皇冠体育app

Summary:

Shortly after takeoff, the pilot realised that the left front door was not properly closed so decided to make a precautionary landing. During the approach the helicopter developed a high rate of descent which the pilot was not able to arrest. 皇冠体育app helicopter stuck the ground and rolled over. Three of the occupants sustained minor injuries.

皇冠体育app investigation found the helicopter had made a downwind approach to land and was likely to have entered a vortex ring state. 皇冠体育app pilot was not aware he was making a downwind approach.

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