ANCHORAGE - The pilot of an airplane that crashed in Denali National Park last year told investigators that a downdraft struck his plane just before it went down.
Pilot Dan McGregor's assessment is included in a new National Transportation Safety Board report.
The crash killed passenger Gordon Haber, a wildlife biologist and wolf advocate.
The Anchorage Daily News reports it remains unclear whether Haber died as a result of the crash or the fire that broke out afterward.
The airplane crashed on Oct. 14, 2009 as McGregor and Haber tracked radio signals from collars of the Toklat wolf pack.
McGregor says his Cessna 185 passed over a ridge, flying about 500 to 800 feet above the ground, and had turned back toward the area they hoped to observe when the downdraft pushed the plane down.