SEA08CA215

NTSB accident investigation · North American AT-6 · Arlington, WA · October 1, 2008

Accident · No injuriesData collectionFinal report
Date
September 30, 2008, 17:05 local (Oct 1, 2008, 00:05 UTC)
Place
Arlington, WA
Injuries
2 uninjured
Damage
Substantial damage
Phase of flight
Landing
Aircraft
N39313North American AT-6
Defining event
Landing-landing roll: Loss of control on ground
Weather
Visual (VMC) · Day
Status
Completed · report November 10, 2008
Report
Approved by Office Director
Parties
Federal Aviation Administration
FAA report
20080930847919A
Case key
69218

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 front seated pilot's inadequate compensation for the right quartering tailwind and failure to maintain directional control. Also causal was the rear seated pilot's inadequate remedial action and failure to regain directional control.

Findings · 4

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: directional controlAircraft › Aircraft oper/perf/capability · Not attained/maintainedNorth American AT-6: 1 caseAll aircraft: 3,958 casesProbable cause
Wind: tailwindEnvironmental issues › Conditions/weather/phenomena · Contributed to outcomeNorth American AT-6: 1 caseAll aircraft: 594 casesProbable cause
Wind: crosswindEnvironmental issues › Conditions/weather/phenomena · Ability to respond/compensateNorth American AT-6: 1 caseAll aircraft: 1,008 casesProbable cause
Action: incorrect action performancePersonnel issues › Action/decision · PilotNorth American AT-6: 1 caseAll aircraft: 1,386 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 purpose of the flight was to re-familiarize the front seat pilot, who was a perspective buyer, with the tailwheel-equipped airplane. The owner of the airplane, who was also a rated pilot, occupied the rear seat. During the landing roll on runway 16, the front seat pilot noted that the airplane started to veer to the right. The rear seat pilot took control of the airplane and added power attempting to go-around. The airplane exited the runway as it continued to veer to the right and became airborne after striking a knoll adjacent to the runway. Subsequently, the left wing struck the ground and the airplane landed hard and impacted the concrete windsock segmented circle. Examination of the airplane revealed that the fuselage and wings were structurally damaged. The rear seat pilot reported no anomalies with the flight control system or engine. Recorded weather data revealed that 12 minutes prior to the accident, the wind was from 330-degrees at 5 knots.

Factual narrative

The purpose of the flight was to re-familiarize the front seat pilot, who was a perspective buyer, with the tailwheel-equipped airplane. The owner of the airplane, who was also a rated pilot, occupied the rear seat. During the landing roll on runway 16, the front seat pilot noted that the airplane started to veer to the right. The rear seat pilot took control of the airplane and added power attempting to go-around. The airplane exited the runway as it continued to veer to the right and became airborne after striking a knoll adjacent to the runway. Subsequently, the left wing struck the ground and the airplane landed hard and impacted the concrete windsock segmented circle. Examination of the airplane revealed that the fuselage and wings were structurally damaged. The rear seat pilot reported no anomalies with the flight control system or engine. Recorded weather data revealed that 12 minutes prior to the accident, the wind was from 330-degrees at 5 knots. As of October 27, 2008, no Pilot/Operator Aircraft Accident Report (NTSB Form 6120.1) was received from either pilot. However, both pilots submitted written statement to the Federal Aviation Administration.

Aircraft

Registration
N39313
Reported as
North American AT-6
Category
Airplane
Serial number
91074
Engine
Pratt & Whitney R-1340, 550 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Operator
Peter Jonathan Houghton
Registered owner
Air Station
Airworthiness certificate
Standard, Normal
Departed
AWO · Arlington, WA
Destination
AWO · Arlington, WA
Airport
AWO · Arlington Municipal Airport, runway 16, 5,332 × 100 ft, asphalt

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 · 2

As NTSB recorded them. NTSB leaves out names.

Role
Pilot
Age
39
Injuries
None
Certificate
Commercial
Airplane ratings
Single-engine sea, Single-engine land
Medical
Class 2, Unknown
Seat
Rear
Flight hours
2,500 total · 250 in this make and model
Role
Other flight crew
Age
66
Injuries
None
Certificate
Airline transport
Airplane ratings
Multi-engine land, Single-engine land
Instrument ratings
Airplane
Medical
Class 1, Unknown
Seat
Front
Flight hours
3,600 total · 1 in this make and model

Weather

Conditions
Visual (VMC) · Day
Wind
330° at 5 knots
Visibility
10 statute miles
Lowest ceiling
None
Temperature
66 °F, dew point 55 °F
Altimeter
30.00 inHg
Observed at
AWO

FAA reports on this event · 1

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