What happened
Following the completion of two scheduled flights in the area, an engine test was requested to address mechanical issues. During this procedure, while the aircraft was stationary on the ground, a technician began the testing process but failed to secure the wheels with chocks. As power was applied to the engine, the aircraft began to move unexpectedly. The pilot, who was positioned by the door during this period, fell from the aircraft as it rolled.
Following the initial ground incident, the aircraft type entered a flight phase where it reached an altitude of approximately 12 meters. During the climb, the plane performed a sharp left-hand turn, which resulted in a stall. The aircraft subsequently crashed in an inverted position. The technician, who was the only person on board during the flight portion, was killed in the accident.
Findings
Investigations into the accident revealed that the movement of the aircraft was triggered because the wheels were not properly secured prior to applying power for the engine test. Additionally, it was determined that during the period following liftoff, a shift in cargo toward the rear of the cabin occurred, which contributed to the loss of control and the eventual stall.