Incident Overview
A private pilot was repositioning an airplane to its new owners. While in cruise flight, the pilot noticed a loss of oil pressure. Approximately five minutes later, the engine ceased operation. The pilot selected a rough field and performed a forced landing. During the landing roll, the left wing and stabilizer struck a tree.
Postaccident Examination
A postaccident engine teardown revealed an oil leak in the area of the oil filter mount. The engine oil level had depleted to two quarts. Examination of the number 5 and 6 rod bearings showed evidence of loss of lubrication, overheating, and ultimate failure.
Pilot Report
The pilot reported that he added two quarts of oil at a previous stop. However, the investigation was unable to verify this reported addition of oil.