Incident Summary
The pilot, occupying the right front seat with a passenger in the left, reported observing a low oil pressure reading on the engine gauge. Recalling a previous emergency landing on a golf course because of oil starvation, the pilot decided to perform a precautionary landing on a golf course. The aircraft overshot the intended approach. The pilot then initiated a go-around. During the go-around, the aircraft collided with trees that stood at a height of 185 feet.
Investigation Findings
The subsequent investigation revealed that the golf fairways were situated in a narrow ravine surrounded by high terrain, making the site almost impossible to use as a landing area. Examination of the engine showed no evidence of mechanical or thermal distress that would indicate oil loss. A small oil spot was found at the point where the aircraft first struck the ground. That oil spot was traced to the number 4 cylinder rocker box oil return line, which had separated at the case end. No abnormalities were found in the power plant.