Results
2023-20-06: The FAA is adopting a new airworthiness directive (AD) for certain Airbus SAS Model A330-202, A330-203, A330-223, A330-243, and A330-841 airplanes. This AD was prompted by a determination that the cold working process was partially completed on a certain circumferential joint. This AD requires modification of the circumferential joint, 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.
2023-20-05: The FAA is superseding Airworthiness Directive (AD) 2020-03- 24, which applied to certain Dassault Aviation Model MYSTERE-FALCON 20- C5, 20-D5, 20-E5, and 20-F5 airplanes. AD 2020-03-24 required revising the existing maintenance or inspection program, as applicable, to incorporate new or more restrictive airworthiness limitations. This AD was prompted by a determination that new or more restrictive airworthiness limitations are necessary. This AD continues to require the actions in AD 2020-03-24 and requires revising the existing maintenance or inspection program, as applicable, to incorporate new or more restrictive airworthiness limitations 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.
2002-15-07: This amendment adopts a new airworthiness directive (AD) for MD Helicopters, Inc., Model MD900 helicopters that requires, for the lateral-mixer bellcrank assembly (bellcrank), establishing a life limit, creating a component history card or equivalent record, determining the hours time-in-service (TIS), and applying a serial number (S/N). This amendment is prompted by additional testing that revealed that the original load test to establish the life limits of the bellcrank did not accurately represent the actual loading. The actions specified by this AD are intended to prevent fatigue failure of the bellcrank and subsequent loss of lateral control of the helicopter.
94-23-10: This amendment supersedes an existing AD that currently requires periodic leak checks of the forward lavatory drain system and provides for the installation of a new drain valve as terminating action. This action continues to require various leak checks, but deletes a previously provided terminating action; adds requirements for leak checks of other lavatory drain systems; provides for the option of revising the FAA-approved maintenance program to include a schedule of leak checks; requires the installation of a cap on the flush/fill line; and requires either a periodic leak check of the flush/fill line cap or replacement of the seals on both that cap and the toilet tank anti-siphon (check) valve. This amendment was prompted by continuing reports of damage to engines and airframes, separation of engines from airplanes, and damage to property on the ground, caused by "blue ice" that had formed from leaking forward lavatory drain systems and subsequently had dislodged fromthe airplane. The actions specified by this AD are intended to prevent such damage associated with the problems of "blue ice."
2023-20-08: The FAA is adopting a new airworthiness directive (AD) for certain General Electric Company (GE) Model CF6-80C2B1F, CF6-80C2B2F, CF6-80C2B4F, CF6-80C2B5F, CF6-80C2B6F, CF6-80C2B7F, and CF6-80C2K1F engines. This AD was prompted by an uncontained engine fire and consequent manufacturer investigation, which revealed that certain bearings were installed improperly. This AD requires inspection of the magnetic chip detector (MCD) probe tip for metallic particles and, if necessary, removal of the engine from service. The FAA is issuing this AD to address the unsafe condition on these products.
94-23-08: This amendment adopts a new airworthiness directive (AD), applicable to all Jetstream Model HS 748 Series 2A and 2B airplanes. This action requires repetitive replacement of the structurally significant items (SSI) on the nose landing gear (NLG) and main landing gear (MLG) with serviceable SSI's. This amendment is prompted by fatigue testing which revealed that the SSI's on the NLG and the MLG have a limited service life. The actions specified in this AD are intended to ensure the replacement of the SSI's that have reached the maximum life limit; SSI's that are not replaced could fail and lead to the failure of the NLG and MLG during taxi, take-off, or landing.
2017-26-06: We are adopting a new airworthiness directive (AD) for certain Rolls-Royce Corporation (RRC) AE 3007A and AE 3007C model turbofan engines. This AD was prompted by an updated analysis that lowered the life limit of fan wheels installed on the affected engines. This AD requires removal of the affected fan wheel at new, lower life limits. We are issuing this AD to address the unsafe condition on these products.
94-24-04: This amendment adopts a new airworthiness directive (AD) that is applicable to McDonnell Douglas Helicopter Systems and Hughes Helicopters, Inc. Model 369D, E, F, and FF series helicopters. This action requires an initial inspection of the pitch control assembly lockwasher (lockwasher) for dents at the inner tang inside radius, application of a torque stripe on the tail rotor swashplate and locknut, and repetitive inspections of the torque stripe to detect any locknut slippage. This amendment is prompted by a report that a lockwasher failed in service and allowed a locknut to loosen. The actions specified in this AD are intended to prevent failure of the inner tang of the lockwasher, loss of the locknut, disengagement of the pitch control assembly, loss of tail rotor control, and subsequent loss of control of the helicopter.
