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NTSB Report
July 3, 1990 · Cessna 180B · N3125W
Butterfly Lake, AK
Overview
Report Status
Probable Cause
Event Type
Accident
Date
July 3, 1990
Injury Outcomes
No injuries (2 uninjured)
Location
Butterfly Lake, AK
Aircraft
Cessna 180B
Tail Number
N3125W
Injuries
None
Aircraft Damage
Substantial
NTSB Number
ANC90LA113
THE PILOT REPORTED THAT HE FORGOT TO RETRACT THE WHEEL PORTION OF HIS AMPHIBIOUS FLOAT EQUIPPED AIRPLANE FOLLOWING A TAKEOFF FROM A HARD SURFACED RUNWAY. SHORTLY THEREAFTER, HE LANDED IN THE WATER WITH THE WHEELS EXTENDED AND IMMEDIATELY NOSED OVER. THE PILOT SAID THAT HE FELT RUSHED DURING HIS PRECEDING TAKEOFF DUE TO A POTENTIAL AIR TRAFFIC CONFLICT, AND HE SUSPECTS THAT HIS CONCERN FOR THE LOCATION OF THE APPROACHING TRAFFIC INTERRUPTED HIS NORMAL HABIT OF RETRACTING THE GEAR.
NTSB Probable Cause
THE PILOT FAILED TO RETRACT THE AIRPLANE'S WHEEL PRIOR TO A WATER LANDING. CONTRIBUTING FACTORS ARE HIS FAILURE TO FOLLOW ESTABLISHED PROCEDURES/DIRECTIVES, AND HABIT INTERFERENCE CAUSED BY HIS CONCERN OVER AN AIR TRAFFIC CONFLICT DURING THE PRECEDING TAKEOFF.
Full Narrative
THE PILOT REPORTED THAT HE FORGOT TO RETRACT THE WHEEL PORTION OF HIS AMPHIBIOUS FLOAT EQUIPPED AIRPLANE FOLLOWING A TAKEOFF FROM A HARD SURFACED RUNWAY. SHORTLY THEREAFTER, HE LANDED IN THE WATER WITH THE WHEELS EXTENDED AND IMMEDIATELY NOSED OVER. THE PILOT SAID THAT HE FELT RUSHED DURING HIS PRECEDING TAKEOFF DUE TO A POTENTIAL AIR TRAFFIC CONFLICT, AND HE SUSPECTS THAT HIS CONCERN FOR THE LOCATION OF THE APPROACHING TRAFFIC INTERRUPTED HIS NORMAL HABIT OF RETRACTING THE GEAR.
Flight
Event TypeAccident
Event Time19:00 AKDT
Nearest AirportButterfly Lake (0nm N)
Runway0
Flight Plan FiledNone
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftCessna 180B
Tail NumberN3125W
Aircraft CategoryAir
DamageSubstantial
Operating RulePart 91
Engines1
Engine TypeReciprocating
Engine DetailsContinental · O-470K · Reciprocating · 230
Seats4
People & Injuries
Injury SummaryNo injuries (2 uninjured)
Fatal0
Serious0
Minor0
Uninjured2
Total2
Crew 1Age 49 · Second Class
Conditions
ConditionsVMC
LightDaylight
Wind155° @ 8 kt
Visibility60 sm
CeilingNone
Temperature / Dew Point0 C
Altimeter0
Weather SourcePILO