Mid-Air Collision in Traffic Pattern at Controlled Airport (N6479D)

Incident Overview and Sequence of Events A high-wing airplane and a low-wing airplane collided in mid-air while operating in the traffic pattern at a controlled airport. The air traffic controller issued traffic advisories to both aircraft, and each pilot acknowledged the advisories. The controller also requested that the low-wing airplane, which was inbound to the airport, to report two miles out on the forty five. The pilot of the low-wing airplane acknowledged the request; however, there was no evidence that the pilot gave the report. The high-wing airplane was in the process of making a right turn from crosswind to the downwind leg when the low-wing airplane, inbound on a 30-degree entry to downwind, impacted the high-wing airplane's left wing with its propeller and lower engine cowling. The high-wing airplane subsequently lost control, the flight instructor recovered, and conducted an emergency landing in a desert area adjacent to the airport. The low-wing airplane continued to the airport and landed without further incident.