of certain main landing gear (MLG) retract actuator bracket retaining bolts; replacement of discrepant parts; installation of washers, if necessary; and eventual replacement of certain MLG retract actuator bracket retaining bolts and certain nose landing gear (NLG) trunnion pin cross bolts. This amendment is prompted by reports of extension and retraction problems on the MLG, due to loose retract actuator brackets on the MLG shock struts. The actions specified by this AD are intended to prevent a loose retract actuator bracket from interfering with the MLG shock strut trunnion support, which could result in the inability of the MLG to extend or retract.
2008-03-13: The FAA is adopting a new airworthiness directive (AD) for certain ATR Model ATR42-500 series airplanes. This AD requires removing metallized polyethylene terephtalate (MPET) insulation blankets installed on the left and the right sides of the airplane over frame 24 between stringers 5 and 14. This AD results from reports indicating that burnt spots were found on the MPET insulation blankets installed over frame 24. The actions specified by this AD are intended to ensure that MPET insulation blankets are removed over frame 24. Such MPET insulation blankets, if not removed, could propagate a small fire that is the result of an electrical arc and could lead to a much larger fire.
2020-08-01: The FAA is adopting a new airworthiness directive (AD) for certain General Electric Company (GE) CF34-1A, CF34-3A, CF34-3A1, CF34- 3A2, CF34-3B, and CF34-3B1 model turbofan engines. This AD was prompted by an in-flight failure of a fan blade that led to an in-flight shutdown. This AD requires removal and replacement of the affected fan blades. The FAA is issuing this AD to address the unsafe condition on these products.
2012-19-06: We are adopting a new airworthiness directive (AD) all Empresa Brasileira de Aeronautica S.A. (EMBRAER) Model EMB-135 airplanes, and Model EMB-145, -145ER, -145MR, -145LR, -145MP, and -145EP airplanes. This AD was prompted by a report of a lightning strike hitting an airplane tail boom causing certain rear bulkhead parts to jam an elevator control rod. This AD requires installing or reworking, as applicable, metallic diverters and aluminum sheets; modifying the light assembly on the tail boom rear movable fairing; and replacing the hood assembly with a new hood assembly and rerouting its electrical harness. We are issuing this AD to prevent lightning strikes from causing certain parts to contact the airplane pitch control system, which could reduce airplane controllability.
2008-03-14: 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: Due to pressurization loads, the fuselage frame of the emergency exit door could suffer from fatigue and develop cracks in its corners. The superseded Italian Airworthiness Directive (AD) 1995- 059 was issued to require modification of the emergency door frame in accordance with Piaggio (at the time I.A.M. Rinaldo Piaggio S.p.A.) Service Bulletin 80-0057 original issue. Parts necessary to carry out the modification were a new door pan assembly and a doubler; Since these parts are no longer available, Piaggio Aero Industries S.p.A. (PAI) designed new suitable part numbers introduced by Revision 1 of Service Bulletin 80-0057. The present AD mandates modification of the fuselage emergency door frame in accordance with Revision 1 of Service Bulletin 80-0057 from PAI. We are issuing this AD to require actions to correct the unsafe condition on these products.
94-18-06: This amendment adopts a new airworthiness directive (AD) that is applicable to Textron Lycoming LTS101 series turboshaft and LTP101 series turboprop engines. This action requires a one-time removal of 321 No. 2 bearings with serial numbers from suspect manufacturing lots, and replacement with serviceable parts. This amendment is prompted by reports of three in- service bearing failures. The actions specified in this AD are intended to prevent engine power loss and inflight engine shutdown due to No. 2 bearing failure, which could result in possible loss of the aircraft.
2001-14-09: This amendment adopts a new airworthiness directive (AD) that is applicable to certain Cessna Model 560XL airplanes. This action requires inspection of certain electrical wiring of the landing light switch, associated components, and the aft J-box fairing light relay wire for chafing, discoloration, or damage; rerouting of certain wiring; and corrective follow-on actions, if necessary. This action is necessary to prevent shorting to the ground of the electrical power due to chafing of wiring, which could result in electrical fire in the wiring of the landing light switch, associated components, and the wiring of the aft J-box fairing light relays. This action is intended to address the identified unsafe condition.
78-10-04: 78-10-04 AIRESEARCH MANUFACTURING COMPANY OF ARIZONA: Amendment 39-3216. Applies to AiResearch Model TSCP700-4B and -5 Auxiliary Power Units (APU's) which have first stage compressor disks P/N's 969600-1 or -2 installed, of the serial numbers listed. Disk Serial No. 7-03501-2503 7-03501-2531 7-03501-2504 7-03501-2532 7-03501-2506 7-03501-2538 7-03501-2507 7-03501-2545 7-03501-2510 7-03501-2546 7-03501-2511 7-03501-2548 7-03501-2513 7-03501-2549 7-03501-2514 7-03501-2558 7-03501-2519 7-03501-2582 7-03501-2522 7-03501-2588 7-03501-2523 7-03501-2599 7-03501-2526 7-03501-2606 7-03501-2527 7-03501-2619 7-03501-2718 7-03501-2529 7-03501-2743 Compliance required before accumulating a total of more than 3000 cycles on the first stage compressor disks, or within the next 300 cycles after the effective date of this AD, whichever occurs later, unless already accomplished: To prevent a high energy release of first stage compressorblades and disk parts due to the possible fatigue failure of the disk, accomplish the following: (a) Remove the first stage disk from the compressor section of the APU and replace with like serviceable part. (b) For the purposes of this AD: (1) A cycle is defined as a start and acceleration to at least 95% high pressure spool (N2) rpm followed by a shutdown, during which low pressure spool (N1) rpm reaches, or exceeds, 97% rpm nominal. If, in any start, operating and shutdown sequence, the low pressure spool (N1) is prevented from exceeding 91% rpm nominal, only one half of a cycle must be recorded. (2) Operators who have not kept a record of operating starts on individual disks may assume two starts have occurred for each recorded APU operating hour of service, or any other cycle per hour ratio approved by the operators' assigned FAA maintenance inspector, provided the request contains substantiating data to justify the alternative ratio. (3) Operators whohave not kept a record of APU operating hours of service shall estimate hours of APU operation equating APU operation to airplane hours time in service using a ratio approved by the operator's assigned FAA maintenance inspector and justified by substantiating data. NOTE: AiResearch Service Bulletin TSCP700-49-5016 dated April 25, 1978 refers to the same subject. This amendment becomes effective May 30, 1978.