Incident Overview
A special flight carrying doctors from Yakutsk to Sangar, with an intermediate stop in Kobyay, suffered an engine failure minutes after departing Yakutsk-Magan Airport. The aircraft was cruising at an altitude of 1,150 meters and a speed of 180 km/h when the engine began to vibrate and lose power. Oil pressure dropped and airspeed decreased.
Emergency Landing
The captain initiated an emergency landing in a swampy area. Upon touchdown, the aircraft rolled approximately 32 meters before nosing over.
Casualties and Injuries
One passenger was killed in the accident. All other occupants sustained injuries, four of which were classified as serious.
Probable Cause
The official investigation determined the probable cause to be engine failure following the failure of the first cylinder and piston due to fatigue.