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Atlas / NTSB / CEN25LA243

NTSB CAROL · Event

Event CEN25LA243

2025-07-08 Seguin, Texas, United States Airport · 1TE4 Serious 1 aircraft Status: Completed

Registry · N97577

FAA Aircraft Registry record.

Make / Model

STINSON 108

Year of manufacture

1946 · 79 years old at event

Engine

FRANKLIN 6A4150 SERIES (150 hp)

Seats / Engines

4 seats · 1 engine

Last airworthiness date

19570415

ADS-B equipped

Yes — Mode-S AD99A5

Registrant of record

CORBIN ROGER T

Source: FAA Aircraft Registry (releasable master file).

Aircraft involved

Probable cause & findings

The pilot’s failure to turn off the magneto switch before repositioning the propeller by hand which resulted in an inadvertent engine start.

Factual narrative

After refueling the airplane, the engine failed to start after two attempts, and the pilot elected to reposition the propeller by hand. The magneto switch was left in the ON position, and the engine inadvertently started which resulted in a serious injury to the pilot’s arm. The unoccupied airplane then collided with a large metal sign and came to rest upright. 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

Hierarchical cause / factor breakdown from the FAA bulk avdata database. Each finding tagged C (Cause) or F (Factor).

  • Aircraft-Aircraft power plant-Ignition system-Magneto/distributor-Incorrect use/operation
  • Personnel issues-Task performance-Use of equip/info-Use of equip/system-Pilot
  • Aircraft-Aircraft power plant-Engine (reciprocating)-(general)-Unintentional use/operation

Verbatim from NTSB's published report. Source file NTSB_2025_CEN25LA243.txt. Findings + structured fields enriched from FAA avall.mdb. Full investigation docket on data.ntsb.gov ↗.

Related research

What the literature says.

Academic papers and agency reports matching this event's aircraft type. Sourced from NASA NTRS, NTSB Safety Studies, FAA CAMI, AOPA Air Safety Institute, Embry-Riddle Scholarly Commons, arXiv, and the Semantic Scholar academic graph.

Browse the full corpus — academia portal ↗