NTSB WPR23LA109 — 2023-02-12 · Morgan, Utah, United States

Current FAA registration · N8135K

Make / Model: STINSON 108-1
Year of manufacture: 1946 · 77 years old at event
Engine: FRANKLIN 6A4150 SERIES (150 hp)
Seats / Engines: 4 seats · 1 engine
Last airworthiness date: 19550823
ADS-B equipped: Yes — Mode-S AB1792

Source: FAA Aircraft Registry (releasable master file).

Aircraft involved

N8135K Stinson 108-1 None

Probable cause & findings

The pilot’s failure to maintain directional control during landing.

Factual narrative

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. Source: NTSB Aviation Accident Database Retrieved: 2026-02-12

NTSB Findings

FAA avdata. C = Cause, F = Factor.

— Aircraft-Aircraft oper/perf/capability-Performance/control parameters-Directional control-Not attained/maintained
— Personnel issues-Task performance-Use of equip/info-Aircraft control-Pilot

Verbatim from NTSB's published report. Source file NTSB_2023_WPR23LA109.txt. Findings + structured fields enriched from FAA avall.mdb. Full investigation docket on data.ntsb.gov ↗.

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