Results
95-07-02: This amendment adopts a new airworthiness directive (AD), applicable to AlliedSignal Inc. (formerly Garrett Turbine Engine Company) TFE731-3 series turbofan engines, that requires the removal of suspect low pressure turbine (LPT) disks due to their susceptibility to creep fatigue. This amendment is prompted by reports of LPT disks that have separated through the disk web due to creep fatigue. The actions specified by this AD are intended to prevent an LPT disk web separation, which may result in an uncontained engine failure and damage to the aircraft.
2008-08-21: The FAA is superseding an existing airworthiness directive (AD), which applies to all EMBRAER Model ERJ 170-100 LR, -100 SE, -100 STD, and -100 SU airplanes; and Model ERJ 190-100 IGW, -100 LR, and - 100 STD airplanes. That AD currently requires revising the Limitations section of the airplane flight manual (AFM) to prohibit the flightcrew from moving the throttle into the forward thrust range immediately after applying the thrust reverser. This new AD adds additional airplanes to the applicability and requires the AFM revision for those additional airplanes. For certain airplanes, this AD also requires installing new, improved full-authority digital engine-control (FADEC) software. This AD results from a report that, during landing, the thrust reverser may not re-stow completely if the throttle lever is moved into the forward thrust range immediately after the thrust reverser is applied. We are issuing this AD to prevent the flightcrew from performing a takeoff with a partially deployed thrust reverser, which could result in reduced controllability of the airplane.
2001-16-05: This amendment supersedes an existing airworthiness directive (AD) that is applicable to Rolls-Royce plc. (RR) RB211 Trent 768-60, Trent 772-60, and Trent 772B-60 turbofan engines. That AD currently requires the removal of low pressure compressor (LPC) fan blades, initial and repetitive ultrasonic inspections for cracks in LPC fan blade dovetail roots, and if necessary, replacement with serviceable parts. This amendment requires earlier initial and more frequent repetitive ultrasonic inspections of LPC fan blades, with inspection thresholds and intervals specified by engine model. This amendment is prompted by data collected by RR, that identifies the need to inspect LPC fan blade dovetail roots at an earlier initial threshold and at more frequent intervals than is required by the existing AD. The actions specified in this AD are intended to prevent possible multiple LPC fan blade failures, which could result in an uncontained engine failure and damage to the airplane.
2020-15-03: The FAA is superseding Airworthiness Directive (AD) 2016-07-13 and AD 2018-03-22 which apply to certain GE Aviation Czech s.r.o. M601D-11, M601E-11, M601E-11A, M601E-11AS, M601E-11S, and M601F model turboprop engines. AD 2016-07-13 required inspection of the engine power turbine (PT) disk and, if found damaged, its replacement with a part eligible for installation. AD 2018-03-22 required the removal of certain engine PT disks identified by part number (P/N) installed on the affected engines. This AD requires an inspection of the engine PT disk and, if found damaged, its replacement with a part eligible for installation. This AD also requires the removal of certain engine PT disks identified by P/N installed on the affected engines. This AD was prompted by the discovery of damage to certain engine PT disks and a review by the manufacturer that determined that certain engine PT rotors have less overspeed margin than originally declared during product certification. This AD was also prompted by the manufacturer identifying additional P/Ns and serial numbers (S/Ns) of engine PT disks affected by damage or non-conformity since publishing AD 2016-07- 13 and AD 2018-03-22. The FAA is issuing this AD to address the unsafe condition on these products.
95-07-03: This amendment adopts a new airworthiness directive (AD), applicable to AlliedSignal Aerospace (formerly Garrett Auxiliary Power Division and Garrett Turbine Engine Co.) GTCP85 series auxiliary power units (APU), that requires modifying the APU to install an exhaust centerbody. This amendment is prompted by reports of two uncontained APU failures where turbine wheel fragments exited the APU exhaust axially and damaged the aircraft. The actions specified by this AD are intended to prevent an axially uncontained APU failure and damage to the aircraft.
