Accident Overview
During the climbout phase of a touch-and-go maneuver, at approximately 500 feet above ground level, the aircraft experienced a sudden loss of engine power. The pilot executed a forced landing onto a rough field. During the landing, the left wing struck a small tree, causing the aircraft to spin around. The impact resulted in the collapse of both the nose gear and the main landing gear.
Engine Examination
A subsequent examination of the aircraft's engine revealed that the number four exhaust valve had failed at the stem. Additionally, the total operating time on the engine was found to be beyond the manufacturer's recommended overhaul interval.
Conclusion
The loss of engine power was attributed to the failure of the number four exhaust valve. The forced landing and subsequent ground impact resulted in structural damage to the landing gear and wing.