AD 2009-13-01
Effective 07/01/2009 · Published 06/16/2009
Airworthiness Directives; Sikorsky Aircraft Corporation Model S-92A Helicopters
Summary
This amendment supersedes an existing airworthiness directive (AD) for Sikorsky Aircraft Corporation (Sikorsky) Model S-92A helicopters. That AD currently requires removing all main gearbox (MGB) filter bowl assembly mounting titanium studs (titanium studs) and replacing them with steel studs. This amendment requires the same actions as the existing AD as well as changes to the Rotorcraft Flight Manual (RFM). This a…