The airplane was substantially damaged at about 1845 Mountain time when its left main landing gear collapsed during the landing roll. The commercial pilot and sole occupant was not injured. Night visual conditions prevailed. The pilot later reported making a normal left traffic pattern. During the landing roll, the pilot thought he “had blown the left tire,” followed by the airplane settling onto its left side a second or two later. Subsequently, the airplane veered to the left and exited the runway before coming to rest upright.
