On August 3, 1998, at 1040 central daylight time, a Cessna 152 airplane, N93116, owned and operated by Airman Flight School of Norman, Oklahoma, was substantially damaged during landing at Westheimer Field, Norman, Oklahoma. The student pilot, who was the sole occupant, was not injured. Visual meteorological conditions prevailed, and no flight plan was filed for the Title 14 CFR Part 91 supervised solo instructional flight. According to the flight instructor who was supervising the flight from the ramp, the student pilot was performing touch and go landings. He observed the first touch and go to be "ok." During the second approach, the instructor noticed that the student flared "improperly" and made a go around without touching down. On the third touch and go, he observed the student flare "improperly" again. Following a hard landing, the aircraft began to porpoise. While attempting to recover, the propeller struck the ground and the nose landing gear collapsed. Structural damage found by a FAA inspector was a buckled engine firewall, and wrinkled lower fuselage skin.