2023-19-02: The FAA is superseding Airworthiness Directive (AD) 2018-21- 11, which applied to all Pratt & Whitney Division (PW) Model PW4074D, PW4077D, PW4084D, PW4090, and PW4090-3 engines with a low-pressure compressor (LPC) fan hub, part number (P/N) 51B821 or P/N 52B521, installed. AD 2018-21-11 required performing repetitive eddy current inspections (ECIs) and fluorescent penetrant inspections (FPIs) for cracks in certain LPC fan hubs and removing LPC fan hubs from service that fail any inspection. Since the FAA issued AD 2018-21-11, the FAA determined that affected LPC fan hub assemblies can meet the published certificated life limit without the need for the required repetitive FPI inspections in AD 2018-21-11, and the repetitive ECI inspections require shortened intervals. Based on a report of another incident, the FAA determined that the unsafe condition is likely to exist or develop on additional LPC fan hub assemblies and PW model engines. This AD expands the applicability to include Model PW4074, PW4074D, PW4077, PW4077D, PW4084D, PW4090, and PW4090-3 engines with any part number LPC fan hub assembly installed and requires performing repetitive ECIs of the LPC fan hub assembly and, depending on the results of the inspections, removing the LPC fan hub assembly from service. The FAA is issuing this AD to address the unsafe condition on these products.
2025-09-02: The FAA is superseding Airworthiness Directive (AD) 2022-19- 09, which applied to all Airbus Canada Limited Partnership Model BD- 500-1A10 and BD-500-1A11 airplanes. AD 2022-19-09 required repetitive inspections of the left and right main landing gear (MLG) lower spindle pins to detect corrosion and applicable repair or replacement. This AD was prompted by reports of in-service findings of corrosion on the flange of the MLG lower spindle pin. This AD continues to require certain actions in AD 2022-19-09. This AD also requires changing the tracking of flight cycles for inspections from the usage of the MLG to the usage of MLG lower spindle assemblies and replacement of affected MLG lower spindle assemblies, removes airplanes from the applicability, and prohibits the installation of affected parts under certain conditions; as specified in a Transport Canada AD, which is incorporated by reference. The FAA is issuing this AD to address the unsafe condition on these products.
2023-18-06: The FAA is superseding Airworthiness Directive (AD) 2021-02- 15, which applied to certain The Boeing Company Model 747-100, 747- 100B, 747-100B SUD, 747-200B, 747-200C, 747-200F, 747-300, 747-400, 747-400D, 747-400F, and 747SR series airplanes. AD 2021-02-15 required repetitive replacement of certain parts; an inspection to determine production configuration for certain parts; repetitive lubrication of certain parts and a repetitive inspection of certain parts for any exuding grease; repetitive inspections of certain parts for loose or missing attachment bolts, cracks or bushing migration, cracks or gouges, or broken, binding, or missing rollers; repetitive inspections of certain parts for cracks or corrosion; repetitive lubrication; and on-condition actions if necessary. This AD was prompted by the FAA's determination that certain compliance times must be reduced in order to address the unsafe condition. This AD continues to require the actions specified in AD 2021-02-15 with certain reduced compliance times. The FAA is issuing this AD to address the unsafe condition on these products.
2002-15-08: This amendment adopts a new airworthiness directive (AD) for specified Eurocopter France (ECF) model helicopters. This AD requires determining the load release unit (cargo hook) serial number, measuring the clearance between the locking catch and the cargo hook, and removing unairworthy cargo hooks from service. This amendment is prompted by the discovery of a defect on certain cargo hooks that may prevent load release. The actions specified by this AD are intended to prevent failure of a cargo hook to release a load creating an additional hazard in an emergency situation and subsequent loss of control of a helicopter.
2023-19-06: The FAA is superseding Airworthiness Directive (AD) 64-09-03, which applied to all de Havilland (type certificate now held by Viking Air Limited (Viking)) Model DHC-2 ''Beaver'' airplanes. AD 64-09-03 required inspecting the aileron mass balance weight arms for cracks and corrosion and replacing any damaged part. Since the FAA issued AD 64- 09-03, Transport Canada superseded its mandatory continuing airworthiness information (MCAI) to correct an unsafe condition on these products. This AD requires incorporating into the existing maintenance records for your airplane the actions and associated thresholds and intervals, including life limits, specified in a supplemental inspection and corrosion control manual for Model DHC-2 airplanes. This AD also requires completing all of the initial tasks identified in this manual and reporting certain corrosion findings to Viking. The actions in this supplemental inspection and corrosion control manual include the inspection of the aileron balance weight arms required by AD 64-09-03. The FAA is issuing this AD to address the unsafe condition on these products.
