Accident Overview
A student pilot was practicing touch-and-go landings when the aircraft's engine failed at an altitude of approximately 300 feet. The failure occurred shortly after the completion of three touch-and-go landing cycles. The pilot executed a forced landing, during which the airplane collided with a fence, a pole, and shrubbery.
Engine Examination
Subsequent examination of the engine revealed several discrepancies. The accelerator pump discharge tube was missing from the carburetor. Additionally, the bottom spark plugs were found to be severely fouled. The magnetos installed on the engine were not approved for that particular engine model.
Cause Determination
The reason for the engine failure was not determined. The investigation did not establish a definitive causal link between the observed anomalies and the loss of power.