On November 16, 2000, about 1830 mountain standard time, a Piper PA-20, N2186A, sustained substantial damage while landing on runway 32 at Ontario Municipal Airport, Ontario, Oregon. The aircraft is owned by the student pilot, and was being operated as an instructional flight under the provisions of Title 14, CFR Part 91, when the accident occurred. Visual meteorological conditions prevailed and no flight plan was filed. The first pilot, a commercial pilot/certified flight instructor, and the second pilot, a student pilot receiving primary instruction, were not injured. The flight originated from Nampa, Idaho, approximately 30 minutes prior to the accident. During a telephone interview with the NTSB on April 2, 2001, the first pilot reported that he and the student pilot were conducting a night landing on runway 32. He stated that the student pilot flew the approach and made the landing, but when the airplane touched down it bounced back into the air. In an attempt to salvage the landing, the first pilot took control of the airplane. The airplane touched-down a second time and bounced. The first pilot applied corrective actions, however, the airplane nosed over resulting in substantial damage to the wings and empennage. No mechanical anomalies or failures with the aircraft were reported.