THE ACFT WAS LANDED HARD, ACCORDING TO WITNESSES, AFTER COMPLETION OF THE FIRST TAKEOFF AND FLT AROUND THE TRAFFIC PATTERN. THE PLT SHUT OFF THE ENG, EXITED THE ACFT & INSPECTED FOR DAMAGE. HE THEN RESTARTED THE ENG AND TOOK OFF AGAIN.THE PLT STATED AFTER THE ACCIDENT THAT THE ACFT HAD LIMITED AILERON CONTROL DURING THIS 2ND FLT. UPON LOOKING THE ACFT OVER FROM THE COCKPIT DURING FLT, THE PLT SAID HE NOTICED THE ANTI-GROUND LOOP RODS WERE BENT AFT WHICH LIMITED THE AILERON TRAVEL SPACE. THE PLT FURTHER STATED THAT HE MANAGED TO FLY THE PATTERN BUT UPON REACHING THE BASE LEG, THE CANOPY CAME OPEN. WHILE THE PLT ATTEMPTED TO CLOSE THE CANOPY, THE ACFT STALLED, SPUN & IMPACTED TREES/GROUND. NO FUEL WAS FOUND IN THE WRECKAGE AFTER THE ACCIDENT, HOWEVER, A LARGE RUPTURE WAS NOTED IN THE FUSELAGE FUEL TANK. THE LEFT WING CONTAINED A 3/8' METAL ROD PROTRUDING DOWNWARD THAT WAS BENT AFT AND WHICH SHOWED EVIDENCE OF HAVING SCRAPED AN ASPHALT SURFACE.