EASA AD US-2022-07-03
Rotors Flight Control - Collective Lever - Replacement / Life Limitation
Federal Register Volume 87, Number 56 (March 23, 2022) Airworthiness Directive 2022-07-03 is a final rule issued by the FAA addressing Bell Textron Inc. Model 412, 412EP, and 412CF helicopters. It requires adding a permanent hours time-in-service (TIS) penalty to certain collective levers due to fatigue life concerns identified during evaluation of helicopters equipped with the Strake and FastFin system. The directive prohibits installation of collective levers unless the penalty has been applied to ensure continued airworthiness.