2008-08-16: The FAA is superseding an existing airworthiness directive (AD) for Turbomeca Makila 1A, 1A1, and 1A2 turboshaft engines. That AD currently requires replacing certain digital electronic control units (DECUs) and electronic control units (ECUs) with modified DECUs and ECUs. This AD applies only to Makila 1A and 1A1 turboshaft engines, and requires replacing the selector-comparator board in the ECU with a board incorporating Turbomeca modification TU 250. This AD results from recent unexplained reversions of the ECU to the 65% N1 back-up mode. We are issuing this AD to prevent dual-engine continued operation at 65% N1 after reversion of the ECU to the 65% N1 back-up mode due to temporary loss of N2 speed signal, which could lead to inability to continue safe flight, emergency autorotation landing, or an accident.
2018-19-19: We are adopting a new airworthiness directive (AD) for all Airbus SAS Model A350-941 airplanes. This AD was prompted by a report of an overheat failure mode of the hydraulic engine-driven pump, which could cause a fast temperature rise of the hydraulic fluid. This AD requires modifying the hydraulic monitoring and control application (HMCA) software. We are issuing this AD to address the unsafe condition on these products. [[Page 48204]]
2005-02-08: The FAA is adopting a new airworthiness directive (AD) for certain McDonnell Douglas Model MD-11 and MD-11F airplanes. This AD requires inspecting the power feeder cables of the auxiliary power unit (APU) for chafing damage, and accomplishing any related corrective action. This AD also requires modifying the drain line of the fuel feed shroud of the horizontal stabilizer. This AD is prompted by a report of the drain line of the fuel feed shroud riding on the power feeder cables of the APU. We are issuing this AD to prevent chafing of the power feeder cables of the APU, which could result in electrical arcing to adjacent structure and consequent fire in the airplane.
2001-16-02: This amendment adopts a new airworthiness directive (AD), applicable to certain Boeing Model 747 series airplanes, that requires repetitive inspections to find cracking of the frame web, strap, inner chords, and inner chord angle of the forward edge frame of the number 5 main entry door cutout, and repair, if necessary. These actions are necessary to find and fix such cracking, which could result in severing of the frame, inability of the edge frame to react door stop loads, and consequent rapid depressurization of the airplane. This action is intended to address the identified unsafe condition.
94-26-07: This document publishes in the Federal Register an amendment adopting Airworthiness Directive (AD) 94-26-07 that was sent previously to all known U.S. owners and operators of AlliedSignal Inc. TPE331 series turboprop engines by individual letters. This AD requires an amendment to the Emergency Procedures section of the applicable FAA Approved Airplane Flight Manual (AFM) for each applicable engine installation in an aircraft, and initial and repetitive dimensional inspections of the fuel control drive shaft splines for wear, or replacing the affected fuel controls with alternate fuel controls. This amendment is prompted by reports of excessive wear of the internal fuel control drive splines in fuel controls, which can result in loss of fuel control governor drive. The actions specified by this AD are intended to prevent an uncontained engine failure, damage to the aircraft, or loss of aircraft control.
95-02-17: This document publishes in the Federal Register an amendment adopting Airworthiness Directive (AD) 95-02-17, which was sent previously to known U.S. owners and operators of certain Beech Aircraft Corporation Model 1900D airplanes. This AD requires inspecting (one-time) the elevator trim tab control cables at the top of the vertical stabilizer to ensure that cables (at the left, right, and crossover pulleys) are correctly routed around the pulleys, within the cable guide pins, and are not contacting any structure; and replacing any cable that is incorrectly routed or chafed. The actions specified by this AD are intended to prevent in-flight separation of the elevator trim tab control cable caused by misrouting, which could result in loss of control of the airplane.
2008-06-28 R1: The FAA is adopting a new airworthiness directive (AD) to revise AD 2008-06-28, which applies to certain Avidyne Corporation (Avidyne) Primary Flight Displays (PFDs) (Part Numbers (P/Ns) 700- 00006-000, -001, -002, -003, and -100) that are installed on airplanes. AD 2008-06-28 currently requires you to do a check of the maintenance records and inspection of the PFD (if necessary) to determine if an affected serial number PFD is installed. If an affected serial number PFD is installed, this AD requires you to incorporate information that limits operation when certain conditions for the PFD or backup instruments exist. Since we issued AD 2008-06-28, we have learned that there is an incorrect serial number (SN) listed in AD 2008-06-28. Consequently, this AD retains the actions of AD 2008-06-28 and corrects the incorrect serial number. We are issuing this AD to prevent certain conditions from existing when PFDs display incorrect attitude, altitude, and airspeed information. This could result in airspeed/ altitude mismanagement or spatial disorientation of the pilot with consequent loss of airplane control, inadequate traffic separation, or controlled flight into terrain.
