What happened
During the initial phase of flight, the pilot experienced a sudden loss of control as the airplane rotated for takeoff. At this critical moment, the pilot's seat unexpectedly slid backward along its track. This movement altered the pilot's position relative to the controls, resulting in an inability to maintain the intended flight path.
Following the rotation, the aircraft veered off the airstrip and impacted trees located near the departure end of the runway. The collision with the vegetation caused significant damage to the airplane. No further details regarding injuries or fatalities were provided in the source material.
The investigation
An inspection was conducted to determine the mechanical cause of the seat failure. An FAA inspector examined the seat track mechanism and reported that the pin holes were within the manufacturer's specified limits. This finding suggested that wear or excessive play in the mounting hardware was not the primary factor contributing to the incident.
Findings
The pilot stated that the installation of a safety lock on the seat track could have prevented the accident. This indicates that the lack of a secondary retention mechanism allowed the seat to move under load. The investigation focused on the mechanical integrity of the seat mounting system and the operational procedures regarding seat locking.
Safety message
The incident highlights the importance of ensuring that all aircraft seats are properly secured before flight. Pilots should verify that seat tracks are locked and that any safety locks are engaged to prevent movement during critical phases of flight.