Overview
An aircraft on an ice survey mission crashed in the Vilkitsky Strait after a navigational mistake. The airplane was carrying four scientists and seven crew members, totaling 11 occupants. The purpose of the flight was to assist the passage of ships through the Laptev Sea.
Flight Details
The aircraft was cruising at night at an altitude of 250 meters after overflying Peter Island. During this phase, the navigator committed an error, causing the airplane to deviate from its intended course and fly in the wrong direction.
Accident Sequence
As the aircraft approached the shore, it was flying at an insufficient altitude. It struck the icy and snow-covered ground. After impact, it slid for approximately 180 meters before coming to rest. The accident occurred about 38 kilometers southeast of Cape Chelyuskin.
Rescue and Damage
All 11 individuals on board were rescued. The aircraft, however, sustained damage beyond repair.
Probable Cause
The official investigation determined that the probable cause of the accident was a navigation error.