2001-15-30: This amendment adopts a new airworthiness directive (AD), applicable to certain BAE Systems (Operations) Limited Model Avro 146-RJ series airplanes, that requires inspection to detect incorrect wiring of the fire extinguisher bottles located on the engines and on the auxiliary power unit (APU), and corrective action, as necessary. It also requires modification of the wiring of the fire extinguisher bottles located on the engines and on the APU. This amendment is prompted by reports of incorrect wiring of the fire extinguisher bottles on the engines and the APU discovered during routine maintenance. The actions specified by this AD are intended to prevent failure of the fire extinguisher bottles to discharge, which could result in the inability to extinguish a fire in the engines or in the APU.
2001-16-01: This amendment adopts a new airworthiness directive (AD) that is applicable to certain Airbus Model A330-301, -321, -322, -341, and - 342 series airplanes, and certain Model A340 series airplanes. This action requires repetitive inspections to detect cracking of the aft cargo compartment door, and corrective action if necessary. This action also provides for optional terminating action for the repetitive inspections. This action is necessary to detect and correct cracking of the aft cargo compartment door, which could result in reduced structural integrity of the airplane. This action is intended to address the identified unsafe condition.
2001-15-21: This amendment adopts a new airworthiness directive (AD), applicable to certain Airbus Model A300 B2 and B4; A310; and A300 B4-600, B4-600R, and F4-600R (collectively called A300-600) series airplanes; that requires modification of certain components related to the fuel level sensors. This action is necessary to prevent the possibility of overheating of the fuel level sensors, which could lead to the risk of explosion in the fuel tank. This action is intended to address the identified unsafe condition.
2020-14-03: The FAA is adopting a new airworthiness directive (AD) for all The Boeing Company Model 737-300, -400, and -500 series airplanes. This AD was prompted by a report that a crack indication consistent with fatigue cracking was found on the left nacelle support overwing fitting flange fastener hole during teardown of a Model 737-300 series airplane. This AD requires a general visual inspection of the strut to wing diagonal brace at a certain location for cracking. For certain airplanes, this AD also requires an ultrasonic inspection of the nacelle support overwing fitting at certain fastener locations for cracking. For certain other airplanes, this AD requires a magnetic check of the nacelle support overwing fitting at a certain location to determine the material composition. This AD requires applicable on- condition actions. The FAA is issuing this AD to address the unsafe condition on these products.
2018-16-13: We are adopting a new airworthiness directive (AD) for certain Zodiac Seats France, 537-Series Cabin Attendant Seats. This AD was prompted by operator reports that safety belt wear was found at the attachment to the cabin attendant seat. This AD requires inspecting the safety belt webbing, and modifying and re-marking each affected cabin attendant seat. We are issuing this AD to address the unsafe condition on these products.
95-06-06: This amendment adopts a new airworthiness directive (AD), applicable to certain McDonnell Douglas Model DC-9, DC-9-80, and C-9 (military) series airplanes and Model MD-88 airplanes, that requires a visual inspection to verify proper installation of the wire termination lugs on the ignition selector switch, and removal and correct installation of any improperly installed wire termination lugs. This amendment also requires application of sealant to the wire termination lugs and the attachment screws. This amendment is prompted by a report that, during the manufacturer's production flight testing, an abnormal engine start valve open annunciation for engine No. 2 occurred and resulted in an uncontained failure of the engine starter. The actions specified by this AD are intended to prevent damage to the engine cowling, damage to adjacent engine components, and possible fire in the cowling, due to an uncontained failure of the engine starter.
2008-08-14: This document publishes in the Federal Register an amendment adopting emergency airworthiness directive (AD) 2008-06-51 that was sent previously to all known U.S. owners and operators of Lycoming Engines IO, (L)IO, TIO, (L)TIO, AEIO, AIO, IGO, IVO, and HIO series reciprocating engines, TCM TSIO-360-RB reciprocating engines, and Superior Air Parts, Inc. IO-360 series reciprocating engines with certain Precision Airmotive LLC RSA-5 and RSA-10 series fuel injection servos. This AD results from eighteen reports of fuel injection servo plugs, part number (P/N) 383493, that had loosened or completely backed out of the threaded plug hole on the regulator cover of the fuel injection servo. These servo plugs were installed with servo plug gasket, P/N 365533, under the plug hex-head. We are issuing this AD to prevent a lean running engine, which could result in a substantial loss of engine power and subsequent loss of control of the airplane.
