Accident
The aircraft was completing a flight from Pärnu to Tapa Air Base. On board were six crew members and 15 Sukhoi SU-9 pilots, totaling 21 occupants. During the final approach, the crew encountered poor visibility caused by snow showers. The crew failed to realize that their altitude was too low, and a wing struck the chimney of a spirit factory. Subsequently, the aircraft went out of control and crashed in flames in a field located less than 3 km from the runway threshold, in Moe.
Damage and Fatalities
The aircraft was destroyed in the impact and ensuing fire. All 21 occupants were killed.
Investigation and Probable Cause
The official investigation determined that the probable cause of the accident was a poor planned approach on the part of the flying crew.