What happened
During a routine local training flight operating out of Tomsk-Bogashovo Airport, an aircraft entered an uncontrollable state while performing maneuvers. After completing four circuits, the pilot-in-command began a left turn. While maintaining an altitude of approximately 120 meters, the plane reached a bank angle of 20 degrees before experiencing a stall. The subsequent impact occurred roughly 230 meters from the southern threshold of the runway.
The crash resulted in the total destruction of the aircraft due to the force of the impact and a fire that ignited following the collision. There were three fatalities among the crew members on board.
Findings
Official investigations into the accident were unable to establish a definitive cause with absolute certainty. However, investigators did not dismiss the possibility that a jammed aileron control cable may have led to the loss of flight control during the turn.