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NTSB Report
July 6, 2013 · Aeronca 11AC · N9118E
Kodiak, AK
Overview
Report Status
Final with probable cause
Event Type
Accident
Date
July 6, 2013
Injury Outcomes
No injuries (2 uninjured)
Location
Kodiak, AK
Aircraft
Aeronca 11AC
Tail Number
N9118E
Injuries
None
Aircraft Damage
Substantial
NTSB Number
ANC13CA062
The pilot was flying a potential buyer of the airplane on a pre-buy inspection flight. Just after leveling the airplane in cruise flight, the engine lost power momentarily. He applied carburetor heat, and the engine regained normal power. While returning to the airport, he turned the carburetor heat back off, and then on again, and the engine again lost power. He stated that this time, the engine power could not be restored, and with no suitable landing sites available within gliding distance, he ditched the airplane into the water paralleling the shoreline. During the ditching, the airplane nosed over, and sustained substantial damage to the left wing. Based on the temperature and dew point at the time of the accident, the conditions were favorable for serious carburetor icing at any power setting.
NTSB Probable Cause
The loss of engine power due to carburetor icing and the pilot's failure to continue the use of carburetor heat after experiencing carburetor ice.
Full Narrative
The pilot was flying a potential buyer of the airplane on a pre-buy inspection flight. Just after leveling the airplane in cruise flight, the engine lost power momentarily. He applied carburetor heat, and the engine regained normal power. While returning to the airport, he turned the carburetor heat back off, and then on again, and the engine again lost power. He stated that this time, the engine power could not be restored, and with no suitable landing sites available within gliding distance, he ditched the airplane into the water paralleling the shoreline. During the ditching, the airplane nosed over, and sustained substantial damage to the left wing. Based on the temperature and dew point at the time of the accident, the conditions were favorable for serious carburetor icing at any power setting.
Flight
Event TypeAccident
Event Time14:30 AKDT
Nearest Airport0nm
Flight Plan FiledNone
Aircraft FireNo
Aircraft
AircraftAeronca 11AC
Tail NumberN9118E
Aircraft CategoryAir
DamageSubstantial
Operating RulePart 91
Engines1
Engine TypeReciprocating
Engine DetailsCont Motor · O-235-C-1 · Reciprocating · 100
Seats2
People & Injuries
Injury SummaryNo injuries (2 uninjured)
Fatal0
Serious0
Minor0
Uninjured2
Total2
Crew 1Age 26 · Third Class · None
Conditions
ConditionsVMC
LightDaylight
Wind140° @ 12 kt
Visibility10 sm
CeilingBroken clouds 2300 ft
Temperature / Dew Point54 / 46
Altimeter29.88 inHg
Observation Time18:53
Weather SourceWFAC