Davenport, IA, USA
N57FD
HILLER UH-12C
WHILE DEMONSTRATING AN AUTOROTATION TOUCHDOWN, A TAILBOOM STRIKE WAS EXPERIENCED. DAMAGE WAS INCURRED TO THE TAILBOOM, THE TAIL ROTOR DRIVE SHAFT, AND ONE MAIN ROTOR BLADE. THE CFI SAID EVERTHING FELT NORMAL DURING TOUCHDOWN AND BELIEVED THE SOFT TERRAIN CONDITIONS CONTRIBUTED TO THE ACCIDENT.
Source: NTSB Aviation Accident Database
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