Event Description
During cruise flight, the pilot noticed a loss of oil pressure and an increase in oil temperature on the left engine. In response, the pilot shut down the engine and diverted to the nearest airport. A VOR approach was conducted, but due to the inability to maintain altitude, the pilot was unable to circle to land on the longer runway.
Landing and Overrun
During the landing roll, the airplane overran the end of the runway and contacted rough terrain. The specifics of the runway length, aircraft configuration, and environmental conditions were not reported.
Post-Accident Inspection
Post-accident inspection revealed that the number 4 main journal bearing had spun. Material from the bearing and the damaged crankcase had clogged the oil suction screen. Additionally, washers were found added to the oil pressure relief valve in an attempt to regulate the oil pressure. The engine had been overhauled 350 flight hours prior to the accident.