Accident Details
A single-engine airplane, equipped with skis, was operating a special flight from Yernozero Lake, approximately 108 kilometers northeast of Arkhangelsk. The aircraft was returning 12 fishermen to Arkhangelsk. The takeoff occurred from the icy lake, which was covered with fresh snow.
During the initial climb with flaps set at 30°, the airplane encountered difficulties gaining altitude. At a relatively low speed of 100 km/h, it struck tree tops about 40 meters high located on the shore of the lake. The aircraft, with a high angle of attack, subsequently stalled and crashed in flames in a wooded area.
Occupants and Injuries
On board were two pilots, a passenger, and the 12 fishermen. Both pilots and the passenger sustained serious injuries, while the other 12 occupants were killed. Four days after the accident, the captain died from his injuries.
Investigation Findings
The official investigation determined the probable cause: the crew inadvertently completed the takeoff procedure at too low an airspeed and with an excessive angle of attack for undetermined reasons. This caused the aircraft to climb slowly and adopt a high nose attitude before it struck trees located 1,410 meters after liftoff. The takeoff roll was approximately 428 meters, which was too long for the icy lake whose ice was thawing and covered with fresh snow.