On May 14th, 2005 at 7.08 AM (local time), a serial Ecureuil/AStar AS350 B3 piloted by the Airbus Helicopters X-test pilot Didier Delsalle, landed at 8,850 meters (29,035ft) on the top of the Mount Everest (Kingdom of Nepal).
It wass also a world altitude takeoff record.
It has been validated by the World Air Sports Federation. https://www.fai.org/record/didier-delsalle-fra-11596
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