ANC26LA028

NTSB accident investigation · Piper PA-18-150 · Palmer, AK · April 22, 2026

Accident · No injuriesClass 4 · LimitedFinal report
Date
April 22, 2026, 11:30 local (19:30 UTC)
Place
Palmer, AK · Mouth of Friday Creek
Injuries
2 uninjured
Damage
Substantial damage
Phase of flight
Landing
Aircraft
N4136EPiper PA-18-150
Defining event
Landing-landing roll: Nose over/nose down
Weather
Visual (VMC) · Day
Status
Completed · report October 15, 2026
Report
Approved by Office Director
Investigation class
Class 4 - Basic report with no Prelim publish
NTSB office
Alaska Regional Office
Parties
FAA
FAA report
20260422005599A
Case key
202871

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 landing roll in gusting wind conditions, which resulted in a ground loop.

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 parameters: directional controlAircraft › Aircraft oper/perf/capability · Not attained/maintainedPiper PA-18-150: 98 casesAll aircraft: 3,958 casesProbable cause
Use of equip/info: aircraft controlPersonnel issues › Task performance · PilotPiper PA-18-150: 160 casesAll aircraft: 9,295 casesProbable cause
Wind: gustsEnvironmental issues › Conditions/weather/phenomena · Response/compensationPiper PA-18-150: 34 casesAll aircraft: 1,199 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 conducting a touch and go landing on a gravel bar in a tailwheel equipped airplane, a strong gust of wind lifted the left wing. The airplane subsequently rolled to the left and came to rest inverted. The airplane sustained substantial damage to the left wing, rudder and wings. The pilot reported that there were no preaccident mechanical malfunctions or failures with the airplane that would have precluded normal operation.

Aircraft

Registration
N4136E
Reported as
Piper PA-18-150
Category
Airplane
Serial number
18-7809082
Built
1978
Airframe hours
2,738.26
Engine
Lycoming O-320-A2B, 150 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Airworthiness certificate
Standard, Normal
Last inspection
Annual · April 19, 2025
Departed
89AK · Wasilla, AK
Airport
NONE · Gravel river bar
Equipment
Electronic flight bag or handheld device, Stall warning system

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
Certificates
Airline transport, Commercial, Flight instructor
Airplane ratings
Single-engine sea, Multi-engine land, Single-engine land
Instrument ratings
Airplane
Medical
Class 2, With waivers/limitations
Last flight review
December 5, 2025
Seat
Rear
Restraint
4-point
Flight hours
23,071 total · 26 in this make and model

Weather

Conditions
Visual (VMC) · Day
Wind
120° at 17 knots, gusting 32
Visibility
10 statute miles
Lowest ceiling
6,000 ft overcast
Temperature
43 °F, dew point 27 °F
Altimeter
30.07 inHg
Observed at
PAAQ, 18 nm away
METAR
SPECI PAAQ 221900Z 12017G32KT 10SM OVC060 06/M03 A3007 RMK AO2 PK WND 12032/1854 WSHFT 1840 T00611028 $

Docket · 2

The files NTSB released with the investigation on October 15, 2026, on NTSB’s docket system: statements, records, photos and specialists’ reports. 5.8 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 N4136E · 1

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