Superseded. This AD was superseded by AD 2018-02-13. Verify which one applies to your serial and effectivity before any maintenance action.
AD 2017-07-02
Effective 04/11/2017 · Published 03/27/2017
Airworthiness Directives; Sikorsky Aircraft Corporation Helicopters
Summary
We are adopting a new airworthiness directive (AD) for Sikorsky Aircraft Corporation (Sikorsky) Model 269D and Model 269D Configuration A helicopters. This AD requires reducing the life limit of and inspecting certain drive shafts. This AD is prompted by four incidents involving failure of a drive shaft. The actions specified by this AD are intended to prevent the unsafe condition on these products.