GAA20CA007

NTSB accident investigation · De Havilland Beaver DHC 2 · Kodiak, AK · October 7, 2019

Accident · No injuriesData collectionFinal report
Date
October 7, 2019, 14:10 local (22:10 UTC)
Place
Kodiak, AK
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Landing
Aircraft
N1544De Havilland Beaver DHC 2
Defining event
Landing: Loss of control in flight
Weather
Visual (VMC) · Day
Status
Completed · report May 21, 2020
Report
Approved by Office Director
NTSB office
General Aviation Accidents
Parties
FAA
FAA report
20191007021139A
Case key
100390

From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the accident.

On this page

Probable cause

The pilot's failure to maintain lateral control while landing on glassy water, which resulted in the left float touching the water, a loss of yaw control, and impact with a riverbank.

Findings · 5

NTSB’s coded findings. Those marked are part of the probable cause; the rest are factors or other findings. Under each, the cases with the same finding.

Performance/control parameters: lateral/bank controlAircraft › Aircraft oper/perf/capability · Not attained/maintainedDehavilland BEAVER DHC-2: 1 caseAll aircraft: 390 casesProbable cause
Runway/land/takeoff/taxi surface: glassy surfaceEnvironmental issues › Physical environment · Effect on personnelDehavilland BEAVER DHC-2: 1 caseAll aircraft: 25 casesProbable cause
Object/animal/substanceEnvironmental issues › Physical environment · Effect on operationDehavilland BEAVER DHC-2: 1 caseAll aircraft: 224 casesProbable cause
Performance/control parameters: yaw controlAircraft › Aircraft oper/perf/capability · Not attained/maintainedDehavilland BEAVER DHC-2: 1 caseAll aircraft: 149 casesProbable cause

Sequence of events

The events NTSB coded, in order, by phase of flight. The defining event is the one that best describes the accident. Under each, the cases with the same event anywhere in their sequence.

Analysis

The pilot reported that, during landing on a glassy river and as he was rolling the wings level, he felt the left float touch the water. The airplane yawed left, went up a riverbank, and slid on the tundra. The airplane sustained substantial damage to the left-wing lift strut. The pilot reported that there were no preaccident mechanical failures or malfunctions with the airplane that would have precluded normal operation.

Factual narrative

The pilot of the float-equipped airplane reported that, during a landing on a glassy river, as he was rolling the wings level, he felt the left float touch the water. The airplane yawed to the left, went up the river bank, and slid on the tundra. The airplane sustained substantial damage to the left wing lift strut. The pilot reported that there were no preaccident mechanical failures or malfunctions with the airplane that would have precluded normal operation.

Aircraft

Registration
N1544
Reported as
De Havilland Beaver DHC 2 (No Series)
Category
Airplane
Serial number
1230
Built
1958
Airframe hours
31,302.2
Engine
P&W R985, 450 horsepower, reciprocating
Damage
Substantial damage
Flight
Positioning · Part 91
Operator
Andrew Airways Inc
Registered owner
Andrew Airways Inc
Airworthiness certificate
Standard, Normal
Last inspection
100 hour · September 30, 2019
Departed
Larson Bay, AK
Destination
Kodiak, AK
Flight plan
Company VFR
Equipment
Satellite tracking device

Matched to the registry by N-number and the event date; the registry’s history has gaps, so older matches can be wrong. Compare the reported make and model.

Flight crew

As NTSB recorded them. NTSB leaves out names.

Role
Pilot
Age
44
Injuries
None
Certificates
Flight instructor, Airline transport
Airplane ratings
Multi-engine land, Single-engine sea, Single-engine land
Instrument ratings
Airplane
Medical
Class 2, Without waivers/limitations
Last flight review
April 16, 2019
Seat
Left
Flight hours
8,173 total · 238 in this make and model · 7,978 as pilot in command · 231 in the last 90 days · 52 in the last 30 days · 4 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
240° at 12 knots
Lowest ceiling
None
Temperature
52 °F, dew point 34 °F
Altimeter
30.37 inHg
Observed at
PAKH

Docket · 2

The files NTSB released with the investigation on December 5, 2019, on NTSB’s docket system: statements, records, photos and specialists’ reports. 5.0 MB in all.

FAA reports on this event · 1

The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.

Other investigations on N1544 · 2

Matched to the same aircraft by N-number and date.