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NTSB Report
May 9, 1992 · Cessna 180 · N2940C
Kenai, AK
Overview
Report Status
Probable Cause
Event Type
Accident
Date
May 9, 1992
Injury Outcomes
No injuries (2 uninjured)
Location
Kenai, AK
Aircraft
Cessna 180
Tail Number
N2940C
Operator
Ralph Wellborn
Injuries
None
Aircraft Damage
Substantial
NTSB Number
ANC92LA068
THE PILOT WAS ON THE BASE LEG FOR LANDING ON THE KENAI RIVER WHEN THE ENGINE STOPPED PRODUCING POWER. HE WAS UNABLE TO GLIDE TO THE RIVER SO HE LANDED ON A ROAD. DURING THE FORCED LANDING SEQUENCE THE AIRPLANE STRUCK SOME TREES BEFORE LANDING ON THE ROAD. EXAMINATION OF THE AIRPLANE AND ENGINE SHOWED NO MECHANICAL MALFUNCTION. THE PILOT STATED HE FELT IT WAS CARBURETOR ICE WHICH CAUSED THE POWER LOSS. HE WAS CARRYING ONLY 15 INCHES OF MANIFOLD PRESSURE DURING THE MANEUVERING AND TRAFFIC PATTERN AND HAD APPLIED CARBURETOR HEAT. HE DID NOT KNOW IF THE CARBURETOR HEAT WAS OPERATING.
NTSB Probable Cause
THE PILOT'S IMPROPER USE OF CARBURETOR HEAT WHICH RESULTED IN LOSS OF ENGINE POWER DUE TO CARBURETOR ICE.
Full Narrative
THE PILOT WAS ON THE BASE LEG FOR LANDING ON THE KENAI RIVER WHEN THE ENGINE STOPPED PRODUCING POWER. HE WAS UNABLE TO GLIDE TO THE RIVER SO HE LANDED ON A ROAD. DURING THE FORCED LANDING SEQUENCE THE AIRPLANE STRUCK SOME TREES BEFORE LANDING ON THE ROAD. EXAMINATION OF THE AIRPLANE AND ENGINE SHOWED NO MECHANICAL MALFUNCTION. THE PILOT STATED HE FELT IT WAS CARBURETOR ICE WHICH CAUSED THE POWER LOSS. HE WAS CARRYING ONLY 15 INCHES OF MANIFOLD PRESSURE DURING THE MANEUVERING AND TRAFFIC PATTERN AND HAD APPLIED CARBURETOR HEAT. HE DID NOT KNOW IF THE CARBURETOR HEAT WAS OPERATING.
Flight
Event TypeAccident
Event Time17:30 AKDT
Nearest Airport0nm N
Runway0
Flight Plan FiledNone
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftCessna 180
Tail NumberN2940C
Aircraft CategoryAir
DamageSubstantial
OperatorRalph Wellborn
Operating RulePart 91
Engines1
Engine TypeReciprocating
Engine DetailsContinental · O-470-K · Reciprocating · 230
Seats4
People & Injuries
Injury SummaryNo injuries (2 uninjured)
Fatal0
Serious0
Minor0
Uninjured2
Total2
Crew 1Age 42 · Third Class
Conditions
ConditionsVMC
LightDaylight
WindCalm
Visibility20 sm
CeilingNone
Temperature / Dew Point39 C / 0 C
Altimeter0
Weather SourcePILO