Results
2003-18-04: The FAA is adopting a new airworthiness directive (AD) for Wytwornia Sprzetu Komunikacyjnego (WSK) PZL-10W turboshaft engines. This AD requires a one-time inspection of the four engine-to-gearbox pin retaining joints for loose or improperly crimped retaining nuts and damaged bolts on certain serial number engines. This AD is prompted by reports of loose or improperly crimped engine-to-gearbox pin joint retaining nuts found during overhaul. We are issuing this AD to prevent loss of nut torque and loosening of engine-to-gearbox pin joint retaining nuts, which could result in misalignment of the engine to the gearbox, causing loss of drive to the gearbox, power turbine overspeed, and uncontained power turbine disc failure.
2020-14-07: The FAA is adopting a new airworthiness directive (AD) for all Austro Engine GmbH model E4 and E4P diesel piston engines. This AD was prompted by reports of considerable wear of the timing chain and failure of fuel injectors on these engines. This AD requires replacement of the timing chain and fuel injectors on the affected Austro Engine GmbH model E4 and E4P diesel piston engines. The FAA is issuing this AD to address the unsafe condition on these products.
2001-08-19: This amendment adopts a new airworthiness directive (AD), applicable to certain McDonnell Douglas Model DC-8 series airplanes, that requires replacing certain transformer ballast assemblies in the first officer's console and electrical power center with certain new, improved ballast assemblies. This action is necessary to prevent overheating of ballast transformers due to high power demands resulting from aging, which could result in smoke in the cockpit. This action is intended to address the identified unsafe condition
2017-22-07: We are adopting a new airworthiness directive (AD) for certain Airbus Model A319 series airplanes; Model A320-211, -212, -214, -231, - 232, and -233 airplanes; and Model A321-111, -112, -131, -211, -212, - 213, -231, and -232 airplanes. This AD was prompted by a report of cracks on frame forks and outer skin on the forward and aft cargo compartment doors. This AD requires repetitive inspections of the frame forks, and corrective actions if necessary. This AD also includes optional modifications that constitute terminating action. We are issuing this AD to address the unsafe condition on these products.
94-04-16: This amendment adopts a new airworthiness directive (AD) that applies to certain Mitsubishi Heavy Industries, Ltd., (Mitsubishi) MU-2B series airplanes. This action requires reducing the maximum deflection of the elevator nose-down trim to a 1-degree to 3-degree range. Analysis of service history on the affected airplanes has revealed one accident and two incidents where the existing elevator nose-down trim deflection caused excessive control wheel force. The actions specified by this AD are intended to prevent excessive control wheel force caused by extreme elevator nose-down trim deflection, which could result in loss of control of the airplane.
2007-21-05: The FAA is adopting a new airworthiness directive (AD) for International Aero Engines (IAE) V2500 series turbofan engines. This AD requires repetitive monitoring of N2 vibration on all IAE V2500 series engines to identify engines that might have a cracked high pressure turbine (HPT) stage 2 air seal. This AD results from a report that HPT stage 2 air seals have developed cracks. We are issuing this AD to prevent uncontained failure of the HPT stage 2 air seal.
2001-08-11: This amendment supersedes an existing airworthiness directive (AD), applicable to all Aerospatiale Model ATR42-300 and -320 series airplanes, that currently requires repetitive ultrasonic inspections to detect cracking of certain lugs on the main landing gear (MLG), replacement of cracked lugs with new or serviceable parts, and a follow-on inspection; and provides for an optional terminating action for the repetitive inspections. This amendment removes that terminating action and requires new repetitive inspections of the rubber sealant to detect shearing, and corrective action, if necessary. This action also requires new one-time visual and fluorescent penetrant inspections to detect discrepancies of certain lugs, and refurbishment of the MLG barrel and swing lever assemblies, which terminates the requirements of this AD. This action also revises the applicability of the existing AD. This amendment is prompted by issuance of mandatory continuing airworthiness informationby a foreign civil airworthiness authority. The actions specified by this AD are intended to prevent discrepancies of the MLG barrel lower lugs, which could result in reduced structural integrity and possible collapse of the MLG. The incorporation by reference of certain publications listed in the regulations is approved by the Director of the Federal Register as of May 31, 2001. The incorporation by reference of certain other publications listed in the regulations was approved previously by the Director of the Federal Register as of March 7, 1997 (62 FR 7665, February 20, 1997).
2018-06-51: We are publishing a new airworthiness directive (AD) for Agusta S.p.A. Model A109A, A109A II, A109C, A109E, A109K2, A109S, A119, AW109SP, and AW119 MKII helicopters. This AD requires removing a certain swashplate support (support) from service. This AD is prompted by an error in a parts catalog incorrectly identifying the support as approved for installation on Model AW109SP helicopters. We are issuing this AD to address the unsafe condition on these products.
2004-20-13: This amendment adopts a new airworthiness directive (AD), applicable to certain EMBRAER Model EMB-135 and EMB-145 series airplanes, that requires inspection of the housings of the main landing gear (MLG) leg strut bushings, and related investigative and corrective actions, and other specified actions. The actions specified by this AD are intended to prevent corrosion of the housings of the MLG leg strut bushings and consequent failure of the MLG. This action is intended to address the identified unsafe condition.
2001-08-20: This amendment adopts a new airworthiness directive (AD), applicable to certain McDonnell Douglas Model DC-8 series airplanes, that requires replacing the toilet flushing circuit breakers of the lavatory with new circuit breakers, and marking applicable nameplates. This action is necessary to prevent overheating of the flush pump motor, which could result in damage to the flush pump motor cover, and consequent smoke in the lavatory area. This action is intended to address the identified unsafe condition.