NTSB Identification: LAX85LA116.
The docket is stored on NTSB microfiche number 28525.
Nonscheduled 14 CFR
Accident occurred Friday, January 18, 1985 in MAKAKILO, HI
Aircraft: HUGHES 369D, registration: N211EH
Injuries: 4 Minor.
NTSB investigators may not have traveled in support of this investigation and used data provided by various sources to prepare this aircraft accident report.
ON AN AIR TAXI FLT, AFTER LANDING AT A PREARRANGED SITE THE PLT SIGNALED TO HIS 3 PAX TO BOARD THE HELICOPTER. AS THE PAX ATTEMPTED TO BOARD FROM THE RIGHT SIDE OF THE ACFT, THE ROTOR BLADES WENT OUT OF TRACK/PHASE. THE ACFT BEGAN UNCONTROLLABLE BOUNCING UP AND DOWN, & THE PAX FLED. THE ACFT BECAME AIRBORNE, COLLIDED WITH A NEARBY FENCE, & ROLLED OVER. ALL 5 BLADES WERE FOUND SEPARATED FROM THE ACFT. EXAM OF THE SWASH PLATE, STRAP PACK & MAIN ROTOR ASSEMBLY REVEALED EVIDENCE OF OVERLOAD FAILURES. NO PHYSICAL EVIDENCE OF A ROTOR BLADE TO FENCE STRIKE WAS FOUND INDEPENDENT OF THE EVENT WHICH OCCURRED WHEN THE UNCONTROLLED ACFT COLLIDED WITH THE FENCE.
The National Transportation Safety Board determines the probable cause(s) of this accident to be:ROTOR SYSTEM..FLUCTUATING
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