What happened
The aircraft was operating a scheduled cargo route from Sverdlovsk to Moscow via Kazan. The payload included cable reels, medical supplies, agricultural equipment, and postal mail, totaling 1,085 kilograms. At the time of the incident, weather conditions were marginal, with a cloud ceiling of 200 meters and visibility limited to approximately 6 kilometers by mist.
During the initial climb phase at an altitude of just 20 meters, the aircraft began to bank left between 25 and 30 degrees. The left wing struck the ground, causing the plane to crash into a snow-covered field located 424 meters from the point of impact. Three crew members were killed in the accident, while the copilot sustained serious injuries.
Findings
Investigations determined that both engines lost power immediately after rotation. This failure was caused by carburetor frosting and ice blockages in the air intakes. Although severe icing conditions were present, local meteorologists underestimated their severity. Consequently, the weather information provided to the flight crew did not accurately reflect the actual atmospheric hazards.