Approach and Go-Around
On final approach, the pilot of N9975Q received instructions from the tower to execute a go-around because another aircraft on the runway had failed to respond to tower communications. The pilot reported applying full throttle and closing the carburetor heat, at which point the engine sputtered and ceased operation.
Emergency Landing
As the pilot attempted to perform an emergency landing, the non-responsive aircraft remained on the runway, still ignoring tower instructions. To avoid a collision, the pilot banked left and touched down on snow-covered grass. During the landing, the airplane nosed over.
Post-Accident Investigation
A post-accident examination of the engine revealed no mechanical discrepancies. However, investigators noted that the magneto switch was found in the OFF position.