Incident Overview
According to the pilot, the engine lost oil pressure and seized while the aircraft was at an altitude of 2,000 feet. The pilot notified air traffic control (ATC) and was provided a heading to the nearest airport. However, the pilot reported being unable to reach that airport, so ATC gave a heading to a private airport located 4 to 5 miles closer.
Maneuver and Landing
Realizing that he would not make it to the private airport, the pilot decided to land in a pasture. During the approach, the pilot avoided power lines by flying under them. While attempting to clear a fence, the tail of the airplane struck the fence. The aircraft then impacted the field, skidded, and struck another fence before coming to a stop.
Engine Examination
Post-incident examination of the engine revealed a hole in the crankcase near the number 4 cylinder. The number 4 connecting rod partially protruded through the hole and showed signs of heat distress. Internal examination indicated high heat distress due to a lack of lubrication. The oil pump was found intact, and the oil passages were clear. The source of the loss of lubrication could not be determined.