Accident Overview
Less than one minute after departing Kuybyshev Airport, while climbing to an altitude of 40–50 meters, the airplane experienced a stall. It then banked to the left and crashed into a snow-covered field located 2,300 meters beyond the runway end. At the time of the accident, the pilot-in-command was under training, with an instructor occupying the right seat.
Casualties and Injuries
All nine crew members and 16 passengers on board were killed in the crash. Additionally, 14 individuals sustained serious injuries. Several hours after the accident, five of the survivors succumbed to their injuries and died.
Investigation and Probable Cause
The official investigation determined that the exact cause of the accident could not be established with certainty. However, investigators believe the loss of control resulted from a malfunction of the attitude indicator. It was likely that the instrument was not fully operational because the accident occurred less than two minutes after the engines had been started. There was an assumption that water had entered the attitude direction indicator (ADI), causing it to fail.