Air transportation safety investigation A25W0045
The occurrence
On 2 May 2025, a Horizon Helicopters Ltd. Airbus AS350B helicopter was conducting a training flight from Whitehorse/Erik Nielsen International Airport (CYXY), Yukon, at approximately 1400 Mountain Standard Time. The training flight was conducted largely in a clearing in a valley approximately 5.5 nautical miles east of the airport. After about an hour of several different training exercises, a series of simulated engine failure exercises (autorotations) were conducted to a large clearing at the base of the valley.
