Background
The pilot departed under visual flight rules (VFR) and flew to his intended destination. Upon arrival, he found the airport obscured by fog. He then requested and was issued an instrument flight rules (IFR) clearance to conduct an instrument landing system (ILS) approach to another airport.
Flight
During the approach, the pilot was observed emerging from clouds at approximately 100 feet above ground level (AGL) in a left bank and yaw. Subsequently, the aircraft crashed short of the runway and to the left of the centerline.
Accident
After the crash, a fire ensued, partially consuming the wreckage. The pilot, who was the sole occupant of the aircraft, was killed.
Investigation
Examination of the airplane, engines, and propellers revealed no preexisting failures.
Probable Cause
The official probable cause was determined to be a loss of control in flight by the pilot for undetermined reasons.