What happened
Following departure from Nizhnevartovsk Airport, the flight crew encountered significant difficulties regarding the stability and control of the aircraft. In response to these developing issues, the pilot-in-command initiated an emergency descent to attempt a landing.
During this maneuver, the aircraft impacted a marshy area located in the vicinity of the airfield. The impact was followed by a fire that consumed the wreckage. Despite the severity of the crash and the subsequent flames, all occupants managed to evacuate the aircraft without any reported fatalities or injuries.
Findings
Investigations into the accident concluded that the primary reason for the loss of control was that the aircraft had not been adequately cleared of accumulated snow and ice before its takeoff from the airport.