N737PD

The solo student pilot reported that she was practicing takeoffs and landings. During landing, the airplane touched down hard and bounced back into the air. It then stalled and porpoised several times, before the nosegear collapsed and the airplane came to rest upright on the runway. The student pilot reported no preimpact mechanical malfunctions with the airplane and examination of the airplane by a Federal Aviation Administration inspector did not reveal any. The inspector observed damage to the propeller, nosegear assembly, and firewall. The recorded weather near the accident site, about the time of the accident, was a headwind at 8 knots.