NTSB Identification: FTW92LA176.
The docket is stored on NTSB microfiche number 46684.
Accident occurred Friday, July 03, 1992 in MARIETTA, OK
Probable Cause Approval Date: 06/30/1993
Aircraft: CESSNA 152, registration: N4957P
Injuries: 2 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.

A RIGHT MAGNETO DROP DURING THE BEFORE TAKEOFF ENGINE CHECK WAS 'UNACCEPTABLE' TO THE PILOT. THE PILOT INCREASED THE ENGINE POWER AND LEANED THE MIXTURE UNTIL HE OBTAINED AN 'ACCEPTABLE' RIGHT MAGNETO DROP IN RPM. DURING THE TAKEOFF, THE RPM DROPPED TO 2,000 RPM AND THE PILOT ABORTED THE TAKEOFF. THE AIRPLANE RAN OFF THE DEPARTURE END OF THE RUNWAY INTO A GULLY AND CAME TO REST INVERTED. AN ENGINE TEST RUN REVEALED NO ANOMALIES.

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

ENGINE POWER LOSS FOR UNDETERMINED REASONS.

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