On June 7, 2005, at approximately 1330 mountain daylight time, a Piper PA-22-150, N5814D, was substantially damaged when it ground looped during landing roll at Ontario Municipal Airport, Ontario, Oregon. The commercial pilot and his two passengers were not injured. The pilot/owner was operating the airplane under Title 14 CFR Part 91. Visual meteorological conditions prevailed for the local personal flight which originated approximately 30 minutes before the accident. The pilot had not filed a flight plan. The pilot said that he was practicing takeoff and landings with a 10 knot crosswind for proficiency. He was using runway 14, and he said the wind was 220 degrees at 10 knots. He said that he had done 5 landings without any problems, and on the final landing the plane bounced and went into a three point landing . Next, the upwind wing started to come up, and he applied full aileron correction but could not stop the airplane from turning into the wind. The left wing tip impacted the ground wrinkling the wing, and the left main landing gear strut was bent.