Background
An aircraft operating an ambulance flight received special permission to proceed despite poor weather conditions. Visibility at the time was below the required minimums for standard operations.
Accident Sequence
En route to its destination, the crew encountered snowfall and icing conditions. The aircraft subsequently crashed in the Nazimovo region.
Search and Recovery
When the aircraft failed to arrive at its destination, search and rescue operations were initiated. After several days without any sign of the aircraft or its four occupants, the search was abandoned. The wreckage was eventually discovered on 18 June 1986 in an isolated, wooded area.
Investigation Findings
Examination of the crash site determined that the aircraft had struck tree tops at a 30° nose-down angle before impacting the ground in a wooded area.