2025-09-12: The FAA is adopting a new airworthiness directive (AD) for certain The Boeing Company Model 787-8, 787-9, and 787-10 airplanes. This AD was prompted by reports of water leakage from the potable water system due to improperly installed waterline couplings, and water leaking into the electronics equipment (EE) bays from above the floor in the main cabin, resulting in water on the equipment in the EE bays. This AD requires an inspection of seat tracks above the EE bays for missing, damaged, or deteriorated sealant, moisture barrier tape, or tape dams, as applicable, and applicable on-condition actions. The FAA is issuing this AD to address the unsafe condition on these products.
94-22-01: This amendment supersedes an existing airworthiness directive (AD), applicable to all McDonnell Douglas Model DC-10-10, -10F, -30, and -30F series airplanes, that currently requires inspections to detect ice or snow accumulation on top of the fuselage and in the inlet of the number 2 engine, and removal of ice and snow accumulation. This amendment adds certain airplanes to the applicability of the rule and limits the inspection requirement to only a certain group of airplanes. This amendment is prompted by the development of improved fan blades on certain engines and the identification of additional airplanes that are subject to the unsafe condition. The actions specified by this AD are intended to minimize damage to the number 2 engine due to ingestion of ice and snow.
2002-15-03: This amendment supersedes an emergency airworthiness directive (AD) 2002-05-51 that was sent previously to all known U.S. owners and operators of Hamilton Sundstrand Corporation (formerly Hamilton Standard Division) model 568F-1 propellers. That AD requires replacement of propeller blades, part numbers (P/N's) R815505-2 and R815505-3, that have a serial number (SN) of FR1698 or lower, with serviceable propeller blades, a prohibition against installing any propeller blades, P/N's R815505-2 and R815505-3, that have a SN of FR428 or lower, that were previously installed on an ATR-42-400 or an ATR-72 airplane, on any other airplane, and initial and repetitive ultrasonic shear wave inspection of the blade tulip on installed blades P/N's R815505-2 and R815505-3, that have a SN of FR1698 or lower. This amendment requires those same actions, and also requires replacing certain SN blades before further flight. This amendment also requires initial and repetitive ultrasonic shear wave inspections of the blade tulip on installed blades, P/N's R815505-2 and R815505-3, that have a SN of FR1698 or lower until they are replaced. This amendment is prompted by a report of a blade failure that resulted in damage to the airplane. The actions specified in this AD are intended to prevent blade failure due to corrosion-induced fatigue, which could result in blade separation and possible loss of airplane control.
2023-19-05: The FAA is superseding Airworthiness Directive (AD) 2017-19-22 for all British Aerospace Regional Aircraft Jetstream Series 3101 and Jetstream Model 3201 airplanes. AD 2017-19-22 required incorporating BAE Systems' Corrosion Prevention and Control program into the Airworthiness Limitations Section (ALS) of the existing instructions for continued airworthiness (ICA) for your airplane, which added new and more restrictive inspections for corrosion that include inspecting the door hinges/supporting structure and attachment bolts for the main spar joint and engine support, and the rudder hinge location on the vertical stabilizer, and applicable corrective actions. Since the FAA issued AD 2017-19-22, the Civil Aviation Authority (CAA) of the United Kingdom (UK) superseded the mandatory continuing airworthiness information (MCAI) issued by the European Aviation Safety Agency (now European Union Aviation Safety Agency) (EASA) to correct an unsafe condition on these products. This AD requires revising the ALS of the existing ICA for your airplane. The FAA is issuing this AD to address the unsafe condition on these products.
2025-09-09: The FAA is adopting a new airworthiness directive (AD) for all MHI RJ Aviation ULC Model CL-600-2C10 (Regional Jet Series 700, 701 & 702), CL-600-2C11 (Regional Jet Series 550), CL-600-2D15 (Regional Jet Series 705), CL-600-2D24 (Regional Jet Series 900), and CL-600-2E25 (Regional Jet Series 1000) airplanes. This AD was prompted by reports that the cockpit voice recorder (CVR) impact switch was installed in the wrong direction. This AD requires an inspection of the CVR impact switch installation to confirm that the reset switch faces forward, and applicable on-condition actions, as specified in a Transport Canada AD, which is incorporated by reference. The FAA is issuing this AD to address the unsafe condition on these products.
94-19-51 R1: This document revises and publishes in the Federal Register an amendment adopting Airworthiness Directive (AD) T94-19-51 that was sent previously to all known U.S. owners and operators of McDonnell Douglas Model MD-11 and MD-11F series airplanes by individual telegrams. This AD supersedes an existing airworthiness directive that currently requires a revision to the Airplane Flight Manual (AFM) to ensure that the flight crews verify the accuracy of data provided by the Flight Management Computer (FMC) under certain conditions. This amendment requires a revision to the AFM to ensure that the flight crews verify the accuracy of data provided by the FMC under all conditions. This amendment is prompted by a report that the "check/confirm V speed" message may be inhibited when the flaps are extended to within three degrees of the takeoff flap setting that was entered into the FMC. The actions specified by this AD are intended to prevent FMC miscalculations that may result in excessively high takeoff decision (V1) speeds, which may adversely affect accelerate-stop distances and may lead to the failure of the airplane to stop prior to departing the end of the runway during a high speed rejected takeoff. This amendment also revises the previously issued telegraphic AD by correcting a typographical error in the listing of the part numbers for the FMC's.
