ANC08CA105

NTSB accident investigation · Walker AK Bush Flyer · Deadhorse, AK · August 14, 2008

Accident · Minor injuriesData collectionFinal report
Date
August 14, 2008, 12:40 local (20:40 UTC)
Place
Deadhorse, AK
Injuries
1 minor
Damage
Substantial damage
Phase of flight
Landing
Aircraft
N799CCWalker AK Bush Flyer
Defining event
Landing-flare/touchdown: Loss of control on ground
Weather
Visual (VMC) · Day
Status
Completed · report September 26, 2008
Report
Approved by Office Director
NTSB office
Alaska Regional Office
FAA report
20080814845149A
Case key
68809

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

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Probable cause

The pilot's failure to maintain control of the airplane during the landing roll. A factor contributing to the accident was a tailwind.

Findings · 3

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 parametersAircraft › Aircraft oper/perf/capability · Not attained/maintainedWalker Ernest R ALASKA BUSH FLYER: 1 caseAll aircraft: 1,269 casesProbable cause
Wind: tailwindEnvironmental issues › Conditions/weather/phenomena · Not specifiedWalker Ernest R ALASKA BUSH FLYER: 1 caseAll aircraft: 594 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 commercial pilot related that while landing the experimental, amateur built tailwheel airplane at an off-airport, tundra-covered site, the tail started to rise. He said he was unable to keep the tail from rising, and the airplane nosed over, sustaining substantial damage to the right wing and both wing lift struts. The pilot noted that the airplane was exceptionally light, with no significant weight in the rear compartments. He said that the lack of the weight, coupled with a slight tailwind, added to his difficulty in controlling the airplane. He stated that there were no preaccident mechanical problems with the airplane.

Factual narrative

The commercial pilot related that while landing the experimental, amateur built tailwheel airplane at an off-airport, tundra-covered site, the tail started to rise. He said he was unable to keep the tail from rising, and the airplane nosed over, sustaining substantial damage to the right wing and both wing lift struts. The pilot noted that the airplane was exceptionally light, with no significant weight in the rear compartments. He said that the lack of the weight, coupled with a slight tailwind, added to his difficulty in controlling the airplane. He stated that there were no preaccident mechanical problems with the airplane.

Aircraft

Registration
N799CC
Reported as
Walker AK Bush Flyer
Category
Airplane, amateur-built
Serial number
001-2004
Engine
Lycoming O-360, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Registered owner
Ernest R. Walker
Airworthiness certificate
Special, Experimental (Special)
Departed
Deadhorse, AK
Destination
Deadhorse, AK

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
63
Injuries
None
Certificate
Commercial
Airplane ratings
Single-engine land, Single-engine sea
Instrument ratings
Airplane
Medical
Class 3
Last flight review
May 1, 2008
Flight hours
1,482 total · 302 in this make and model · 1,398 as pilot in command · 58 in the last 90 days · 32 in the last 30 days

Weather

Conditions
Visual (VMC) · Day

FAA reports on this event · 1

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