NTSB Identification: MIA96LA052.
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Accident occurred Saturday, December 30, 1995 in EASTOVER, SC
Probable Cause Approval Date: 11/25/1996
Aircraft: Mooney M20, registration: N3750H
Injuries: 1 Minor.
NTSB investigators may not have traveled in support of this investigation and used data provided by various sources to prepare this aircraft accident report.
The pilot noted a loss of oil pressure during flight followed by a loss of power. He executed a forced landing, and on final approach the airplane struck a guy wire. The engine oil pump was examined, and the oil pump driven gear had failed due to lack of lubrication. The #3 connecting rod and the camshaft then failed. The engine had been overhauled in the field previously, and a service instruction to increase lubrication of the oil pump driven gear had not been accomplished.
The National Transportation Safety Board determines the probable cause(s) of this accident to be: inadequate overhaul procedures by maintenance personnel resulting in an oil pump failure and subsequent loss of engine power. Full narrative available
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