NTSB Identification: DEN85LA029.
The docket is stored on NTSB microfiche number 26052.
Nonscheduled 14 CFR
Accident occurred Sunday, November 18, 1984 in SNOWVILLE, UT
Aircraft: CESSNA 182P, registration: N21037
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.

THE ACFT NOSED OVER DURING AN OFF ARPT FORCED LANDING AFTER THE ENGINE FAILED IN CRUISE FLT. THE ENGINE WAS DISASSEMBLEDAND EXAMINED ON 12/3/84. THE #3 AND #4 PISTON RODS WERE SEPARATED FROM THEIR CRANCKSHAFT JOURNALS. MOST OF THE ROD BEARINGS WERE WORN. THE ACFT HAD BEEN OPERATING IN AN ENVIROMENT WITH COLD WINTERS. THE ENGINE OPERATIONS MANUAL STATES THAT SAE 30 WEIGHT OIL OR 10W-30 ARE RECOMMENDED FOR OPERATIONS IN TEMPERATURES BELOW 40 DEGREES F. THE ENGINE HAD 40 WEIGHT OIL PUT IN AT THE LAST SEVERAL SERVICINGS. THE TEMPERATURE WAS BELOW 40 DEGREES THE DAY OF THE ACCIDENT.

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

ENGINE ASSEMBLY,CONNECTING ROD..FAILURE,TOTAL

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

MAINTENANCE,SERVICE OF AIRCRAFT/EQUIPMENT..IMPROPER..OTHER MAINTENANCE PERSONNEL


Contributing Factors

PROCEDURES/DIRECTIVES..NOT FOLLOWED..OTHER PERSON

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