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NTSB Report
September 14, 2013 · Dehavilland Beaver DHC 2 Marki · N1544
Akhiok, AK
Overview
Report Status
Final with probable cause
Event Type
Accident
Date
September 14, 2013
Injury Outcomes
No injuries (4 uninjured)
Location
Akhiok, AK
Aircraft
Dehavilland Beaver DHC 2 Marki (1958)
Tail Number
N1544
Operator
Andrew Airways
Injuries
None
Aircraft Damage
Substantial
NTSB Number
ANC13CA098
The pilot of a float-equipped airplane reported that he was attempting to takeoff from a river, in the same direction as the 3 to 5-knot current, with a 5-knot tailwind. During the takeoff run, as the airplane neared a bend in the river, it encountered a 15 to 20-knot quartering tailwind gust. He said that the airplane lost rudder authority due to the wind gust, and he was unable to steer around the river bend. The airplane subsequently struck the riverbank and came to rest upright. During the impact, the left wing sustained substantial damage. The pilot reported no preimpact mechanical malfunctions with the airplane.
NTSB Probable Cause
Aircraft-Aircraft oper/perf/capability-Performance/control parameters-Directional control-Not attained/maintained - C
Full Narrative
The pilot of a float-equipped airplane reported that he was attempting to takeoff from a river, in the same direction as the 3 to 5-knot current, with a 5-knot tailwind. During the takeoff run, as the airplane neared a bend in the river, it encountered a 15 to 20-knot quartering tailwind gust. He said that the airplane lost rudder authority due to the wind gust, and he was unable to steer around the river bend. The airplane subsequently struck the riverbank and came to rest upright. During the impact, the left wing sustained substantial damage. The pilot reported no preimpact mechanical malfunctions with the airplane.
Flight
Event TypeAccident
Event Time12:45 AKDT
Nearest Airport0nm
Flight Plan FiledCvfr
Flight Plan ActivatedYes
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftDehavilland Beaver DHC 2 Marki
Tail NumberN1544
Aircraft CategoryAir
DamageSubstantial
OperatorAndrew Airways
Operating RulePart 135
Engines1
Engine TypeReciprocating
Engine DetailsP&W · R-985 · Reciprocating · 450
Seats7
People & Injuries
Injury SummaryNo injuries (4 uninjured)
Fatal0
Serious0
Minor0
Uninjured4
Total4
Crew 1Age 33 · Second Class · None
Conditions
ConditionsVMC
LightDaylight
Wind310° @ 9 kt
Visibility10 sm
CeilingBroken clouds 2500 ft
Temperature / Dew Point54 / 48
Altimeter29.84 inHg
Observation Time12:53
Weather SourceWFAC