WPR23LA109

NTSB accident investigation · Stinson 108-1 · Morgan, UT · February 12, 2023

Accident · No injuriesClass 4 · LimitedFinal report
Date
February 12, 2023, 16:00 local (23:00 UTC)
Place
Morgan, UT · Airport 42U
Injuries
2 uninjured
Damage
Substantial damage
Phase of flight
Landing
Aircraft
N8135KStinson 108-1
Defining event
Landing-landing roll: 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
FAA
FAA report
20230212002169A
Case key
106729

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 landing.

Findings · 2

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/maintainedStinson 108-1: 10 casesAll aircraft: 3,958 casesProbable cause
Use of equip/info: aircraft controlPersonnel issues › Task performance · PilotStinson 108-1: 10 casesAll aircraft: 9,295 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 landing, and after the tailwheel touched the ground, the airplane began turning to the left. The pilot made an abrupt control input with the right rudder, which resulted in the airplane veering to the right side of the runway and colliding with a snowbank. The airplane subsequently nosed over substantially damaging the right wing. The pilot reported that there were no preaccident mechanical failures or malfunctions with the airplane that would have precluded normal operation.

Aircraft

Registration
N8135K
Reported as
Stinson 108-1
Category
Airplane
Serial number
108-1135
Built
1946
Airframe hours
3,063
Engine
Franklin 6A4150 SERIES, 150 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Registered owner
Head In The Clouds LLC
Airworthiness certificate
Standard, Normal
Last inspection
Annual · February 1, 2022
Destination
Same as departure
Airport
42U · Morgan County, runway 21, 3,904 × 50 ft, asphalt
Equipment
ADS-B

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
45
Injuries
None
Certificates
Commercial, Airline transport, Flight instructor, Private
Airplane ratings
Single-engine land, Multi-engine land
Instrument ratings
Airplane
Medical
Class 2, Without waivers/limitations
Last flight review
March 1, 2022
Seat
Left
Flight hours
18,000 total · 110 in this make and model · 3,100 as pilot in command · 260 in the last 90 days · 85 in the last 30 days · 2 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
260° at 3 knots
Visibility
10 statute miles
Lowest ceiling
None
Temperature
37 °F, dew point 21 °F
Altimeter
30.09 inHg
Observed at
KHIF, 9 nm away
METAR
KHIF 122255Z AUTO 26003KT 10SM CLR 03/M06 A3009 RMK AO2 SLP200 T00281061

Docket · 2

The files NTSB released with the investigation on March 23, 2023, on NTSB’s docket system: statements, records, photos and specialists’ reports. 9.5 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.