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NTSB Report
June 21, 1989 · De Havilland DHC-2 · N46DG
Kassan, AK
Overview
Report Status
Probable Cause
Event Type
Accident
Date
June 21, 1989
Injury Outcomes
No injuries (2 uninjured)
Location
Kassan, AK
Aircraft
De Havilland DHC-2
Tail Number
N46DG
Operator
Ketchikan Air Servic
Injuries
None
Aircraft Damage
Substantial
NTSB Number
SEA89LA124
AFTER DROPPING OFF EQUIPMENT AT A LAKESIDE CABIN, THE PILOT BEGAN TAXIING THE FLOATPLANE ON WATER IN GUSTY DOWNWIND CONDITIONS IN PREPARATION FOR TAKEOFF FROM THE LAKE. WHILE FAST TAXIING (ON THE STEP), HE NOTICED THE GUSTY WIND CONDITIONS AND RETARDED THE THROTTLE. THE AIRCRAFT NOSED OVER AND CAME TO REST INVERTED IN WATER.
NTSB Probable Cause
THE EXCESSIVE TAXI SPEED USED BY THE PILOT IN THE EXISTING WEATHER CONDITIONS. CONTRIBUTING TO THE ACCIDENT WAS THE GUSTY TAILWIND.
Full Narrative
AFTER DROPPING OFF EQUIPMENT AT A LAKESIDE CABIN, THE PILOT BEGAN TAXIING THE FLOATPLANE ON WATER IN GUSTY DOWNWIND CONDITIONS IN PREPARATION FOR TAKEOFF FROM THE LAKE. WHILE FAST TAXIING (ON THE STEP), HE NOTICED THE GUSTY WIND CONDITIONS AND RETARDED THE THROTTLE. THE AIRCRAFT NOSED OVER AND CAME TO REST INVERTED IN WATER.
Flight
Event TypeAccident
Event Time20:00 AKDT
Nearest Airport0nm N
Runway0
Flight Plan FiledCvfr
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftDe Havilland DHC-2
Tail NumberN46DG
Aircraft CategoryAir
DamageSubstantial
OperatorKetchikan Air Servic
Operating RulePart 91
Engines1
Engine TypeReciprocating
Engine DetailsP&W · R985-AN-14B · Reciprocating · 450
Seats8
People & Injuries
Injury SummaryNo injuries (2 uninjured)
Fatal0
Serious0
Minor0
Uninjured2
Total2
Crew 1Age 21 · Second Class
Conditions
ConditionsVMC
LightDaylight
Wind160° @ 16 kt
Visibility35 sm
CeilingBroken clouds 8000 ft
Temperature / Dew Point57 / 43 C
Altimeter30.00 inHg
Weather SourceWFAC