What happened
The incident occurred during the landing roll phase of flight. As the aircraft touched down and began its rollout, the student pilot operating the controls allowed the airplane to drift toward the right side of the runway. In an effort to correct this deviation and regain directional control, the student made a sharp overcorrection.
This abrupt input caused the aircraft to begin ground looping to the left. At this critical moment, the instructor pilot, who was seated in the right-hand seat, attempted to intervene and take control of the aircraft to prevent a potential accident. Despite the intervention, the instructor was unable to successfully regain control of the airplane before the event concluded.
The investigation
Following the incident, an analysis of the events was conducted based on the instructor's report. The primary mechanical and operational finding centered on the sequence of control inputs during the landing roll. The investigation highlighted that the initial directional deviation was managed by the student pilot, but the subsequent overcorrection exacerbated the loss of control.
Findings
The official probable cause identified a specific failure in crew coordination and timing. The instructor reported that he was slow to take corrective action when the situation deteriorated. This delay prevented him from effectively countering the ground loop initiated by the student's overcorrection. The combination of the student's loss of directional control and the instructor's delayed response resulted in the unsafe event.
Safety message
This incident underscores the importance of timely intervention by the pilot monitoring or the instructor during critical phases of flight, particularly during landing rolls where directional control is challenging. Effective communication and immediate corrective action are essential to maintaining safety when a student pilot encounters difficulties with aircraft handling.