26 results found (772ms)
Airworthiness Directives; Thommen Aircraft Equipment AG Digital Air Data Computers
Unsafe Condition: Occurrences of AC32 Digital ADCs that stopped functioning due to the power module failing at temperatures below -20 degrees Celsius.
Why matched: Airworthiness Directives; Thommen Aircraft Equipment AG Digital Air Data Computers
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; Bell Textron Inc. Helicopters
Unsafe Condition: Cracked tail boom attachment barrel nuts (barrel nuts) due to corrosion damage, high time in service, or hydrogen embrittlement, which can cause loss of torque on the associated bolt and subsequent...
Why matched: Airworthiness Directives; Bell Textron Inc. Helicopters
Airworthiness Directives; Bell Textron Inc. Helicopters
Unsafe Condition: Failure of the tail boom attachment structure, including fatigue cracking of tail boom attachment fittings, cap angles, longerons, and bolts.
Why matched: Airworthiness Directives; Bell Textron Inc. Helicopters
Airworthiness 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
Airworthiness Directives; Bell Textron Inc. (Type Certificate Previously Held by Bell Helicopter Textron, Inc.), Helicopters
Unsafe Condition: The unsafe condition is a fatigue crack in a tail boom attachment cap angle, which can lead to failure of the cap angle, loss of the tail boom, and subsequent loss control of the helicopter.
Why matched: Airworthiness Directives; Bell Textron Inc. (Type Certificate Previously Held by Bell Helicopter Textron, Inc.), Helicopters
Airworthiness Directives; Various Helicopters
Unsafe Condition: unsafe condition on these products.
Why matched: Airworthiness Directives; Various Helicopters
Airworthiness 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
Airworthiness 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
Airworthiness 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
Airworthiness Directives; Bell Textron Inc. Helicopters
Unsafe Condition: A cracked check valve may exist on certain Bell Textron Inc. Model 212, 412, 412CF, and 412EP helicopters with an engine oil check valve part number (P/N) 209-062-520-001 or fuel check valve P/N 20...
Why matched: Airworthiness Directives; Bell Textron Inc. Helicopters
Airworthiness Directives; Bell Textron Inc. Helicopters
Unsafe Condition: A crack in the spar cap, if not detected and corrected, could create stress concentrations at the edge of the rivet holes, resulting in reduced structural integrity of the helicopter and subsequent...
Why matched: Airworthiness Directives; Bell Textron Inc. Helicopters
Airworthiness Directives; Bell Textron Inc., Helicopters
Unsafe Condition: The condition, if not addressed, could result in fatigue damage and cracking, failure of the collective lever, and subsequent loss of control of the helicopter.
Why matched: Airworthiness Directives; Bell Textron Inc., 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; Bell Textron Inc. (Type Certificate Previously Held by Bell Helicopter Textron Inc.) Helicopters
Unsafe Condition: The affected pin may shear off during flight, resulting in the main rotor blade and the main rotor head detaching from the helicopter.
Why matched: Airworthiness Directives; Bell Textron Inc. (Type Certificate Previously Held by Bell Helicopter Textron Inc.) Helicopters
Airworthiness Directives; Various Restricted Category Helicopters
Unsafe Condition: Failure of a pin could result in the main rotor blade detaching from the helicopter and subsequent loss of control of the helicopter.
Why matched: Airworthiness Directives; Various Restricted Category Helicopters
Airworthiness Directives; Bell Textron Inc. (Type Certificate Previously Held by Bell Helicopter Textron Inc.) Helicopters
Unsafe Condition: This AD was prompted by a fatal accident in which a pin sheared off during flight, which resulted in the main rotor blade and the main rotor head detaching from the helicopter.
Why matched: Airworthiness Directives; Bell Textron Inc. (Type Certificate Previously Held by Bell Helicopter Textron Inc.) Helicopters
Airworthiness Directives; Bell Textron Inc. (Type Certificate Previously Held by Bell Helicopter Textron Inc.) Helicopters
Unsafe Condition: The unsafe condition, if not addressed, could result in fatigue and failure of the grip assembly and loss of helicopter control.
Why matched: Airworthiness Directives; Bell Textron Inc. (Type Certificate Previously Held by Bell Helicopter Textron Inc.) Helicopters
Airworthiness Directives; Various Restricted Category Helicopters
Unsafe Condition: Failure of the tail boom attach structure, including the bolts, resulting in separation of the tail boom from the helicopter and subsequent loss of control of the helicopter.
Why matched: Airworthiness Directives; Various Restricted Category Helicopters
Airworthiness Directives; Bell Textron Inc. (Type Certificate Previously Held by Bell Helicopter Textron Inc.) Helicopters
Unsafe Condition: A pin P/N 204-012-104-005 with an S/N prefix 'FNFS' sheared off during flight, resulting in the main rotor blade and the main rotor head detaching from the helicopter. The pin had accumulated only ...
Why matched: Airworthiness Directives; Bell Textron Inc. (Type Certificate Previously Held by Bell Helicopter Textron Inc.) Helicopters
Airworthiness Directives; Bell Textron Inc. (Type Certificate Previously Held by Bell Helicopter Textron Inc.) Helicopters
Unsafe Condition: The T/R blades sustain greater loads when used on Bell Model 205B helicopters compared to their use on other model helicopters, resulting in failure of the T/R blade and subsequent loss control of ...
Why matched: Airworthiness Directives; Bell Textron Inc. (Type Certificate Previously Held by Bell Helicopter Textron Inc.) Helicopters
Airworthiness Directives; Bell Textron Inc. (Type Certificate Previously Held by Bell Helicopter Textron Inc.) Helicopters
Unsafe Condition: excessive pylon pitch vibrations likely caused overload that resulted in cracked main gearbox (MGB) support case failures, and investigations are ongoing to determine the root cause of these vibrat...
Why matched: Airworthiness Directives; Bell Textron Inc. (Type Certificate Previously Held by Bell Helicopter Textron Inc.) Helicopters
Airworthiness Directives; Bell Textron Inc. (Type Certificate Previously Held by Bell Helicopter Textron Inc.) Helicopters
Unsafe Condition: Corrosion detected on main rotor hub tension-torsion strap (TT strap) assemblies.
Why matched: Airworthiness Directives; Bell Textron Inc. (Type Certificate Previously Held by Bell Helicopter Textron Inc.) Helicopters
Airworthiness Directives; Bell Textron Inc. (Type Certificate Previously Held by Bell Helicopter Textron Inc.) Helicopters
Unsafe Condition: a comfort clip interfering with the seat belt inertia reel
Why matched: Airworthiness Directives; Bell Textron Inc. (Type Certificate Previously Held by Bell Helicopter Textron Inc.) Helicopters
Airworthiness Directives; Bell Textron Inc. (Type Certificate Previously Held by Bell Helicopter Textron Inc.) Helicopters
Unsafe Condition: The discovery that bolts have nonconforming external thread root radii. The unsafe condition, if not addressed, could result in the spindle separating from the yoke and subsequent loss of control o...
Why matched: Airworthiness Directives; Bell Textron Inc. (Type Certificate Previously Held by Bell Helicopter Textron Inc.) Helicopters