On August 22, 1994, at 0840 hours mountain standard time, a Cessna 172, N172ST, exited the left side of runway 22R and collided with a ditch and nosed-over at Falcon Field, Mesa, Arizona. The noncertificated student pilot was conducting a local solo visual flight rules instructional flight. The airplane, operated by Superstition Air Service, Falcon Field, sustained substantial damage. The student pilot received minor injuries. Visual meteorological conditions prevailed, but with a direct 90-degree left crosswind component. The flight originated at Falcon Field at 0825 hours. The operator told National Transportation Safety Board investigators during a telephone interview on August 23, 1994, that the student pilot was conducting touch-and-go takeoffs and landings. On the accident landing, the local controller cleared the student pilot for the option. The student pilot landed normally. During the landing rollout, the airplane veered to the left and its nose gear collided with a ditch and nosed-over.