Results
2018-07-03: We are superseding Airworthiness Directive (AD) 2018-02-05 for certain Piper Aircraft, Inc. Models PA-28-140, PA-28-150, PA-28-151, PA-28-160, PA-28-161, PA-28-180, PA-28-181, PA-28-236, PA-28-201T, PA- 28R-180, PA-28R-200, PA-28R-201, PA-28R-201T, PA-28RT-201, and PA-28RT- 201T airplanes. AD 2018-02- [[Page 14569]] 05 required inspecting the fuel tank selector cover to verify the left and right fuel tank selector placards are located at the proper positions and replacing those that are improperly located with new placards. This AD addresses the same unsafe condition and requires the same actions as AD 2018-02-05, but changes the inspection of the fuel tank selector cover to a preflight check and allows for various fuel selector clocking configurations. This AD was prompted by our determination to allow the owner/operator (pilot) holding at least a private pilot certificate to perform the preflight check. We are issuing this AD to allow the pilot to do a preflight check of the fuel selector placards.
2013-18-06: We are adopting a new airworthiness directive (AD) for Bell Model 206A, 206B, 206L, 206L-1, 206L-3, 206L-4, 222, 222B, 222U, 230, 407, 427, and 430 helicopters. This AD requires inspecting each bearing to determine if it has been properly staked and replacing the bearing or assembly if it has not been properly staked. This AD was prompted by bearings not being properly staked and migrating out of their proper position, which may limit the functionality of the affected part. The actions of this AD are intended to prevent failure of a bearing and the assembly in which it is installed and subsequent loss of control of the helicopter.
2003-11-18: This amendment supersedes an existing airworthiness directive (AD), that is applicable to Pratt and Whitney (PW) model 4000 series turbofan engines. That AD currently requires interim actions to address engine takeoff power loss events until the high-pressure-compressor (HPC) case is redesigned and available for incorporation on the PW4000 engines. This amendment requires the same actions as that AD, adds on-wing Testing-21 to engines installed on Boeing 747 and MD-11 airplanes, and adds the requirement to install a new Ring Case Configuration (RCC) rear HPC on engines installed in the Boeing fleet as terminating action to the requirements of this AD. This amendment is prompted by the development of an RCC rear HPC for PW4000 series turbofan engines installed in the Boeing fleet. The actions specified by this AD are intended to prevent engine takeoff power losses due to HPC surge.
2013-18-03: We are adopting a new airworthiness directive (AD) for certain Bell Helicopter Textron Canada Inc. (BHT) Model 206A, 206B, and 206L helicopters. This AD requires replacing certain part-numbered engine auto-relight kit control boxes. This AD was prompted by a design review that revealed the control box chipset did not meet the required temperature range requirements, which could cause the control box to malfunction, disabling the engine auto-relight system. The actions of this AD are intended to prevent a disabled auto-relight system, failure of the engine to relight after a flame-out, increased pilot workload during a power loss emergency, and subsequent loss of control of the helicopter.
97-09-04: This amendment adopts a new airworthiness directive (AD), applicable to certain Airbus Industrie Model A320, A321, A330, and A340 series airplanes, that requires repetitive testing of certain fire shutoff valves (FSOV) on the left and right engines, repetitive checks of certain parts on the FSOV motors, and replacement of discrepant valves with modified valves. This amendment also requires modification of FSOV seals and motors as terminating action for the repetitive testing and check requirements. This amendment is prompted by reports indicating that FSOV s are not closing completely during maintenance testing. The actions specified by this AD are intended to prevent the flow of hydraulic fluid to the engine in the event of fire which, if not corrected, would fuel the fire, and lead to the loss of fluid in associated hydraulic systems, causing those systems to fail.
98-03-03: This amendment adopts a new airworthiness directive (AD), applicable to certain Airbus Model A330 and A340 series airplanes. This action requires a one-time inspection of the free-fall actuators of the landing gear for discrepancies, and replacement of discrepant actuators with new, improved actuators. This action also requires eventual replacement of certain free-fall actuators. This amendment is prompted by the issuance of mandatory continuing airworthiness information by a foreign civil airworthiness authority. The actions specified by this AD are intended to prevent electrical short circuits to the free-fall actuators of the landing gear, which could result in failure to extend the landing gear, and consequent damage to the airplane structure during landing.
98-24-22: This amendment adopts a new airworthiness directive (AD) that is applicable to Agusta A109C helicopters. This action requires, within the next 5 hours time-in-service (TIS), replacing the tail rotor blade grip assemblies (grip assemblies) with modified airworthy grip assemblies. This amendment is prompted by cracks that were found on the grip assemblies during maintenance inspections. This condition, if not corrected, could result in separation of a tail rotor blade and subsequent loss of control of the helicopter.
2021-11-24: The FAA is adopting a new airworthiness directive (AD) for certain The Boeing Company Model 737-600, -700, -700C, -800, -900, and -900ER series airplanes. This AD was prompted by significant changes made to the airworthiness limitations (AWLs) related to fuel tank ignition prevention and the nitrogen generation system (NGS). This AD requires revising the existing maintenance or inspection program, as applicable, to incorporate the April 2019 or November 2020 revision of the airworthiness limitations document. The FAA is issuing this AD to address the unsafe condition on these products.
97-15-02: This amendment adopts a new airworthiness directive (AD), applicable to all Aerospatiale Model ATR42 and ATR72 series airplanes, that requires replacement of the attachment clips on the wing-to-fuselage fairings and on the upper cowlings of the engine nacelle with new improved attachment clips, and adding cup washers on the wing-to-fuselage fairing panels on certain airplanes. This amendment also requires a one-time inspection of certain fairings and the upper cowlings of the engine nacelle to detect discrepancies of the attachment hardware and the fairing panel; and replacement of the panel with a serviceable panel, if necessary. This amendment is prompted by a report of deformed attachment clips found on the wing-to-fuselage fairings and on the upper cowlings of the engine nacelle, and by a report of severe inflight vibration due to a loose wing/body fairing panel. The actions specified by this AD are intended to prevent deformation of the attachment clips due to insufficient strength of the attachment clip material. Such deformation of the attachment clips could result in the fairings and cowlings detaching from the airplane during flight and subsequently causing damage to the empennage or posing a hazard to persons or property on the ground.
2018-06-10: We are adopting a new airworthiness directive (AD) for certain Honda Aircraft Company LLC Model HA-420 airplanes. This AD requires incorporating a temporary revision into the airplane flight manual and replacing faulty power brake valves upon condition. This AD was prompted by reports of unannunciated asymmetric braking during ground operations and landing deceleration. We are issuing this AD to address the unsafe condition on these products.