What happened
During the landing roll on runway 27, the pilot experienced a loss of control that resulted in the aircraft impacting a snow bank. The pilot reported that the airplane initially veered to the right side of the runway due to excessive right aileron input. After neutralizing the ailerons and attempting to steer using the rudder, a combination of a crosswind and a gust of wind lifted the right wing.
This caused the aircraft to veer toward the left side of the runway, where it encountered ice on the surface. The airplane subsequently slid into a snow bank located alongside the runway. At the time of the accident, the pilot reported winds from 330 degrees at 12 knots, gusting to 17 knots. A weather observation recorded six minutes after the event noted winds from 320 degrees at 9 knots.
The investigation
An inspection of the runway surface revealed that while the center of the runway remained clear, there were patches of ice present along the left side of the runway. Additionally, the snow accumulation along the runway edges was deep enough that only the tops of the runway lights could be seen.