NTSB Identification: MIA84LA257.
The docket is stored on NTSB microfiche number 27429.
Accident occurred Friday, September 21, 1984 in ORLANDO, FL
Aircraft: CESSNA 152, registration: N65484
Injuries: 2 Uninjured.

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 FLT EXPERIENCED ENG FAILURE AND MADE A FORCED LANDING IN A FIELD, SUBSTANTIALLY DAMAGING THE AIRCRAFT. POST CRASH EXAMINATION OF THE ENGINE REVEALED THE NUMBER THREE CONNECTING ROD SEPARATED FROM THE CRANKSHAFT WHEN THE CONNECTING ROD BOLTS FAILED. METALLURGICAL EXAMINATION OF THE BOLTS REVEALED THEY HAD BEEN SUBJECTED TO EXTREME HEAT CAUSING SOFTENING OF THE BOLT MATERIAL AND SUBSEQUENT FAILURE IN AN OVERSTRESS CONDITION. THE CONNECTING ROD WAS ALSO FOUND TO HAVE BEEN OVERHEATED IN THE AREA OF THE BEARING BETWEEN THE CONNECTING ROD AND CRANKSHAFT INDICATING FAILURE AND OVERHEATING OF THE BEARING.

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

ENGINE ASSEMBLY,CONNECTING ROD..DISCONNECTED


Contributing Factors

TERRAIN CONDITION..ROUGH/UNEVEN


Contributing Factors

ENGINE ASSEMBLY,BEARING..FAILURE,TOTAL


Contributing Factors

ENGINE ASSEMBLY,CONNECTING ROD..OVERTEMPERATURE

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