Airworthiness Directive · Amendment 39-12896 · Sikorsky Aircraft Corporation Model S76A, B, and C Helicopters
Sikorsky Aircraft Corporation Model S76A, B, and C Helicopters
Model S-76A, B, and C helicopters, certificated in any category.
This document publishes in the Federal Register an amendment adopting Airworthiness Directive (AD) 2002-15-51, sent previously to all known U.S. owners and operators of the specified Sikorsky Aircraft Corporation (Sikorsky) helicopters by individual letters. This AD requires, before further flight, identifying and removing any main rotor blade (blade) that has been damaged by lightning and any blade with an unclear service history. This AD is prompted by the failure of a blade due to lightning strike damage. The actions specified by this AD are intended to prevent failure of a blade and subsequent loss of control of the helicopter.
The aircraft, engines and makers this AD names, by the model designations in its text. A model listed here may still be outside the AD's serial ranges.
Aircraft
