On July 24, 2004, approximately 1130 mountain daylight time, an AVIAT A-1B single-engine airplane, N991C, was substantially damaged following a loss of control while landing at the Driggs-Reed Memorial Airport (U59), Driggs, Idaho. The airplane was registered to a private individual. The commercial pilot, sole occupant of the airplane, was not injured. Visual meteorological conditions prevailed for the 14 CFR Part 91 personal flight, and a flight plan was not filed. The aircraft had departed U59 at 0900. According to the Pilot/Operator Aircraft Accident Report (NTSB form 6120.1/2), the pilot reported that he was attempting to land on the parallel grass strip to the right of Runway 21. The pilot stated that after touching down the aircraft bounced about 5 or 6 times. The pilot further stated that after applying full power and initiating a go-around the airplane yawed to the right about 30 to 40 degrees, subsequently impacting a fence and nosing over. Post accident examination of the aircraft revealed that both propeller blades were bent, the rudder was bent, and both wings were substantially damaged. At 1050, the weather reporting facility located at the Jackson Hole Airport (JAC), Jackson Hole, Wyoming, located 18 nautical miles southeast of the accident site reported wind 130 degrees at 4 knots, visibility 10 statute miles, sky clear, temperature 17 degrees C, dew point 6 degrees C, and an altimeter setting of 30.38 inches of Mercury.