What happened
The incident occurred during a flight intended to evaluate the pilot's qualifications for a position as a glider tow pilot. The purpose of the flight was to assess the pilot's proficiency in performing a short-field landing maneuver.
During the approach phase, the pilot attempted to execute a precise short-field landing technique. On the final approach segment, the aircraft descended to an altitude between 10 and 15 feet above ground level. This descent occurred approximately 200 feet prior to reaching the runway threshold. At this low altitude, the aircraft experienced an aerodynamic stall.
The investigation
Post-incident analysis focused on the flight dynamics during the approach. The environmental conditions were noted as calm wind, which typically simplifies landing parameters but requires precise airspeed control. The stall occurred at a critical phase of flight where recovery altitude was minimal.
Findings
The primary factor contributing to the event was the pilot's decision to demonstrate a specific maneuver during an evaluation. The aircraft stalled due to insufficient airspeed or excessive pitch attitude while attempting to maintain a steep descent profile on short final approach. The calm wind conditions did not contribute to the stall but highlighted the precision required for such maneuvers.
Safety message
Pilots should exercise extreme caution when demonstrating specific landing techniques during evaluation flights. Maintaining adequate energy and airspeed margins is critical, particularly when operating near the ground on short final approach.