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NTSB Report
December 18, 1990 · Mcdonnell Douglas 369D · N58240
Keanae, HI
Overview
Report Status
Probable Cause
Event Type
Accident
Date
December 18, 1990
Injury Outcomes
1 injury (1 minor injury), 3 uninjured
Location
Keanae, HI
Aircraft
Mcdonnell Douglas 369D
Tail Number
N58240
Operator
Pacific Helicopters
Injuries
Minor
Aircraft Damage
Substantial
NTSB Number
LAX91LA058
THE PILOT OF A HELICOPTER WAS IN CRUISE CLIMB AT 2600 FEET 300/400 FEET ABOVE A WATERFALL IN MOUNTAINOUS TERRAIN WHEN THE ENGINE OUT AND LOW RPM WARNING HORN AND LIGHT CAME ON. THE PILOT DECIDED TO MAKE A PRECAUTIONARY LANDING ON A FLOWER FARM DOWNHILL. DURING THE DESCENT HE MADE A SERIES OF POWER CHANGES WHICH REVEALED A DETERIORATION IN AVAILABLE POWER. THE HELICOPTER LANDED HARD ON THE REAR PORTION OF THE SKIDS. THE MAIN ROTORS SEVERED THE TAIL BOOM AND ROTOR SYSTEM.
NTSB Probable Cause
FUEL STARVATION CAUSED BY A LOOSE FUEL LINE 'B' NUT, DUE TO IMPROPER MAINTENANCE; AND THE FAILURE OF THE PILOT TO CORRECTLY JUDGE THE LANDING FLARE DURING THE AUTOROTATION.
Full Narrative
THE PILOT OF A HELICOPTER WAS IN CRUISE CLIMB AT 2600 FEET 300/400 FEET ABOVE A WATERFALL IN MOUNTAINOUS TERRAIN WHEN THE ENGINE OUT AND LOW RPM WARNING HORN AND LIGHT CAME ON. THE PILOT DECIDED TO MAKE A PRECAUTIONARY LANDING ON A FLOWER FARM DOWNHILL. DURING THE DESCENT HE MADE A SERIES OF POWER CHANGES WHICH REVEALED A DETERIORATION IN AVAILABLE POWER. THE HELICOPTER LANDED HARD ON THE REAR PORTION OF THE SKIDS. THE MAIN ROTORS SEVERED THE TAIL BOOM AND ROTOR SYSTEM.
Flight
Event TypeAccident
Event Time07:45 HST
Nearest Airport0nm N
Runway0
Runway Length0
Runway Width0
Flight Plan FiledNone
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftMcdonnell Douglas 369D
Tail NumberN58240
Aircraft CategoryHeli
DamageSubstantial
OperatorPacific Helicopters
Operating RulePart 91
Engines1
Engine TypeTurboshaft
Engine DetailsAllison · 250-C20B · Turboshaft · 420
Seats5
People & Injuries
Injury Summary1 injury (1 minor injury), 3 uninjured
Fatal0
Serious0
Minor1
Uninjured3
Total4
Crew 1Age 32 · Second Class
Conditions
ConditionsVMC
LightDaylight
Wind360° @ 1 kt
Visibility15 sm
CeilingNone
Temperature / Dew Point0 C
Altimeter0
Weather SourcePILO