ASN Wikibase Occurrence # 362373
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| Date: | Sunday 28 February 1993 |
| Time: | 19:50 LT |
| Type: |  Beechcraft N35 |
| Owner/operator: | Private |
| Registration: | N1354Z |
| MSN: | D-6774 |
| Year of manufacture: | 1961 |
| Total airframe hrs: | 4032 hours |
| Engine model: | CONTINENTAL IO-470N |
| Fatalities: | Fatalities: 0 / Occupants: 2 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | Fort Meade, FL -
 United States of America
|
| Phase: | Landing |
| Nature: | Private |
| Departure airport: | Naples, FL (KAPF) |
| Knoxville, TN (KDKX) | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
DURING CRUISE FLIGHT, THE ENGINE EXPERIENCED A PARTIAL LOSS OF POWER. DURING THE DESCENT FOR A PRECAUTIONARY LANDING, THE ENGINE QUIT AND THE PROPELLER STOPPED. THE PILOT PERFORMED A FORCED LANDING ON A ROAD, AND DURING THE LANDING ROLL THE RIGHT WING COLLIDED WITH A ROAD SIGN. THE AIRPLANE VEERED TO THE RIGHT, COLLIDED WITH A FENCE THEN CAME TO REST. EXAMINATION OF THE ENGINE REVEALED THAT THE CRANKSHAFT FAILED NEAR THE REAR COUNTERWEIGHT. METALLURGICAL EXAMINATION REVEALED THAT IT FAILED DUE TO FATIGUE WHICH EMANATED FROM A SUBSURFACE ORIGIN. REVIEW OF THE ENGINE LOGBOOKS REVEALED THAT THE CRANKSHAFT WAS THE ORIGINAL WHEN THE ENGINE WAS MANUFACTURED ON APRIL 14, 1961. THE ENGINE HAD ACCUMULATED 4,032 HOURS TOTAL TIME, AND HAD BEEN OVERHAULED TWO TIMES, THE LATEST OCCURRING IN 1986. AT THAT TIME THE CRANKSHAFT WAS MAGNAFLUXED. THE ENGINE HAD ACCUMULATED 1,032 HOURS SINCE THE LATEST OVERHAUL.
Probable Cause: THE COLLISION WITH A ROAD SIGN DURING A FORCED LANDING. CONTRIBUTING TO THE ACCIDENT WAS THE TOTAL LOSS OF ENGINE POWER DUE TO FATIGUE FAILURE OF THE CRANKSHAFT.
Accident investigation:
 |
|
Sources:
NTSB MIA93LA077
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 17-Mar-2024 20:39 | ASN Update Bot | Added |
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