Incident Overview
A pilot and passenger were participating in a flour bombing and power-off spot landing contest. After completing the flour bombing event, the pilot entered a left downwind to land on a north runway.
Weather Conditions
The surface winds were from the west at 10 mph, gusting to 20 mph, with associated downdrafts off the ridge west of the airport.
Sequence of Events
While on final approach, the airplane overshot the course at a low altitude and slow airspeed. The pilot applied power, but continued to increase the bank. Subsequently, the wing stalled and the airplane crashed.
Conclusion
The accident sequence involved a stall following an overshoot and increasing bank angle at low altitude and slow airspeed.