On July 23, 1990, a Piper PA-24 (registration N7202P) operated by Fisher Glenn D. was involved in an aviation accident near West Fork, AR. Investigators recorded the probable cause as: The failure of the idler gear bolt which jammed the crankshaft gear, leading to catastrophic engine failure. This summary draws on records from the U.S. National Transportation Safety Board (NTSB) historical archive; 8 related events involving the same aircraft type or operator are linked below.
A Piper PA24-250 suffered catastrophic engine failure at 6,500 feet due to an idler gear bolt issue. The pilot landed on a narrow road, striking a utility pole.
What happened
The aircraft was operating in cruise flight at an altitude of 6,500 feet mean sea level when the engine experienced a catastrophic failure. The mechanical breakdown was caused by the idler gear bolt failing, which subsequently jammed the crankshaft gear. Following the loss of power, the pilot executed an emergency landing on a narrow farm road.
During the landing roll, the wing struck a utility pole. This impact resulted in substantial damage to the aircraft structure.
Probable cause
The failure of the idler gear bolt which jammed the crankshaft gear, leading to catastrophic engine failure.
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