NTSB Identification: NYC06LA089.
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Accident occurred Sunday, April 09, 2006 in Philadelphia, PA
Probable Cause Approval Date: 02/26/2007
Aircraft: Piper PA-28RT-201, registration: N901AV
Injuries: 1 Uninjured.

NTSB investigators may not have traveled in support of this investigation and used data provided by various sources to prepare this aircraft accident report.

During the takeoff, the pilot heard a loud noise and the engine began to vibrate "severely." The pilot realized that it would not be possible to return to the airport, and elected to land straight ahead. The airplane came to rest approximately 500-700 feet beyond the departure end of the runway. Examination of the airplane revealed that the engine's number 3 cylinder had separated from the engine case. Examination of the number 3 cylinder revealed that it had separated from the engine due to fatigue of the cylinder attachment studs and both through bolts. The fatigue initiated in the lower aft stud and progressed to the other studs and bolts. The engine had accumulated 1,407 total hours of operation since its most recent overhaul.

The National Transportation Safety Board determines the probable cause(s) of this accident to be:

A fatigue failure of the number 3 cylinder attachment studs, which resulted in a loss of engine power and subsequent forced landing.

Full narrative available

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