NTSB SEA90LA061 — 1990-04-05 · BOISE, Idaho, United States

Current FAA registration · N97781

Make / Model: STINSON 108-1
Year of manufacture: 1946 · 44 years old at event
Engine: FRANKLIN 6A4150 SERIES (150 hp)
Seats / Engines: 4 seats · 1 engine
Last airworthiness date: 19560716
ADS-B equipped: Yes — Mode-S ADA130

Source: FAA Aircraft Registry (releasable master file).

Aircraft involved

N97781 Stinson 108-1 None

Probable cause & findings

PILOT DID NOT MAINTAIN DIRECTIONAL CONTROL OF THE AIRPLANE DURING THE LANDING ROLL.

Factual narrative

DURING THE LANDING ROLL, THE PILOT REPORTED THAT THE AIRPLANE BEGAN TO VEER TO THE LEFT. THE PILOT APPLIED HARD RIGHT BRAKE; HOWEVER, THE AIRPLANE CONTINUED TO TRAVEL TO THE LEFT AND OFF THE RUNWAY. A CONTROLLER ON DUTY AT THE TIME OF THE ACCIDENT REPORTED THAT THE AIRPLANE BALLOONED PRIOR TO VEERING TO THE LEFT. THE PILOT REPORTED THAT THERE WERE NO MECHANICAL FAILURES OR MALFUNCTIONS WITH THE AIRPLANE PRIOR TO THE ACCIDENT. Source: NTSB Aviation Accident Database (Pre-2008 Archive) Retrieved: 2026-02-12

Verbatim from NTSB's published report. Source file NTSB_1990_SEA90LA061.txt. Findings + structured fields enriched from FAA avall.mdb. Full investigation docket on data.ntsb.gov ↗.

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