ASN Wikibase Occurrence # 361092
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| Date: | Sunday 7 November 1993 |
| Time: | 17:00 LT |
| Type: |  Piper PA-32-300 |
| Owner/operator: | Private |
| Registration: | N9000M |
| MSN: | 32-7240053 |
| Year of manufacture: | 1971 |
| Total airframe hrs: | 2454 hours |
| Engine model: | LYCOMING IO-540-K1A5 |
| Fatalities: | Fatalities: 0 / Occupants: 1 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | Plymouth, FL -
 United States of America
|
| Phase: | En route |
| Nature: | Private |
| Departure airport: | |
| Jacksonville, FL (CRG | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
SHORTLY AFTER TAKEOFF WHILE CLIMBING TO CRUISE, THE ENGINE FAILED. THE PILOT EXECUTED A FORCED LANDING IN A FIELD AND LANDED HARD. EXAMINATION OF THE ENGINE REVEALED THAT THE CRANKSHAFT FAILED AT THE CONNECTING ROD THRUST FACE JUST ABOVE THE REAR FILLET RADIUS OF THE NO.5 CRANKPIN JOURNAL. METALLURGICAL EXAMINATION OF THE CRANKSHAFT REVEALED THAT IT FAILED DUE TO FATIGUE. REVIEW OF THE ENGINE LOGBOOKS REVEALED THAT THE ENGINE WAS OVERHAULED THEN DURING THE RUN-IN, A CAM FOLLOWER FAILED. THE ENGINE WAS DISASSEMBLED AND THE CRANKSHAFT WAS MAGNAFLUXED. NO DEFECTS WERE NOTED. THE ENGINE WAS OVERHAULED AGAIN AND HAD ACCUMULATED ABOUT 372 HOURS SINCE THE SECOND OVERHAUL.
Probable Cause: TOTAL FAILURE OF THE CRANKSHAFT DUE TO FATIGUE RESULTING IN A FORCED LANDING AND SUBSEQUENT HARD LANDING.
Accident investigation:
 |
|
Sources:
NTSB MIA94LA017
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 16-Mar-2024 14:40 | ASN Update Bot | Added |
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