2001-15-33: This amendment supersedes an existing airworthiness directive (AD), applicable to all BAe Systems (Operations) Limited Model BAe 146 and Model Avro 146-RJ series airplanes, that currently requires a one-time inspection for "drill marks" and corrosion on the underside of the wing top skin, and corrective actions, if necessary. For certain airplanes, this amendment requires repetitive inspections for "drill marks" or corrosion on the underside of the wing top skin, and corrective actions, if necessary, until all corrective actions and protective treatment actions are done. For certain airplanes, this amendment adds a requirement for one-time detailed and borescopic inspections of the fuel tank, pump, and stringers for paint debris and inadequacy of the existing protective treatment coating; and corrective actions, if necessary. This amendment is prompted by issuance of mandatory continuing airworthiness information by a foreign civil airworthiness authority. The actions specified by this AD are intended to prevent corrosion from developing on the underside of the top skin of the center wing, which could result in reduced structural integrity of the airplane.
2010-04-06: 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: An in-flight engine shutdown incident was reported on an aircraft equipped with a TAE 125-01 engine. This was found to be mainly the result of a blockage of the scavenge oil gear pump due to a broken axial bearing of the turbocharger. The broken parts were sucked into the oil pump and caused seizure. With the pump inoperative, the separator overfilled, causing the engine oil to escape via the breather vent line. This caused a loss of oil that resulted in the engine overheating and subsequent shutdown. We are issuing this AD to prevent engine in-flight shutdown, possibly resulting in reduced control of the aircraft.
2001-15-24: This amendment adopts a new airworthiness directive (AD), applicable to certain Bombardier Model CL-600-2B16 series airplanes, that requires modification of the wiring for the internal fuel/defuel panel. The actions specified by this AD are intended to prevent the loss of engine and fuel indications essential for safe flight and landing. This action is intended to address the identified unsafe condition.
95-06-05: This amendment adopts a new airworthiness directive (AD) that is applicable to certain Boeing Model 737-200 and -300 series airplanes. This action requires inspections to detect cracking of the fuselage frames at certain locations below the lower jamb of the upper deck main cargo door, and repair, if necessary. This amendment is prompted by reports of fatigue cracking in the fuselage frames at these locations. The actions specified in this AD are intended to prevent rapid decompression of the airplane due to fatigue cracking in the fuselage frames of the main deck cargo door.
2008-08-04: The FAA is superseding an existing airworthiness directive (AD), which applies to certain Airbus Model A318, A319, A320, and A321 airplanes. That AD currently requires repetitive inspections for cracking in the forward lug of the support rib 5 fitting of both main landing gear (MLG), and repair if necessary. The existing AD also provides optional terminating actions for certain airplanes, as well as other optional methods for complying with the inspection requirements of the existing AD. This new AD continues to require repetitive inspections for cracking in the forward lug of the support rib 5 fitting of the left and right MLG at new repetitive intervals in accordance with new service information, and repair or replacement of any cracked MLG fitting if necessary. This new AD also requires modification of the rib bushings of the left and right MLG, which would end the repetitive inspections. This AD results from cracks found in the forward lug of the MLG support rib 5 fitting.We are issuing this AD to prevent cracking in the forward lug of the MLG, which could result in failure of the lug and consequent collapse of the MLG during takeoff or landing.
2020-12-12: The FAA is adopting a new airworthiness directive (AD) for all Yabor(atilde) Ind(uacute)stria Aeron(aacute)utica S.A. Model ERJ 170 airplanes and Model ERJ 190-100 STD, -100 LR, -100 ECJ, -100 IGW, -200 STD, -200 LR, and -200 IGW airplanes. This AD was prompted by reports of cracks discovered on the engine pylon inboard lower link lugs. This AD requires repetitive detailed inspections of the engine inboard and outboard engine pylon lower link lugs for cracking, and repair if necessary, as specified in an Ag(ecirc)ncia Nacional de Avia(ccedil)(atilde)o Civil (ANAC) AD, which is incorporated by reference. The FAA is issuing this AD to address the unsafe condition on these products.