WPR23LA356

NTSB accident investigation · Piper PA-12 · Eatonville, WA · September 22, 2023

Accident · No injuriesClass 4 · LimitedFinal report
Date
September 22, 2023, 16:00 local (23:00 UTC)
Place
Eatonville, WA
Injuries
2 uninjured
Damage
Substantial damage
Phase of flight
Takeoff
Aircraft
N7955HPiper PA-12
Defining event
Takeoff: Loss of control on ground
Weather
Visual (VMC) · Day
Status
Completed
Report
Approved by Office Director
Investigation class
Class 4 - Basic report with no Prelim publish
NTSB office
Western Pacific Region
Parties
Federal Aviation Administration
FAA report
20230922014809A
Case key
193152

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 directional control during the takeoff roll, in gusty wind conditions, which resulted in a runway excursion.

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.

Use of equip/info: aircraft controlPersonnel issues › Task performance · PilotPiper PA-12: 51 casesAll aircraft: 9,295 casesProbable cause
Wind: gustsEnvironmental issues › Conditions/weather/phenomena · Effect on equipmentPiper PA-12: 7 casesAll aircraft: 1,199 cases
Performance/control parameters: directional controlAircraft › Aircraft oper/perf/capability · Not attained/maintainedPiper PA-12: 31 casesAll aircraft: 3,958 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 while taking off in a tailwheel-equipped airplane, he experienced a wind gust that lifted the left wing upwards and caused the right wing to contact the runway. Subsequently, he lost directional control of the airplane, resulting in a ground loop and impact with a berm. The airplane sustained substantial damage to the right wing. The pilot reported that there were no preaccident mechanical malfunctions or failures with the airplane that would have precluded normal operation.

Aircraft

Registration
N7955H
Reported as
Piper PA-12
Category
Airplane
Serial number
12-858
Built
1946
Airframe hours
3,108.45
Engine
Lycoming O-235 SERIES, 115 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Airworthiness certificate
Standard, Normal
Destination
49WA · Yelm, WA
Airport
2W3 · Swanson Airport, runway 34, 2,990 × 36 ft
Equipment
Handheld GPS

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
71
Injuries
None
Certificate
Private
Airplane ratings
Single-engine land
Medical
Class 3, With waivers/limitations
Last flight review
October 18, 2022
Seat
Front
Restraint
3-point
Flight hours
266.3 total · 23.3 in this make and model · 212.8 as pilot in command

Weather

Conditions
Visual (VMC) · Day
Wind
Calm
Visibility
10 statute miles
Lowest ceiling
None
Temperature
79 °F, dew point 43 °F
Altimeter
29.92 inHg
Observed at
KPLU, 14 nm away
METAR
KPLU 222255Z AUTO 00000KT 10SM CLR 26/06 A2992 RMK AO2

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 N7955H · 1

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