What happened
The aircraft touched down near the midway point of a soft gravel runway. Recognizing the need to abort the landing, the pilot applied additional power to initiate a go-around maneuver. However, the soft surface significantly impeded acceleration, preventing the airplane from gaining sufficient airspeed to become airborne before reaching the end of the available pavement.
The investigation
As the aircraft approached the runway threshold, the pilot reduced engine power to idle and applied the brakes in an attempt to stop. Despite these efforts, the aircraft continued forward past the end of the runway. The impact caused the nose gear to collapse, resulting in a nose-over attitude for the aircraft.
Findings
The primary factor contributing to the accident was the insufficient acceleration on the soft gravel surface during the go-around attempt. The pilot's inability to achieve lift before the runway ended led to the overrun and subsequent structural damage.