2026-17-05
final ruleAirworthiness Directives; Various Helicopters
Unsafe Condition: Rescue hoist assemblies may have non-conformant overload clutch assemblies.
Why matched: Airworthiness Directives; Various Helicopters
Various Airworthiness Directives
108 ADs indexed for Various aircraft.
Models
Recent ADs
2026-15-17 Recurring
final ruleAirworthiness Directives; Various Helicopters
Unsafe Condition: The main rotor shaft (MRS) on certain helicopter models requires a lower life limit due to a design re-evaluation showing potential cracking or overstress from repetitive external lift operations.
Why matched: Airworthiness Directives; Various Helicopters
2026-16-11
final ruleAirworthiness Directives; BRP-Rotax GmbH & Co KG (Formerly BRP-Powertrain GMBH & CO KG and Bombardier-Rotax GmbH) Engines and Various Aircraft
Unsafe Condition: The oil spray nozzle and certain screws were not installed on the propeller gearbox.
Why matched: Airworthiness Directives; BRP-Rotax GmbH & Co KG (Formerly BRP-Powertrain GMBH & CO KG and Bombardier-Rotax GmbH) Engines and Various Aircraft
2026-11-05 Recurring
final ruleAirworthiness Directives; Various Helicopters
Unsafe Condition: Loss of tail rotor authority due to auxiliary system fluid loss caused by a yaw pedal damper housing fatigue fracture and attachment bolt fatigue fracture.
Why matched: Airworthiness Directives; Various Helicopters
2025-16-09
final ruleAirworthiness Directives; Various Airplanes
Unsafe Condition: Manufacturing defect in screws used inside the Pacific Scientific Company rotary buckle assembly (part numbers 1111475 and 1111548-01) could result in cracking and missing screw heads when under lo...
Why matched: Airworthiness Directives; Various Airplanes
2024-26-02
final ruleAirworthiness Directives; Various Airplanes and Helicopters
Unsafe Condition: The cracking on the buckle handle was caused by a material process issue and could result in occupants not being able to release the buckle in certain emergency landing conditions.
Why matched: Airworthiness Directives; Various Airplanes and Helicopters
2024-20-07 Recurring
final ruleAirworthiness Directives; Various Helicopters
Unsafe Condition: Difficulty pulling the emergency float kit activation handle installed on the pilot cyclic, and deficiencies in the installation of the cables on the emergency float kits.
Why matched: Airworthiness Directives; Various Helicopters
2024-20-04
final ruleAirworthiness Directives; Various Helicopters
Unsafe Condition: A manufacturing defect in the screws used inside Pacific Scientific Company buckles P/N 1111475 (all dash numbers) and P/N 1111548-01, which are susceptible to hydrogen embrittlement due to imprope...
Why matched: Airworthiness Directives; Various Helicopters
2024-19-17
final ruleAirworthiness Directives; Bell Textron Inc. and Various Restricted Category Helicopters
Unsafe Condition: The failure of a tension torsion (TT) strap, which can result in loss of a main rotor blade and subsequent loss of control of the helicopter.
Why matched: Airworthiness Directives; Bell Textron Inc. and Various Restricted Category Helicopters
2024-14-03
final ruleAirworthiness Directives; Various Airplanes
Unsafe Condition: an un-commanded automatic pitch trim runaway when the autopilot was first engaged, which could result in un-commanded automatic pitch trim runaway and loss of control of the airplane.
Why matched: Airworthiness Directives; Various Airplanes
2024-06-51
final ruleAirworthiness Directives; General Electric Company Engines, and Various Restricted Category Rotorcraft
Unsafe Condition: Inadequate braze coverage of the torque reference tube magnetic insert braze joint of the PT drive shaft assembly, which could result in improper torque and engine speed indications, creating an un...
Why matched: Airworthiness Directives; General Electric Company Engines, and Various Restricted Category Rotorcraft
2024-05-51
final ruleAirworthiness Directives; General Electric Company Engines, and Various Restricted Category Rotorcraft
Unsafe Condition: The torque reference tube magnetic insert braze joint of the power turbine drive shaft assembly may fail, resulting in improper torque and engine speed indications, which in combination with specif...
Why matched: Airworthiness Directives; General Electric Company Engines, and Various Restricted Category Rotorcraft
2024-01-11
final ruleAirworthiness Directives; Various Helicopters
Unsafe Condition: Manufacturing defect in screws used inside Pacific Scientific Company buckle part numbers 1111475 (all dash numbers) and 1111548-01, leading to hydrogen embrittlement and potential screwhead separa...
Why matched: Airworthiness Directives; Various Helicopters
2023-17-13 Recurring
final ruleAirworthiness Directives; BRP-Rotax GmbH & Co KG (Formerly BRP-POWERTRAIN GMBH & CO KG and Bombardier-Rotax GmbH) Engines and Various Aircraft
Unsafe Condition: Surface abnormalities on the propeller shaft, caused by a deviation in the machining process, could lead to increased wear of the propeller shaft bearings, which could result in failure of the prop...
Why matched: Airworthiness Directives; BRP-Rotax GmbH & Co KG (Formerly BRP-POWERTRAIN GMBH & CO KG and Bombardier-Rotax GmbH) Engines and Various Aircraft
2023-09-09 Recurring
final ruleAirworthiness Directives; Various Airplanes, Helicopters, and Engines
Unsafe Condition: Multiple failures of spot-welded, multi-segment v-band couplings at the tailpipe to the turbocharger exhaust housing flange.
Why matched: Airworthiness Directives; Various Airplanes, Helicopters, and Engines
2023-11-07
final ruleAirworthiness Directives; Various Helicopters
Unsafe Condition: unsafe condition on these products.
Why matched: Airworthiness Directives; Various Helicopters
2022-20-14 Recurring
final ruleAirworthiness Directives; Bell Textron Inc., Helicopters and Various Restricted Category Helicopters
Unsafe Condition: Stress corrosion cracking of the main transmission support case lateral mounts.
Why matched: Airworthiness Directives; Bell Textron Inc., Helicopters and Various Restricted Category Helicopters
2022-22-12
final ruleAirworthiness Directives; Bell Textron Inc., Erickson 214 Holdings, LLC, Leonardo S.p.a., and Various Restricted Category Helicopters
Unsafe Condition: Reports of two in-service failures of forward crosstubes due to fatigue damage, and the issuance of newly established life limits.
Why matched: Airworthiness Directives; Bell Textron Inc., Erickson 214 Holdings, LLC, Leonardo S.p.a., and Various Restricted Category Helicopters
2022-21-11 Recurring
final ruleAirworthiness Directives; Bell Textron Inc. Helicopters and Various Restricted Category Helicopters
Unsafe Condition: Cracked main rotor blades (MRBs) with chordwise cracks originating from the extreme trailing edge between blade station 190 and 210.
Why matched: Airworthiness Directives; Bell Textron Inc. Helicopters and Various Restricted Category Helicopters
2022-15-08
final ruleAirworthiness Directives; Various Transport Airplanes
Unsafe Condition: Smoke and fumes in the flight deck, which could result in excessive flightcrew workload and injury to flight deck occupants.
Why matched: Airworthiness Directives; Various Transport Airplanes