CASA GRANDE, AZ, USA
N38767
HILLER 12-C
THE PLT WAS DEMONSTRATING AUTOROTATIONS TO A TOUCHDOWN ON A DIRT RWY INTO A 5 KT HEADWIND. ON THE FINAL LANDING HE SAID THAT THE TOUCHDOWN FELT THE SAME AS OTHERS HE HAD DONE.SPEED AT TOUCHDOWN WAS 15 MPH AND THE HELICOPTER SLID FORWARD IN A STRAIGHT LINE FOR A DISTANCE OF ABOUT 3 HELICOPTER LENGHTS. AS IT CAME TO A STOP THE LEFT SIDE OF THE FORWARD CROSSOVER TUBE FAILED, THE LEFT SKID COLLAPSED, AND A MAIN ROTOR BLADE STRUCK THE TAIL BOOM.
Source: NTSB Aviation Accident Database
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