The summary is chilling:
“The video shows that shortly after departure, the helicopter flew into an area with low clouds and poor visibility. Eventually the commander turned, but the visual references disappeared completely and the helicopter came out of control. Five minutes after departure, the helicopter crashed into a steep mountain side and the two on board perished immediately.
The commander was inexperienced. He had flown a total of 77 hours, including 60 hours at a helicopter pilot training center in the United States. The commander was aware that the flying conditions were poor.”