Aviation Accident Summary FTW85FA130

SAN ANTONIO, TX, USA

Aircraft #1

N9664F

HUGHES 269C

Analysis

THE ACCIDENT OCCURRED DURING A ZERO GROUND SPEED PRACTICE AUTOROTATION. A HIGH SINK DEVELOPED AFTER AN ATTEMPT TO CORRECT FOR DECREASING ROTOR RPM, THE HELICOPTER CONTACTED THE GROUND TAIL FIRST AND ROLLED OVER AFTER THE MAIN ROTOR SEVERED THE TAIL BOOM. AN EXPERIENCED HELICOPTER PLT WHO WITNESSES THE ACCIDENT STATED THAT THE AUTOROTATIONS WERE TERMINATED ABRUPTLY WITH AN EXTREMELY NOSE HIGH ATTITUDE.

 

Source: NTSB Aviation Accident Database

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