What happened
During the final approach phase of the flight, the aircraft descended to an inadequate altitude. While navigating the terrain, the plane made contact with the side of Mt Phou Bai at an elevation of 7,500 feet. The impact occurred while the crew was attempting to complete their landing sequence.
There were no survivors of the accident. The crash resulted in six fatalities, accounting for the entire crew on board.
Findings
Investigations into the crash indicate that the pilot maintained the approach at a height that was too low for the surrounding topography. The primary factor in the accident was the insufficient altitude maintained during the descent toward the landing site.