Superseded. This AD was superseded by AD 2022-06-05. Verify which one applies to your serial and effectivity before any maintenance action.
AD 2021-15-52
Effective 08/13/2021 · Published 07/29/2021
Airworthiness Directives; Various Restricted Category Helicopters
Summary
The FAA is adopting a new airworthiness directive (AD) for various restricted category helicopters originally manufactured by Bell Textron Inc. This AD was prompted by a fatal accident in which an outboard main rotor hub strap pin (pin) sheared off during flight, resulting in the main rotor blade and the main rotor head detaching from the helicopter. This AD requires removing certain pins from service and prohibits…