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NTSB Report
February 10, 1983 · Bell 47G-5 · N1375X
Irvine, CA
Overview
Report Status
Preliminary report
Event Type
Accident
Date
February 10, 1983
Injury Outcomes
No injuries (1 uninjured)
Location
Irvine, CA
Aircraft
Bell 47G-5
Tail Number
N1375X
Injuries
None
Aircraft Damage
Substantial
NTSB Number
LAX83FUA03
THE HELICOPTER LANDED HARD IN A FIELD OFF THE AIRPORT FOLLOWING AN ENGINE POWER LOSS. THE ACFR HAD LIFTED OFF AND ONLY TRAVELED ABOUT 50 FEET AT 15 FEET AGL WHEN THE POWER LOSS OCCURRED. AN ENGINE TEARDOWN REVEALED THAT THE RINGS ON 3 CYLINDERS HAD NOT SEATED AND WERE LEAKING OIL INTO THE COMBUSTION CHAMBERS. THE PLUGS IN THESE CYLINDERS WERE CARBON FOULED.
Full Narrative
THE HELICOPTER LANDED HARD IN A FIELD OFF THE AIRPORT FOLLOWING AN ENGINE POWER LOSS. THE ACFR HAD LIFTED OFF AND ONLY TRAVELED ABOUT 50 FEET AT 15 FEET AGL WHEN THE POWER LOSS OCCURRED. AN ENGINE TEARDOWN REVEALED THAT THE RINGS ON 3 CYLINDERS HAD NOT SEATED AND WERE LEAKING OIL INTO THE COMBUSTION CHAMBERS. THE PLUGS IN THESE CYLINDERS WERE CARBON FOULED.
Flight
Event TypeAccident
Event Time10:45 PST
Nearest Airport0nm N
Runway0
Flight Plan FiledNone
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftBell 47G-5
Tail NumberN1375X
Aircraft CategoryHeli
DamageSubstantial
Operating RulePart 137
Engines1
Engine TypeReciprocating
Engine DetailsLycoming · L-3840-31 · Reciprocating · 265
Seats3
People & Injuries
Injury SummaryNo injuries (1 uninjured)
Fatal0
Serious0
Minor0
Uninjured1
Total1
Crew 1Age 37 · Second Class
Conditions
ConditionsVMC
LightDaylight
WindCalm
Visibility10 sm
CeilingNone
Temperature / Dew Point64 F / 52
Altimeter29.00 inHg
Weather SourcePILO