LISBON, OH, USA
N984B
BELL 47G-2
THE HELICOPTER ROLLED OVER AS IT WAS LIFTING OFF FROM A TRANSPORT TRAILER. A POST-CRASH EXAM REVEALED THAT THE LEFT REAR TIE-DOWN STRAP ON THE TRAILER WAS WRAPPED AROUND ONE OF THE HELICOPTER SKIDS. THE GROUND CREWMAN BELIEVED HE HAD REMOVED ALL OF THE STRAPS PRIOR TO THE ATTEMPTED TAKEOFF. THE PLT STATED HE HAD VISUALLY CHECKED ALL TIE-DOWN STRAPS DURING HIS PREFLT. HOWEVER, THERE WAS EVIDENCE THE LEFT REAR TIE-DOWN STRAP (WHICH WAS ATTACHED TO THE TRAILER) HAD NOT BEEN UNHOOKED PROPERLY. THE PLT ACKNOWLEDGED THAT A HANDS-ON INSPN OF THE STRAP MAY HAVE PREVENTED THE OCCURRENCE.
Source: NTSB Aviation Accident Database
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