POMPANO BEACH, FL, USA
N5119N
HUGHES 369D
THE CFI ACTING AS A CHECK PILOT WAS OBSERVING THE RATED TRAINEE PERFORM 180 DEGREE AUTOROTATIVE LANDINGS TO TOUCH DOWN. AFTER TOUCHDOWN ON THE SIXTH AUTOROTATION THE MAIN ROTOR BLADES CONTACTED THE TAIL BOOM.
IMPROPER COLLECTIVE INPUT BY THE PILOT-IN-COMMAND AND INADEQUATE SUPERVISION BY THE CHECK PILOT.
Source: NTSB Aviation Accident Database
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