273 results found (1301ms)
Airworthiness 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
Airworthiness Directives; Sikorsky Aircraft Corporation Helicopters
Unsafe Condition: Crack in the swashplate assembly inner ring extending between the uniball bore and near the right-hand trunnion to servo attach bolt hole.
Why matched: Airworthiness Directives; Sikorsky Aircraft Corporation Helicopters
Airworthiness Directives; Various Helicopters
Unsafe Condition: unsafe condition on these products.
Why matched: Airworthiness Directives; Various Helicopters
Airworthiness Directives; Sikorsky Aircraft Corporation Helicopters
Unsafe Condition: The unsafe condition is the potential for the forward root fitting and the horizontal stabilizer strut fitting to fail, which could lead to loss of control of the helicopter.
Why matched: Airworthiness Directives; Sikorsky Aircraft Corporation Helicopters
Airworthiness Directives; Goodrich Externally-Mounted Hoist Assemblies
Unsafe Condition: The overload clutch in the Goodrich externally-mounted hoist assemblies can fail, leading to in-flight loss of the hoist load, possibly resulting in injury to persons on the ground or in a hoisting...
Why matched: Airworthiness Directives; Goodrich Externally-Mounted Hoist Assemblies
Airworthiness Directives; Sikorsky Aircraft Corporation Helicopters
Unsafe Condition: Reports that certain Thales GPS satellite based augmentation system (SBAS) receivers provided, under certain conditions, erroneous outputs on aircraft positions. The unsafe condition, if not addres...
Why matched: Airworthiness Directives; Sikorsky Aircraft Corporation Helicopters
Airworthiness Directives; Sikorsky Aircraft Corporation Helicopters
Unsafe Condition: A cracked main rotor stationary swashplate assembly (swashplate assembly) could result in fretting wear on the shoulder that supports the clamp-up of the uniball outer race, failure of the swashpla...
Why matched: Airworthiness Directives; Sikorsky Aircraft Corporation Helicopters
Airworthiness Directives; Sikorsky Aircraft Corporation Helicopters
Unsafe Condition: A manufacturing defect in the main back tube assembly of certain Martin-Baker side facing utility and observer seats installed on Sikorsky Model S-92A helicopters, which can cause excessive lumbar ...
Why matched: Airworthiness Directives; Sikorsky Aircraft Corporation Helicopters
Airworthiness Directives; Carson Helicopters, Inc.; Croman Corporation; Sikorsky Aircraft Corporation; and Siller Helicopters
Unsafe Condition: The left and right input freewheel unit (IFWU) assemblies on certain main gearboxes may slip or disengage, resulting in both engines overspeeding, engine shutdowns, and loss of engine power to the ...
Why matched: Airworthiness Directives; Carson Helicopters, Inc.; Croman Corporation; Sikorsky Aircraft Corporation; and Siller Helicopters
Airworthiness Directives; Sikorsky Aircraft and Sikorsky Aircraft Corporation Helicopters
Unsafe Condition: The manufacturer determined that there may be arm assemblies in service with 15,000 or more hours time-in-service (TIS), which exceeds the life limit for this component. This condition, if not addr...
Why matched: Airworthiness Directives; Sikorsky Aircraft and Sikorsky Aircraft Corporation Helicopters
Airworthiness Directives; Sikorsky Aircraft Corporation Helicopters
Unsafe Condition: The FAA is issuing this AD to correct the P/N errors for the actuator pins and address the unsafe condition on these products. The unsafe condition, if not addressed, could result in failure of com...
Why matched: Airworthiness Directives; Sikorsky Aircraft Corporation Helicopters
Airworthiness Directives; Sikorsky Aircraft Corporation Helicopters
Unsafe Condition: nonconforming threads on multiple landing gear components, including threaded hinge pins and main landing gear (MLG) and nose landing gear (NLG) actuator pins, resulting in a life limit reduction.
Why matched: Airworthiness Directives; Sikorsky Aircraft Corporation Helicopters
Airworthiness Directives; Sikorsky Aircraft Corporation Helicopters
Unsafe Condition: Fatigue cracking in a forward root fitting degrades the load path and increases the load on other assembly parts, particularly at the aft horizontal stabilizer attachment points.
