Approach and Go-Around
The pilot was meeting friends at the airport. The friends and their pilot had arrived first and were waiting at the departure end of runway 03. The airplane approached on a straight-in to runway 03. The witnesses thought that everything looked good on the approach. Due to a hump in the runway, they lost sight of the airplane just before it would have touched down. They then saw the airplane climbing back up on a go-around.
Maneuvering and Loss of Control
As the airplane came abeam of their position, the witnesses observed it enter a steep banked left turn at an angle of bank they estimated between 60 and 80 degrees. At this point the landing gear was still down and the altitude was 200 feet above the ground. The witnesses saw the airplane's nose suddenly drop and the airplane then descended rapidly to the ground.
Post-Accident Examination
No evidence of a preimpact mechanical malfunction or failure was found during detailed examination of the airframe systems and engines.
Probable Cause
The official findings stated that the probable cause was the pilot's failure to maintain an adequate airspeed while maneuvering during a go-around, which resulted in a stall.