Accident Sequence
The takeoff from Ufa Airport was conducted in marginal weather conditions. The airplane was unable to achieve sufficient speed. Despite this, the captain decided to rotate. Immediately after liftoff, the aircraft assumed a high angle of attack, causing the base of the tail to strike the ground. The aircraft then bounced several times before crash landing. It overran the runway and came to rest in a garden, located 290 meters past the runway end and 220 meters to the left of the extended centerline. The aircraft was destroyed.
Injuries and Fatalities
All four crew members were seriously injured in the accident. Five hours after the crash, the captain succumbed to his injuries. The radio operator died 38 hours later.
Probable Cause
According to the official investigation, the probable cause of the accident was poor flight preparation on the part of the crew, who decided to take off with a contaminated aircraft. At the time of the accident, the wings, stabilizers, and tail were covered with an excessive accumulation of snow, which reduced drag, limited thrust and performance, and modified the aerodynamic characteristics.