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NTSB Report
September 20, 2019 · De Havilland Beaver DHC 2 MK.1 No Series · N67112
Kotzebue, AK
Overview
Report Status
Final with probable cause
Event Type
Accident
Date
September 20, 2019
Injury Outcomes
No injuries (1 uninjured)
Location
Kotzebue, AK
Aircraft
De Havilland Beaver DHC 2 MK.1 No Series (1955)
Tail Number
N67112
Operator
Arctic Air
Injuries
None
Aircraft Damage
Substantial
NTSB Number
GAA19CA562
The pilot reported that, during takeoff from a lake and after the floats came up on the step, the right float struck a submerged bog, which resulted in a brief deceleration of airspeed. After the float cleared the submerged bog, the airplane accelerated again, but the airspeed was not sufficient for liftoff, so the pilot aborted the takeoff. As the airplane approached rocks at the edge of the lake, he steered the airplane right onto a mud embankment, and the airplane slid to a stop short of an adjacent taxiway. The airplane sustained substantial damage to the fuselage. The pilot reported that there were no preaccident mechanical failures or malfunctions with the airplane that would have precluded normal operation.
NTSB Probable Cause
The pilot's delayed decision to abort the takeoff from water after the airplane impacted a submerged object, which resulted in insufficient airspeed for liftoff and led to the pilot steering the airplane toward a mud embankment to avoid rocks.
Full Narrative
The pilot of the float-equipped airplane reported that, during takeoff from a lake, after the floats came up on the step, the right float struck a submerged bog or tundra which resulted in a brief deceleration of speed. After the float cleared the submerged bog, the airplane accelerated again, but the airspeed was not sufficient for liftoff, so the pilot aborted the takeoff. As the airplane approached rocks at the north edge of the lake, he steered the airplane to the right onto a mud embankment and slid to a stop short of the adjacent airport's taxiway. The airplane sustained substantial damage to the fuselage. The pilot reported that there were no preaccident mechanical failures or malfunctions with the airplane that would have precluded normal operation.
Flight
Event TypeAccident
Event Time14:45 AKDT
Nearest AirportRalph Wien Memorial (0nm SSE)
Runway36
Runway Length3876 ft
Runway Width90 ft
Flight Plan FiledCvfr
Flight Plan ActivatedUnknown
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftDe Havilland Beaver DHC 2 MK.1 No Series
Tail NumberN67112
Aircraft CategoryAir
DamageSubstantial
OperatorArctic Air
Operating RulePart 91
Engines1
Engine TypeReciprocating
Engine DetailsPrat & Whitney · R-985 · Reciprocating · 450
Seats5
People & Injuries
Injury SummaryNo injuries (1 uninjured)
Fatal0
Serious0
Minor0
Uninjured1
Total1
Crew 1Age 56 · Second Class · None
Conditions
ConditionsVMC
LightDaylight
Wind260° @ 3 kt
Visibility10 sm
CeilingNone
Temperature / Dew Point43 C / 36 C
Altimeter29.48 inHg
Observation Time23:00
Weather SourceWFAC