AFTER MORNING PRACTICE INSTRUCTOR RELEASES STUDENT ON SECOND SOLO AND OBSERVES BOUNCED/HARD LANDING CAUSING DAMAGE TO ACFT.

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AFTER PREFLT; STUDENT STARTED ENG. FLT WAS DUAL; EXTRA FLT TO SATISFY STEEP TURNS; WHICH WERE OUTSIDE PTS ON LESSON 22. TOOK OFF; WENT TO S PRACTICE AREA; SATISFIED STEEP TURNS WITHIN PTS. AT 2000 FT OVER ZZZ1 I SIMULATED ENG FAILURE WITH A SUCCESSFUL APCH TO ZZZ1; FULL STOP LNDG. TAXIED BACK AND TOOK OFF (SHORT FIELD TKOF) AGAIN; ANOTHER SUCCESSFUL LNDG. RETURNED TO ZZZ; CHKED IN WITH ZZZ; ANOTHER SUCCESSFUL LNDG WINDS WERE 210 DEGS AT 5 KTS. CHKED WX WITH STUDENT AND SENT HIM SOLO; AIRPLANE HAD FULL TANKS. I MONITORED ALL HIS STEPS WITH THE RADIO AND HEARD HIM COMING BACK TO ZZZ; SO I WENT OUTSIDE TO WATCH HIS LNDG. HE OVERSHOT THE FINAL; BUT BROUGHT IT BACK AT AROUND 400 FT; WHICH AT THE TIME THE APCH LOOKED STABILIZED; HIS FLAP SETTING WAS FULL DOWN; AND HE LEVELED THE ATTITUDE WITH THE PWR REDUCING AT THE SAME TIME. HIS RATE OF DSCNT LOOKED FINE AND HE TOUCHED DOWN ON THE MAIN WHEELS. BUT I SOON REALIZED THE FLARE WAS TOO ABRUPT AND HE WENT BACK IN THE AIR; UP AROUND 10-20 FT PITCHING DOWN/STALLING HITTING NOSE FIRST. I HEARD A POPPING SOUND WITH A WHITE SMOKE. THE PLANE HAD WINGS LEVELED UNTIL THE NOSE DROPPED MORE; CAUSING THE PROP TO HIT THE GND. AFTER THAT THE WINGS SHOOK; WITH THE R WING HITTING THE GND.