Why matched: Airworthiness Directives; Sikorsky Aircraft Corporation Helicopters
Airworthiness Directives; Various Restricted Category Helicopters
Unsafe Condition: A crack in an M/R blade spindle cuff, which could result in failure of an M/R blade spindle cuff, loss of an M/R blade, and loss of control of the helicopter.
Why matched: Airworthiness Directives; Various Restricted Category Helicopters
Airworthiness Directives; Sikorsky Aircraft Corporation Helicopters
Unsafe Condition: erroneous low oil pressure caution cockpit indications and unintended actuation of the main gearbox (MGB) auto bypass valve
Why matched: Airworthiness Directives; Sikorsky Aircraft Corporation Helicopters
Airworthiness Directives; Sikorsky Aircraft Corporation Helicopters
Unsafe Condition: inaccurate main gear box (MGB) indications in flight, resulting in multiple erroneous values/annunciations on channel B, which could cause the flight crew to land immediately, and consequent possib...
Why matched: Airworthiness Directives; Sikorsky Aircraft Corporation Helicopters
Airworthiness Directives; Sikorsky Aircraft Corporation Helicopters
Unsafe Condition: Disbonding between the tail rotor (T/R) blade pitch horn and the torque tube, if not addressed, could result in increased T/R vibrations, physical failure of the torque tube, and subsequent loss of...
Why matched: Airworthiness Directives; Sikorsky Aircraft Corporation Helicopters
Airworthiness Directives; Sikorsky Aircraft Corporation Helicopters
Unsafe Condition: The engine collective position transducer (CPT) may not provide accurate information, which could lead to an unreliable airspeed indication and loss of control of the helicopter.
Why matched: Airworthiness Directives; Sikorsky Aircraft Corporation Helicopters
Airworthiness Directives; Sikorsky Aircraft Corporation Helicopters
Unsafe Condition: A crack in a main transmission airframe support structure, which could result in failure of a main transmission frame and subsequent loss of control of the helicopter.
Why matched: Airworthiness Directives; Sikorsky Aircraft Corporation Helicopters
Airworthiness Directives; Sikorsky Aircraft Corporation Helicopters
Unsafe Condition: fatigue failure of the landing gear, which could result in failure of the landing gear and loss of control of the helicopter
Why matched: Airworthiness Directives; Sikorsky Aircraft Corporation Helicopters
Airworthiness Directives; Sikorsky Aircraft Corporation
Unsafe Condition: Wear of the engine collective position transducer (CPT) has resulted in several One Engine Inoperative (OEI) incidents.
Why matched: Airworthiness Directives; Sikorsky Aircraft Corporation
Airworthiness Directives; Sikorsky Aircraft Corporation Helicopters
Unsafe Condition: Failure of a drive shaft, which could result in loss of rotor drive and subsequent loss of control of the helicopter.
Why matched: Airworthiness Directives; Sikorsky Aircraft Corporation Helicopters
Airworthiness Directives; Sikorsky Aircraft Corporation Helicopters
Unsafe Condition: A loose jamnut could result in failure of a pushrod assembly, loss of M/R flight control, and subsequent loss of control of the helicopter.
Why matched: Airworthiness Directives; Sikorsky Aircraft Corporation Helicopters
Airworthiness Directives; Sikorsky Aircraft Corporation Helicopters
Unsafe Condition: Decoupling of the flight director (FD) in all three axes when transitioning between SAR AFCS modes, specifically from SAR Approach 2 (APP2) to Velocity Hover Hold (VHLD) mode, resulting in a three-...
Why matched: Airworthiness Directives; Sikorsky Aircraft Corporation Helicopters
Airworthiness Directives; Sikorsky Aircraft Corporation Helicopters (Type Certificate Previously Held by Schweizer Aircraft Corporation)
Unsafe Condition: Reports of accidents due to driveshaft failures indicate an unsafe condition involving corrosion, pits, nicks, scratches, dents, and cracks in the driveshaft.
Why matched: Airworthiness Directives; Sikorsky Aircraft Corporation Helicopters (Type Certificate Previously Held by Schweizer Aircraft Corporation)