AURORA, IL, USA
N3625B
HUGHES 300C
WHILE THE STUDENT & INSTRUCTOR (CFI) WERE ON AN INSTRUCTIONAL FLT, A DECISION WAS MADE TO PRACTICE AN AUTOROTATION & SIMULATED TAIL ROTOR FAILURE. RPRTDLY, A SMOOTH TOUCHDOWN WAS MADE, BUT THE HELICOPTER BEGAN TO VIBRATE. THE CFI ELECTEDTO GET THE HELICOPTER AIRBORNE AGAIN, BUT STATED THAT THERE WAS INSUFFICIENT RPM TO MAINTAIN FLT. SUBSEQUENTLY, THE HELICOPTER MADE TWO 360 DEG TURNS TO THE RGT & CONTACTED THE GROUND. NO PREIMPACT FAILURE OR MALFUNCTION OF THE HELICOPTER WAS RPRTD.
Source: NTSB Aviation Accident Database
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