What happened
During a night departure from Sverdlovsk-Koltsovo Airport, an aircraft experienced a mechanical failure approximately one minute after rotation. While climbing at an altitude of roughly 150 meters, the crew encountered an engine failure. The flight crew was unable to successfully shut down the malfunctioning engine or feather the propeller, leading to significant aerodynamic drag.
This imbalance caused the plane to bank to the right and enter an uncontrolled descent. The aircraft struck a field located approximately 2,900 meters beyond the runway threshold at a speed of 440 km/h. The force of the impact caused the airframe to disintegrate, with debris scattered across a 320-meter area. There were 107 fatalities and no survivors among the occupants.
Findings
While investigators could not identify the specific reason for the initial engine failure, they noted that the engine failure occurred during a critical phase of flight, which prevented the crew from maintaining control of the aircraft.