Airworthiness Directive · Amendment 39-8944 · Schweizer Aircraft Corporation Helicopters
Schweizer Aircraft Corporation Helicopters
This AD applies to Schweizer Aircraft Corporation 269A, 269A-1, 269B, 269C.
The models as the FAA's AD index lists them. The serial ranges, installed parts and exceptions are in the AD itself: read it at the FAA.
This amendment adopts a new airworthiness directive (AD), applicable to Schweizer Aircraft Corporation and Hughes Helicopters, Inc. Model 269A, 269A-1, 269B, 269C, and TH-55A series helicopters, that requires mandatory replacement of all the clevis pins associated with the belt drive clutch control installation. This amendment is prompted by an accident involving the separation of the belt drive clutch control spring assembly (spring assembly) from the idler pulley assembly. The actions specified by this AD are intended to prevent separation of the spring assembly from the idler pulley assembly, loss of power to the main rotor system, and a subsequent forced landing.
The aircraft, engines and makers this AD names, by the model designations in its text. A model listed here may still be outside the AD's serial ranges.
Aircraft
