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2023-11-07

final rule

Airworthiness Directives; Various Helicopters

Unsafe Condition: unsafe condition on these products.

Effective: Jun 22, 2023 Category: aircraft Compliance: Before further flight

Why matched: Airworthiness Directives; Various Helicopters

2016-08-21

final rule

Airworthiness Directives; Kaman Aerospace Corporation

Unsafe Condition: Main rotor (M/R) blade striking the opposing rotor's flight controls, which could result in damage to the M/R flight controls and subsequent loss of control of the helicopter.

Effective: May 31, 2016 Category: aircraft Compliance: Within 10 hours time-in-service

Why matched: Airworthiness Directives; Kaman Aerospace Corporation

2015-14-04

final rule

Airworthiness Directives; Kaman Aerospace Corporation (Kaman) Helicopters

Unsafe Condition: A crack in an MRB, which could lead to failure of the MRB and subsequent loss of control of the helicopter.

Effective: Aug 17, 2015 Category: aircraft Compliance: Before the MRB reaches 3,000 hours time-in-service (TIS) or within 50 hours TIS, whichever occurs...

Why matched: Airworthiness Directives; Kaman Aerospace Corporation (Kaman) Helicopters

2010-26-11

final rule

Airworthiness Directives; Kaman Aerospace Corporation (Kaman) Model K-1200 Helicopters

Unsafe Condition: Cracks in the main rotor blade spars, which could lead to blade failure and subsequent loss of control of the helicopter.

Effective: Jan 5, 2011 Category: aircraft Compliance: Before further flight

Why matched: Airworthiness Directives; Kaman Aerospace Corporation (Kaman) Model K-1200 Helicopters

Technical illustration of a helicopter rotor hub assembly
Problem area Rotor system

2004-13-26 Recurring

final rule

Airworthiness Directives; Kaman Aerospace Corporation Model K-1200 Helicopters

Unsafe Condition: Failure of a blade grip due to a crack on the upper surface around the bolthole, leading to loss of a blade and subsequent loss of control of the helicopter.

Effective: Jul 22, 2004 Category: aircraft Compliance: Before further flight and before the first flight of each day.

Why matched: Airworthiness Directives; Kaman Aerospace Corporation Model K- 1200 Helicopters

2001-13-03 R1

final rule

Airworthiness Directives; Kaman Aerospace Corporation Model K- 1200 Helicopters

Unsafe Condition: Flap clevis

Effective: May 27, 2003 Category: aircraft

Why matched: Airworthiness Directives; Kaman Aerospace Corporation Model K- 1200 Helicopters

Amdt-39-13123

final rule

Airworthiness Directives; Kaman Aerospace Corporation Model K-1200 Helicopters

Unsafe Condition: Fatigue failure of the rotor shaft, teeter pin assembly, and flap clevis assembly, which could lead to loss of control of the helicopter.

Effective: May 27, 2003 Category: aircraft Compliance: Before further flight.

Why matched: Airworthiness Directives; Kaman Aerospace Corporation Model K-1200 Helicopters

2000-18-10

final rule

Airworthiness Directives; Kaman Model K-1200 Helicopters

Unsafe Condition: Failure of sprag clutch, part number K974110-005, during external load operations could result in loss of drive to the main rotor system and subsequent loss of control of the helicopter.

Effective: Sep 26, 2000 Category: aircraft Compliance: within 10 hours time-in-service

Why matched: Airworthiness Directives; Kaman Model K-1200 Helicopters

Technical illustration of a helicopter rotor hub assembly
Problem area Rotor system

99-26-04

final rule

Airworthiness Directives; Kaman Aerospace Corporation Model K1200 Helicopters

Unsafe Condition: Failure of the engine adapter flange and loss of power to the main rotors due to internal transmission clutch damage.

Effective: Feb 8, 2000 Category: aircraft Compliance: Before the first flight of each day

Why matched: Airworthiness Directives; Kaman Aerospace Corporation Model K1200 Helicopters

Amdt-39-11523

final rule

Airworthiness Directives; Kaman Aerospace Corporation Model K1200 Helicopters

Unsafe Condition: Failure of the engine adapter flange and loss of power to the main rotors.

Effective: Feb 8, 2000 Category: engine Compliance: Before further flight

Why matched: Airworthiness Directives; Kaman Aerospace Corporation Model K1200 Helicopters

2001-13-03

final rule

Airworthiness Directives; Kaman Aerospace Corporation Model K-1200 Helicopters

Unsafe Condition: Failure of the rotor shaft, teeter pin assembly, or flap clevis due to fatigue cracks, and subsequent loss of control of the helicopter.

Category: aircraft Compliance: Within 25 hours time-in-service, unless accomplished previously.

Why matched: Airworthiness Directives; Kaman Aerospace Corporation Model K-1200 Helicopters

59-10-06

final rule

Airworthiness Directives; KAMAN: All Model K-240 Helicopters (Military HTK-1)

Unsafe Condition: Wood type cheek plate rotor blades (P/N K411042-1, -2, -7, and -8) are ineligible for use due to associated adverse service experience.

Category: aircraft

Why matched: Airworthiness Directives; KAMAN: All Model K-240 Helicopters (Military HTK-1)