96-06-11
FR doc 96-7135 · 61 FR 13081AD 96-06-11Published 1996-03-26Effective 1996-05-28
Prompted by manufacturer's engine testing and analysis that indicate that if these compressor components continue in service without an established retirement life, accumulative cyclic effects may result in a fatigue failure.
Full official abstract
This amendment adopts a new airworthiness directive (AD), applicable to certain AlliedSignal Inc. (formerly Garrett Engine Division) TPE331 series turboprop engines, that establishes cyclic retirement lives for certain compressor components. This amendment is prompted by manufacturer's engine testing and analysis that indicate that if these compressor components continue in service without an established retirement life, accumulative cyclic effects may result in a fatigue failure. The actions specified by this AD are intended to prevent fatigue failure of engine compressor components and an inflight engine shutdown.