Accident
On a cargo flight from Nizhneangarsk Airport to Dovyren and Irkana, a single-engine airplane departed at 0843 local time carrying six diesel drums. Twelve minutes into the flight, the crew reported climbing to an altitude of 1,200 meters under good weather conditions. Approximately ten minutes later, the aircraft crashed in a mountainous area 7 to 10 kilometers from Dovyren. After the aircraft failed to arrive at Dovyren, search and rescue operations were initiated, and the wreckage was located the following day. Both crew members were killed.
Investigation and Probable Cause
The official investigation determined that the accident was caused by an in-flight failure of one of the propeller blades. The failed blade struck and broke the windshield. Due to low visibility caused by snowfall and the aircraft's position over mountainous terrain, the crew was unable to execute an emergency landing. The propeller blade failure was attributed to faulty manufacture.