"The Seaking in question was working perfectly at the time of the crash. The pilot had been asked to relocated aircraft for a static display, by the airshow organizers. Instead of having the aircraft towed to a new position, the pilot elected to airtaxi the aircraft. During the relocation the pilot put the helicopter into a hover. The day was hot and helicopters do not produce lift very well, while hovering on hot days. Pilots train to avoid this situation because the air being forced down from the rotor, rotates down, out and back up. If the aircraft is to close to the ground, the rolling air moving up, is then drawn back down into the rotor. The aircraft was literally pushed down because of this phenomenon. The rotors, with the now rolling hot air, will generally not produce enough lift under the aircraft to keep it aloft. The crash investigation results were Pilot error."

Ultimately the the sideways velocity of the chopper causes it roll to the left. Once the main rotor blade strike the dirt, it is all over. (15 second MPEG, 1.5 MB)