Results
2004-09-14: This amendment supersedes an existing airworthiness directive (AD), applicable to certain Boeing Model 767 series airplanes powered by General Electric or Pratt & Whitney engines, that currently requires repetitive inspections to detect discrepancies of the four aft-most fastener holes in the horizontal tangs of the midspar fitting of the strut, and corrective actions, if necessary. That AD also provides an optional terminating action for repetitive inspections. This amendment expands the area on which the inspections are required. The actions specified by this AD are intended to prevent fatigue cracking in the primary strut structure and reduced structural integrity of the strut, which could result in separation of the strut and engine. This action is intended to address the identified unsafe condition.
59-10-03: 59-10-03 CESSNA: Applies to Cessna Models 172, Serial Numbers 28000 Through 36003; 180, 180A, Serial Numbers 30000 Through 32991; 182, 182A, Serial Numbers 33000 Through 34500. Compliance required by July 15, 1959. The Narco Model 300 position light flasher is of non-fail-safe design and to comply with the Civil Air Regulations a three position switch should be installed to permit steady operation of the lights in case of flasher failure. In addition, a means should be provided to enable the pilot to tell when the flasher has failed. Plexiglas reflectors at the wing tip lights or a monitor light on the instrument panel are acceptable means. The Van Dusen flasher (Cessna P/N 0511309-1) is acceptable as a fail-safe design. (Cessna Service Letter 180/182-41 covers this same subject.)
98-12-21: This amendment adopts a new airworthiness directive (AD), applicable to Eurocopter France Model SA. 315B helicopters that requires an initial and repetitive visual inspections and modification, if necessary, of the horizontal stabilizer spar tube (spar tube). This amendment is prompted by an in-service report of fatigue cracks that initiated from corrosion pits. The actions specified by this AD are intended to prevent fatigue failure of the spar tube, separation and impact of the horizontal stabilizer with the main or tail rotor and subsequent loss of control of the helicopter.
2004-09-18: This amendment adopts a new airworthiness directive (AD), applicable to all BAE Systems (Operations) Limited (Jetstream) Model 4101 airplanes, that requires repetitively inspecting the seat rails located in the passenger cabin for evidence of damage and corrosion, repairing any damage or corrosion, and replacing any floor panels found to be "soft" due to ingress of moisture. This action is necessary to detect and correct corrosion on the seat rails for the passenger seats, which could result in the reduced structural integrity of the passenger seats, detachment of the seats from the seat rails, and injury to passengers. This action is intended to address the identified unsafe condition.
69-23-05: 69-23-05 MESSERSCHMITT-BOLKOW Gmb.H.: Amdt. 39-873. Applies to Bolkow Model Bolkow Junior Aircraft, Serial Numbers 505 through 684. Compliance is required as indicated unless already accomplished. To prevent failures of the lower engine-mounting bolts within the next 100 hours' time in service after the effective date of this AD, replace the lower engine-mounting bolts P/N 298-21093.22 with new bolts P/N 208- 21093.22 in accordance with Messerschmitt-Bolkow Mounting Instructions No. 04/68, dated October, 1968, or an FAA-approved equivalent (Messerschmitt-Bolkow Service Bulletin No. 208-1/68, dated November 14, 1968, covers this same subject). This amendment becomes effective December 11, 1969.
2021-19-02: The FAA is adopting a new airworthiness directive (AD) for all Airbus Helicopters Model EC130B4 and EC130T2 helicopters. This AD was prompted by a report of a jammed pilot collective pitch lever (collective). This AD requires inspecting the collective for proper engagement of the locking pin. The FAA is issuing this AD to address the unsafe condition on these products.
58-02-03: 58-02-03 HILLER: Applies to UH-12 Series Helicopters Equipped With Marvel- Schebler Automatic Altitude Compensating Carburetor Model MA-4-5AA (Aircooled P/N 19588). Compliance required by June 1, 1958. With a Marvel-Schebler Model MA-4-5AA carburetor installed, it is possible to start and run the engine with the carburetor mixture control in the idle cutoff position if the throttle is partially or fully opened. However, as soon as the throttle is fully closed, the idle cutoff will operate and shut off the engine. Therefore, it would be possible to start the engine, take off, and fly with the mixture in idle cutoff, as long as the throttle is never closed. The first time the throttle is closed, however, as in autorotation, an immediate engine stoppage would occur. To prevent inadvertent engine stoppage in flight due to failure to place the carburetor mixture control in the "ALT.COMP" position before takeoff, the following measure is necessary: Delete the carburetor mixture control from the cockpit and secure the carburetor setting at "ALT.COMP" at the carburetor. Hiller will issue a service bulletin covering this subject. Appropriate FAA approved Helicopter Flight Manual revision required.
2021-19-16: The FAA is superseding Airworthiness Directive (AD) 2021-16- 02, which applied to certain Airbus Helicopters Model SA330J, AS332C, AS332L, AS332L1, AS332L2, and EC225LP helicopters. AD 2021-16-02 required inspecting the locking safety mechanism of the left-hand (LH) side stairway door handle and depending on the results, corrective action. AD 2021-16-02 also required modifying that locking safety mechanism. This AD retains the requirements in AD 2021-16-02, as specified in a European Union Aviation Safety Agency (EASA) AD, which is incorporated by reference, and clarifies a certain exception. This AD was prompted by the need to clarify that exception. The FAA is issuing this AD to address the unsafe condition on these products.
98-12-07: This amendment supersedes an existing airworthiness directive (AD), applicable to Pratt & Whitney JT8D series engines, that currently requires a determination of the utilization rate and coating type of the 7th, 8th, 9th, 10th, 11th, and 12th stage high pressure compressor (HPC) disks, and removal, inspection for corrosion, and recoating of those HPC disks based on utilization rate. This amendment shortens the inspection interval for certain low utilization disks. This amendment is prompted by reports of an additional uncontained 9th stage HPC disk failure due to corrosion pitting. The actions specified by this AD are intended to prevent fracture of the HPC disks, which can result in uncontained release of engine fragments, inflight engine shutdown, and airframe damage. The incorporation by reference of Pratt & Whitney Alert Service Bulletin No. 6038, Revision 5, dated August 17, 1994, as listed in the regulations, was approved previously by the Director of the Federal Register as of November 28, 1994 (59 FR 49175, September 27, 1994).
2021-19-05: The FAA is adopting a new airworthiness directive (AD) for all Leonardo S.p.a. Model AB412 and AB412 EP helicopters. This AD was prompted by a report of a cracked hoist support assembly having a certain part number. This AD requires a one-time inspection of the hoist support assembly and, depending on the findings, replacement with a serviceable part, as specified in a European Union Aviation Safety Agency (EASA) Emergency AD, which is incorporated by reference. The FAA is issuing this AD to address the unsafe condition on these products.