What happened
During the initial climb phase following takeoff, the aircraft experienced an aerodynamic stall. The plane subsequently impacted a forested region situated approximately 2,400 meters beyond the threshold of the runway. A post-crash fire ignited upon impact, resulting in the total destruction of the airframe.
The accident resulted in two fatalities, including one crew member and one passenger. Additionally, sixteen other individuals on board sustained injuries during the event.
Findings
Investigations into the wreckage revealed a mechanical failure within the engine components. During the disassembly of the port propeller, inspectors identified that the distributor valve had fractured from its junction at the engine crankshaft, with the initial threads having failed. This structural failure was attributed to metal fatigue.
The primary factor in the accident was the rupture of the port propeller's distributor valve. The investigation also noted that the presence of difficult terrain, along with specific wind and altitude conditions, contributed to the severity of the outcome.