On July 19, 1999, about 1655 Pacific daylight time, a Cessna 182P, N1990M, registered to and operated by the pilot, was substantially damaged after an aborted go-around at Oakridge State Airport, Oakridge, Oregon. The private pilot and passenger received minor injuries. The aircraft was being operated as a 14CFR91 personal flight. Visual meteorological conditions prevailed and a VFR flight plan was on file. The flight originated from McNary Field, Salem, Oregon, approximately 25 minutes prior to the accident. There was no fire and no report of an ELT actuating. The pilot reported that while on final approach to runway 27, the aircraft encountered a downdraft. The aircraft touched down hard on the runway and bounced approximately 30 feet back into the air. The pilot added full power and initiated a go-around, but elected to abort the procedure. The aircraft touched down approximately 150 feet north of the runway and nosed over, causing substantial damage to the aircraft's wings, empennage and fuselage. An FAA inspector from the Portland, Oregon, Flight Standards District Office inspected the aircraft after the accident and reported that there was no evidence found to indicate a mechanical malfunction or failure.