What happened
During a geophysical survey flight departing from Novosibirsk-Severny Airport, the crew experienced a failure of the right engine. Following the malfunction, the flight crew made several unsuccessful attempts to restart the engine rather than feathering the propeller. This failure to feather resulted in significant aerodynamic drag, causing the aircraft type to lose altitude and airspeed.
As the aircraft descended, the crew began reinstalling various mission-related probes inside the cabin. At an altitude of approximately 330 meters, the plane entered a stall and impacted a forested region situated between the villages of Morozovo and Tavolgan. The impact resulted in the total destruction of the aircraft type. The accident resulted in five fatalities and three injuries among the crew members.
Findings
Investigations into the engine failure revealed that the right engine ceased functioning because the fuel selector had been set to a tank that contained no fuel. Additionally, the investigation highlighted inadequate crew coordination and a failure to adhere to established operational procedures during the emergency.