Fatal aviation accident: Canadair CL-600-2A12 near Montrose (2004-11-28)
Probable cause: the flight crew's failure to ensure that the airplane’s wings were free of ice or snow contamination that accumulated while the airplane was on the ground, which resulted in an attempted takeoff with upper wing contamination that induced the subsequent stall and collision with the ground. A factor contributing to the accident was the pilots’ lack of experience flying during winter weather conditions.