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NTSB Report
June 21, 1992 · Bell 206L-3 · N66LR
Ponca City, OK
Overview
Report Status
Probable Cause
Event Type
Accident
Date
June 21, 1992
Injury Outcomes
No injuries (1 uninjured)
Location
Ponca City, OK
Aircraft
Bell 206L-3
Tail Number
N66LR
Operator
Petroleum Investors
Injuries
None
Aircraft Damage
Substantial
NTSB Number
FTW92LA166
THE PILOT WAS MANEUVERING HIS HELICOPTER AT A SLOW AIRSPEED AT APPROXIMATELY 50 TO 100 FEET AGL WHEN A LOSS OF POWER OCCURRED. HE INITIATED AN AUTOROTATION TO AN OPEN FIELD. THE MAIN ROTOR RPM WAS LOW AND A HARD LANDING OCCURRED. THE MAIN ROTOR BLADES FLEXED DOWNWARD STRIKING THE TAILBOOM WHICH SEPARATED FROM THE FUSELAGE. EXAMINATION OF THE FUEL SYSTEM REVEALED ORGANIC MATTER HAD CONTAMINATED THE FUEL SUPPLY.
NTSB Probable Cause
THE PILOT'S FAILURE TO MAINTAIN MAIN ROTOR RPM. A FACTOR WAS THE CONTAMINATED FUEL.
Full Narrative
THE PILOT WAS MANEUVERING HIS HELICOPTER AT A SLOW AIRSPEED AT APPROXIMATELY 50 TO 100 FEET AGL WHEN A LOSS OF POWER OCCURRED. HE INITIATED AN AUTOROTATION TO AN OPEN FIELD. THE MAIN ROTOR RPM WAS LOW AND A HARD LANDING OCCURRED. THE MAIN ROTOR BLADES FLEXED DOWNWARD STRIKING THE TAILBOOM WHICH SEPARATED FROM THE FUSELAGE. EXAMINATION OF THE FUEL SYSTEM REVEALED ORGANIC MATTER HAD CONTAMINATED THE FUEL SUPPLY.
Flight
Event TypeAccident
Event Time09:35 CDT
Nearest Airport0nm N
Runway0
Flight Plan FiledNone
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftBell 206L-3
Tail NumberN66LR
Aircraft CategoryHeli
DamageSubstantial
OperatorPetroleum Investors
Operating RulePart 91
Engines1
Engine TypeTurboshaft
Engine DetailsAllison · 250-C30P · Turboshaft · 650
Seats7
People & Injuries
Injury SummaryNo injuries (1 uninjured)
Fatal0
Serious0
Minor0
Uninjured1
Total1
Crew 1Age 52 · Third Class
Conditions
ConditionsVMC
LightDaylight
Wind60° @ 6 kt
Visibility12 sm
CeilingBroken clouds 12000 ft
Temperature / Dew Point64 F / 55
Altimeter30.00 inHg
Observation Time13:53
Weather SourceWFAC