2023-19-09: The FAA is superseding Airworthiness Directive (AD) 2020-24- 04, which applied to all The Boeing Company Model 787-8, 787-9, and 787-10 airplanes. AD 2020-24-04 required revising the existing airplane flight manual (AFM) to incorporate procedures for an approach with a localizer-based navigation aid, monitoring localizer raw data, calling out any significant deviations, and performing an immediate go around under certain conditions. This AD was prompted by the development of a modification to address the previously identified unsafe condition, and the identification of a separate unsafe condition where misleading vertical flight director (FD) guidance can be presented to the flightcrew under certain conditions. This AD continues to require the actions specified in AD 2020-24-04 and requires installing applicable software updates to the flight control module (FCM). Using updated software terminates the retained AFM requirement in this AD. The FAA is issuing this AD to address the unsafe condition on these products.
2002-15-02: This amendment adopts a new airworthiness directive (AD), that is applicable to Hamilton Sundstrand Power Systems (formerly Sundstrand Power Systems, Turbomach, and Solar) T-62T series auxiliary power units (APU's) with compressor wheel part number (P/N) 100636-1 installed. This amendment requires the replacement of compressor wheels P/N 100636-1. This amendment is prompted by a manufacturer's stress analysis that indicates stress levels high enough to initiate and drive crack growth in these compressor wheels. The actions specified by this AD are intended to mandate the replacement of the affected compressor wheels, which if not replaced, could result in uncontained compressor wheel failure and damage to the airplane.
2025-10-11: The FAA is adopting a new airworthiness directive (AD) for certain General Electric Company (GE) Model CF6-80E1A2, CF6-80E1A3, CF6-80E1A4, and CF6-80E1A4/B engines. This AD was prompted by a manufacturer investigation that revealed certain high-pressure turbine (HPT) stage 1 and HPT stage 2 disks were manufactured from powder metal material suspected to contain iron inclusion. This AD requires replacement of affected HPT stage 1 and HPT stage 2 disks with parts eligible for installation. The FAA is issuing this AD to address the unsafe condition on these products.
2002-15-01: This amendment adopts a new airworthiness directive (AD) that applies to all Diamond Aircraft Industries GmbH (Diamond) Models H-36 "Dimona", HK 36 R "Super Dimona", HK 36 TC, HK 36 TS, HK 36 TTC, HK 36 TTC-ECO, HK 36 TTC-ECO (Restricted Category), and HK 36 TTS sailplanes. This AD requires you to inspect the long aileron push rods in both wings for damage and modify the push rods. This AD is the result of mandatory continuing airworthiness information (MCAI) issued by the airworthiness authority for Austria. The actions specified by this AD are intended to detect and correct damage in the long aileron push control rods, which could result in failure of the aileron push rods and decreased control. Such failure could lead to aeroelastic flutter.
2011-04-03: We are adopting a new airworthiness directive (AD) for the products listed above. This AD results from mandatory continuing airworthiness information (MCAI) originated 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: During flight-testing of a wing anti-ice piccolo tube containing a deliberate small breach, it was determined that the wing leading edge thermal switches Part Number (P/N) 601R59320-1 were not detecting the consequent bleed leak at the design threshold. As a result, Airworthiness Limitation (AWL) tasks, consisting of a functional check of the wing leading edge thermal switches (P/N 601R59320-1) and an inspection of the wing anti-ice duct piccolo tubes on aeroplanes with these switches installed, have been introduced. These tasks will limit exposure to dormant failure of the wing leading edge thermal switches in the event of piccolo tube failure, whichcould potentially compromise the structural integrity of the wing leading edge and the effectiveness of the wing anti-ice system. * * * * * The unsafe condition is loss of control of the airplane. We are issuing this AD to require actions to correct the unsafe condition on these products.
2002-14-26: This amendment adopts a new airworthiness directive (AD) that is applicable to Turbomeca S.A. Arriel models 1A, 1A1, 1B, 1D, and 1D1 turboshaft engines. This action requires installation of containment shield rings around the free turbine blade area, and installation of a double support around the gearbox free turbine bearing housing. This amendment is prompted by two reports of the cantilevered axis of the free turbine moving from its design position and inducing blade trajectories outside the current design free turbine containment area. This condition can lead to uncontainment of the free turbine during an overspeed event. The actions specified in this AD are intended to prevent uncontainment of the free turbine during an overspeed event, resulting in damage to the helicopter.