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NTSB Report
July 23, 1992 · Cessna 172 · N5339H
Twin Hills, AK
Overview
Report Status
Probable Cause
Event Type
Accident
Date
July 23, 1992
Injury Outcomes
No injuries (3 uninjured)
Location
Twin Hills, AK
Aircraft
Cessna 172
Tail Number
N5339H
Operator
Yute Air Alaska
Injuries
None
Aircraft Damage
Substantial
NTSB Number
ANC92LA110
THE PILOT NOTICED THAT AT LIFTOFF THE AIRPLANE'S NOSE WAS HIGHER THAN NORMAL. HE LOOKED AT THE FLAP INDICATOR AND NOTICED HE HAD SELECTED FULL FLAPS. HE ATTEMPTED TO RETRACT SOME OF THE FLAPS AND ACCIDENTLY SELECTED FULL UP. THE AIRPLANE HIT THE TUNDRA AND CAME TO A STOP. ACCORDING TO THE CESSNA 172 PILOT'S OPERATING HANDBOOK, THE USE OF TEN DEGREES OF FLAPS IS RESERVED FOR TAKEOFFS FROM SOFT OR ROUGH FIELDS. IT FURTHER STATES THAT THE FLAPS SHOULD NOT BE RETRACTED DURING THE INITIAL CLIMB.
NTSB Probable Cause
THE PILOT IN COMMAND NOT FOLLOWING THE PROCEDURES OUTLINED IN THE PILOT'S OPERATING HANDBOOK.
Full Narrative
THE PILOT NOTICED THAT AT LIFTOFF THE AIRPLANE'S NOSE WAS HIGHER THAN NORMAL. HE LOOKED AT THE FLAP INDICATOR AND NOTICED HE HAD SELECTED FULL FLAPS. HE ATTEMPTED TO RETRACT SOME OF THE FLAPS AND ACCIDENTLY SELECTED FULL UP. THE AIRPLANE HIT THE TUNDRA AND CAME TO A STOP. ACCORDING TO THE CESSNA 172 PILOT'S OPERATING HANDBOOK, THE USE OF TEN DEGREES OF FLAPS IS RESERVED FOR TAKEOFFS FROM SOFT OR ROUGH FIELDS. IT FURTHER STATES THAT THE FLAPS SHOULD NOT BE RETRACTED DURING THE INITIAL CLIMB.
Flight
Event TypeAccident
Event Time15:30 AKDT
Nearest AirportTwin Hills (0nm N)
Runway1
Runway Length2000 ft
Runway Width50 ft
Flight Plan FiledCvfr
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftCessna 172
Tail NumberN5339H
Aircraft CategoryAir
DamageSubstantial
OperatorYute Air Alaska
Operating RulePart 91
Engines1
Engine TypeReciprocating
Engine DetailsLycoming · O-320-E2D · Reciprocating · 150
Seats4
People & Injuries
Injury SummaryNo injuries (3 uninjured)
Fatal0
Serious0
Minor0
Uninjured3
Total3
Crew 1Age 36 · First Class
Conditions
ConditionsVMC
LightDaylight
WindCalm
Visibility30 sm
CeilingBroken clouds 4000 ft
Temperature / Dew Point61 F / 0 C
Altimeter0
Weather SourcePILO