WPR26LA105

NTSB accident investigation · Piper PA-20 · Three Forks, MT · February 13, 2026

Accident · No injuriesClass 4 · LimitedFinal report
Date
February 13, 2026, 15:42 local (22:42 UTC)
Place
Three Forks, MT · airport environment - runway
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Landing
Aircraft
N1491APiper PA-20
Defining event
Landing-landing roll: Loss of control on ground
Weather
Visual (VMC) · Day
Status
Completed · report April 30, 2026
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
20260213000859A
Case key
202448

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 during the landing roll with a variable wind.

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-20: 25 casesAll aircraft: 9,295 casesProbable cause
Performance/control parameters: directional controlAircraft › Aircraft oper/perf/capability · Not attained/maintainedPiper PA-20: 20 casesAll aircraft: 3,958 casesProbable cause
Wind: variable windEnvironmental issues › Conditions/weather/phenomena · Effect on operationPiper PA-20: 2 casesAll aircraft: 113 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 of the tailwheel-equipped airplane reported that during the landing roll, the airplane encountered a gust of wind that lifted the left wing. While correcting, the airplane ground looped to the left and exited the left side of the runway. During the ground loop, the right wing struck the ground, which resulted in substantial damage to the right wing, horizontal stabilizer and fuselage. The pilot reported that there were no preaccident mechanical malfunctions or failures with the airplane that would have precluded normal operation. At the time of the accident the airplane landed on runway 21 with a variable wind at 7 knots.

Aircraft

Registration
N1491A
Reported as
Piper PA-20
Category
Airplane
Serial number
20-840
Built
1952
Airframe hours
3,099.1
Engine
Lycoming O-290, 125 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Registered owner
Gray Wolf Aviation LLC
Airworthiness certificate
Standard, Normal
Last inspection
Annual · December 23, 2025
Destination
Same as departure
Airport
9S5 · Three Forks, runway 21, 5,099 × 60 ft, asphalt
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
37
Injuries
None
Certificate
Private
Airplane ratings
Single-engine land
Medical
Class 3, Without waivers/limitations
Last flight review
December 7, 2025
Seat
Left
Restraint
4-point
Flight hours
230.4 total · 139.5 in this make and model · 162.6 as pilot in command · 12.8 in the last 90 days · 10.7 in the last 30 days

Weather

Conditions
Visual (VMC) · Day
Wind
Variable at 7 knots
Visibility
10 statute miles
Lowest ceiling
None
Temperature
45 °F
Altimeter
29.96 inHg
Observed at
5 nm away
METAR
132256Z 08004KT 10SM CLR 08/M08 A2998 RMK AO2 SLP178 T00781078=

Docket · 4

The files NTSB released with the investigation on April 30, 2026, on NTSB’s docket system: statements, records, photos and specialists’ reports. 4.8 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.