What happened
During the final approach phase toward the Yunkyur (Sartan) Airstrip, the crew encountered a critical mechanical failure when the engine control lever became disconnected from its mechanism. In response to this loss of control over the engine, the flight crew initiated an emergency procedure to perform a landing in the nearby tundra area.
The aircraft subsequently crash landed a short distance from the airfield. While the impact resulted in the aircraft being damaged beyond repair, all 14 occupants were successfully evacuated from the wreckage without life-threatening consequences. Among those rescued, three passengers sustained minor injuries during the incident.
Findings
Investigations into the mechanical failure revealed that the disconnection of the engine control lever was a direct result of faulty maintenance performed on the aircraft prior to the flight.