Incident
The aircraft, a four-engine airplane, departed Pyongyang Airport on a regular scheduled service to Conakry. It carried 17 passengers and a crew of six. After intermediate stops in Kabul and Cairo, the crew continued to Conakry without any reported incidents.
Descent and Collision
While descending to Conakry-Gbessia Airport, the crew encountered poor weather conditions. The crew failed to realize that the aircraft's altitude was insufficient, and the airplane struck a mountain located in the Fouta-Djalon Mountain Range, approximately 30 kilometers from the airport. The aircraft disintegrated on impact, and all 23 occupants were killed.
Investigation
Official investigation findings indicated that the accident was likely the result of a controlled flight into terrain. The probable cause, as stated in the official report, was that the accident was the consequence of a controlled flight into terrain.