The commercial pilot was taking off on a passenger flight when the accident occurred. The pilot reported that he lost directional control of the airplane during the takeoff roll, and that the airplane went off the left side of the runway and collided with a snowbank. The airplane sustained structural damage to the fuselage aft of the nosewheel. The pilot reported that after exiting the airplane he discovered that the left main landing gear wheel was locked up and that he was unable to rotate the wheel. The director of operations reported that the left main landing gear wheel and assembly was examined by their mechanics and that no mechanical malfunctions were discovered.

The National Transportation Safety Board determines the probable cause(s) of this accident as follows:

The pilot's failure to maintain directional control of the airplane during takeoff.