WARRENTON, OR, USA
N9380F
HUGHES 269B
THE PILOT OF THE HUGHES 269B HELICOPTER WAS PRACTICING SOLO AUTOROTATION LANDINGS. DURING THE FOURTH AUTOROTATION THE ROTOR SPEED HAD DROPPED AND THE AIRCRAFT IMPACTED IN THE SAND DURING THE RECOVERY ATTEMPT.
THE PILOT FAILED TO MAINTAIN PROPER ROTOR SPEED DURING A SIMULATED AUTOROTATION.
Source: NTSB Aviation Accident Database
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