JACKSONVILLE, FL, USA
N90270
HUGHES 269A
THE INSTRUCTOR PLT WAS DEMONSTRATING A HOVERING AUTOROTATION LANDING WITH FORWARD MOVEMENT, WHEN, AFTER THE THROTTLE WAS CLOSED, THE HELICOPTER HUNG IN THE AIR. FORWARD CYCLIC WAS THEN APPLIED WHEN HE REALIZED THAT THE ROTOR RPM BEGAN TO DETERIORATE. THE HELICOPTER THEN CONTACTED THE GROUND IN A SLIGHT NOSE LOW ATTITUDE, AFTER WHICH, REAR CYCLIC WAS APPLIED. THE MAIN ROTOR BLADES THEN SEVERED THE TAIL BOOM DUE TO THE LOW ROTOR RPM AND REAR CYCLIC INPUT. THE HELICOPTER SPUN APRX 90 DEGREES TO THE LEFT & CAME TO REST.
Source: NTSB Aviation Accident Database
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