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NTSB Report
August 23, 1992 · Cessna 140 · N77073
Wasilla, AK
Overview
Report Status
Probable Cause
Event Type
Accident
Date
August 23, 1992
Injury Outcomes
No injuries (1 uninjured)
Location
Wasilla, AK
Aircraft
Cessna 140
Tail Number
N77073
Operator
William H Hall
Injuries
None
Aircraft Damage
Substantial
NTSB Number
ANC92LA142
DURING CRUISE FLIGHT THE PILOT EXPERIENCED A PARTIAL LOSS OF ENGINE POWER, AND MADE AN OFF AIRPORT FORCED LANDING, WHICH RESULTED IN SUBSTANTIAL DAMAGE TO THE AIRPLANE. EXAMINATION FOUND THAT A PIECE OF THE RIGHT HAND EXHAUST STACK HAD SEPARATED AT THE CONFLUENCE OF THE CARBURETOR HEAT EXTRACTION AREA. THE ENGINE OPERATED NORMALLY FOLLOWING THE ACCIDENT.
NTSB Probable Cause
THE PARTIAL LOSS OF ENGINE POWER DUE TO THE SEPARATION OF THE RIGHT HAND EXHAUST STACK. CONTRIBUTING TO THE ACCIDENT WAS THE UNSUITABLE TERRAIN ON WHICH THE FORCED LANDING WAS MADE.
Full Narrative
DURING CRUISE FLIGHT THE PILOT EXPERIENCED A PARTIAL LOSS OF ENGINE POWER, AND MADE AN OFF AIRPORT FORCED LANDING, WHICH RESULTED IN SUBSTANTIAL DAMAGE TO THE AIRPLANE. EXAMINATION FOUND THAT A PIECE OF THE RIGHT HAND EXHAUST STACK HAD SEPARATED AT THE CONFLUENCE OF THE CARBURETOR HEAT EXTRACTION AREA. THE ENGINE OPERATED NORMALLY FOLLOWING THE ACCIDENT.
Flight
Event TypeAccident
Event Time15:30 AKDT
Nearest Airport0nm N
Runway0
Flight Plan FiledNone
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftCessna 140
Tail NumberN77073
Aircraft CategoryAir
DamageSubstantial
OperatorWilliam H Hall
Operating RulePart 91
Engines1
Engine TypeReciprocating
Engine DetailsLycoming · O-290-D · Reciprocating · 125
Seats2
People & Injuries
Injury SummaryNo injuries (1 uninjured)
Fatal0
Serious0
Minor0
Uninjured1
Total1
Crew 1Age 47 · Third Class
Conditions
ConditionsVMC
LightDaylight
WindCalm
Visibility10 sm
CeilingBroken clouds 5000 ft
Temperature / Dew Point61 F / 55
Altimeter29.00 inHg
Weather SourcePILO