Accident Overview
During ground operations preceding an aerial application flight, the pilot surveyed the intended spray area while the airplane was loaded with pesticide. After boarding and starting the engine, the pilot taxied for takeoff without encountering any problems. The airplane departed to the east and leveled off at an altitude between 25 and 50 feet above ground level. The pilot then initiated a steep bank turn to the left, flew over a target field adjacent to the airstrip, and continued banking steeply toward the west.
Stall and Descent
While in the steep turn, the airplane aerodynamically stalled and suddenly descended into terrain in a steep nose-down attitude. Most witnesses did not perceive any unusual engine noises prior to impact. The airstrip was surrounded by rising terrain, and the flaps were in the fully retracted position.
Examination Findings
An examination of the engine, airframe, and systems revealed no evidence of preimpact mechanical deficiencies. However, the shoulder harness belt, which was original equipment, was severely deteriorated and failed during impact. No evidence of pilot incapacitation was found.