AD 2013-26-13
Effective 02/10/2014 · Published 01/06/2014
Airworthiness Directives; Sikorsky Aircraft Corporation (Sikorsky) Helicopters
Summary
We are adopting a new airworthiness directive (AD) for Sikorsky Model S-70, S-70A, S-70C, S-70C (M), and S-70C (M1) helicopters with General Electric (GE) T700-GE-401C or T700-GE-701C engines installed. This AD requires establishing new fatigue life limits for certain GE engine gas generator turbine (GGT) rotor parts. This AD was prompted by a reevaluation of the method for determining the life limit for certain GE…