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NTSB Report
January 19, 1985 · Hughes 369D · N211EH
Makakilo, HI
Overview
Report Status
Preliminary report
Event Type
Accident
Date
January 19, 1985
Injury Outcomes
4 injuries (4 minor injuries)
Location
Makakilo, HI
Aircraft
Hughes 369D
Tail Number
N211EH
Operator
Royal Helicopters
Injuries
Minor
Aircraft Damage
Destroyed
NTSB Number
LAX85LA116
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.
Full Narrative
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.
Flight
Event TypeAccident
Event Time14:20 HST
Nearest Airport0nm N
Runway0
Flight Plan FiledNone
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftHughes 369D
Tail NumberN211EH
Aircraft CategoryHeli
DamageDestroyed
OperatorRoyal Helicopters
Operating RulePart 135
Engines1
Engine TypeTurboshaft
Engine DetailsAllison · 250-C20B · Turboshaft · 425
Seats5
People & Injuries
Injury Summary4 injuries (4 minor injuries)
Fatal0
Serious0
Minor4
Uninjured0
Total4
Crew 1Age 36 · Second Class
Conditions
ConditionsVMC
LightDaylight
Wind45° @ 2 kt, gusting 3 kt
Visibility30 sm
CeilingNone
Temperature / Dew Point0 C
Altimeter0
Weather SourcePILO