AD 2010-10-02
Effective 06/17/2010 · Published 05/13/2010
Airworthiness Directives; Sikorsky Aircraft Corporation Model S-76A, B, and C Helicopters
Summary
This amendment adopts a new airworthiness directive (AD) for Sikorsky Aircraft Corporation (Sikorsky) Model S-76A, B, and C helicopters that requires inspecting each installed Woodward HRT (formerly HR Textron) main rotor servo actuator (servo actuator) for a high rate of leakage and replacing each affected servo actuator with a servo actuator containing a newly re-designed servo actuator piston. This amendment is p…