NTSB Identification: ATL83LA023
14 CFR Part 91: General Aviation
Accident occurred Monday, November 01, 1982 in EXMORE, VA
Probable Cause Approval Date: 11/01/1983
Aircraft: STINSON 108-3, registration: N981C
Injuries: 3 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.

DURING FLIGHT, THE PILOT NOTICED A DECREASE IN OIL PRESSURE AND ELECTED TO LAND AT AN ALTERNATE AIRPORT. WHILE EN ROUTE, A COMPLETE LOSS OF OIL PRESSURE OCCURRED AND THE PILOT EXECUTED AN EMERGENCY LANDING IN AN OPEN FIELD. WHILE ON THE LANDING ROLL, THE AIRCRAFT HIT A SOFT SPOT AND NOSED OVER. AN EXAMINATION OF THE ENGINE REVEALED THERE WAS A DIMPLE AND HOLE IN THE ROCKER BOX COVER OF THE NO 3 CYLINDER. A LOOSE 3/8-24 HEXAGON JAM NUT (FOR THE INTAKE ROCKER ARM ADJUSTING SCREW) WAS FOUND INSIDE THE ROCKER BOX COVER. THE HOLE AND DIMPLE IN THE ROCKER BOX COVER WERE OPPOSITE OF THE EXHAUST ROCKER ARM ADJUSTING SCREW AND MATCHED THE SIZE AND SHAPE OF THE LOOSE NUT.

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

ENGINE ASSEMBLY,OTHER..LOOSE

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

ENGINE ASSEMBLY,OTHER..PENETRATED

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

FLUID,OIL..EXHAUSTION



Contributing Factors

TERRAIN CONDITION..SOFT

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