Incident Details
During the landing phase, the aircraft was being flown by a pilot who had just executed an Instrument Landing System (ILS) approach to within approximately two miles of the runway. At that point, the pilot transitioned to a visual approach, which became erratic. The flight path was varied from side to side, prompting verbal corrections from the more experienced co-pilot.
Sequence of Events
The flare maneuver was started at an excessive height. In response, the co-pilot added engine power to soften the landing impact. After the aircraft touched down, it veered sharply, executing a 180-degree turn before colliding with a snowbank adjacent to the runway.
Outcome
The landing gear collapsed as a result of the combined effects of side loading during the veer and the impact with the snowbank.