AD 2001-02-11
Effective 02/15/2001 · Published 02/15/2001
Airworthiness Directives; Bell Helicopter Textron, Inc. Model 204B Helicopters
Summary
This amendment adopts a new airworthiness directive (AD) for Bell Helicopter Textron, Inc. (BHTI) Model 204B helicopters that requires replacing any main rotor mast assembly (mast), part number (P/ N) 204-011-450-001, within 25 hours time-in-service (TIS). This amendment is prompted by the crash of a restricted category Model UH-1B helicopter due to failure of a mast, P/N 204-011-450-001. The same mast P/N is used o…