# NTSB investigations: Franklin 6A4165 series, CO

NTSB aviation accident and incident investigations since 1962: the probable cause, findings, aircraft, crew, weather and docket of each, linked to the FAA registry and the FAA’s own reports.

## Latest cases

- [NTSB CEN26LA087](https://openairdocs.org/ntsb/CEN26LA087.md): Stinson 108-3 · Gypsum, CO · Accident · Minor injuries · Class 3 · Limited · Preliminary report · Jan 11, 2026 · N6725M · Substantial damage
  > On January 11, 2026, at 1408 mountain standard time, a Stinson 108-3 airplane, N6725M, sustained substantial damage when it was involved in an accident near Gypsum, Colorado. The pilot sustained minor injuries. The airplane was operated as a Title 14 Code of…
- [NTSB CEN20LA345](https://openairdocs.org/ntsb/CEN20LA345.md): Stinson 108 · Glenwood Springs, CO · Accident · No injuries · Class 3 · Limited · Final report · Aug 12, 2020 · N9726K · Substantial damage
  > The pilot’s loss of directional control upon landing due to a sheared tailwheel locking pin.
- [NTSB CEN20CA204](https://openairdocs.org/ntsb/CEN20CA204.md): Stinson 108 · Denver, CO · Accident · No injuries · Class 4 · Data collection · Final report · Jun 1, 2020 · N6518M · Substantial damage
  > The pilot’s failure to maintain directional control while landing during variable wind conditions.
- [NTSB GAA17CA015](https://openairdocs.org/ntsb/GAA17CA015.md): Stinson 108 · Rifle, CO · Accident · No injuries · Data collection · Final report · Oct 6, 2016 · N4210C · Substantial damage
  > The pilot's failure to maintain directional control during the landing roll, which resulted in a runway excursion.
- [NTSB CEN14CA183](https://openairdocs.org/ntsb/CEN14CA183.md): Stinson 108 · Broomfield, CO · Accident · No injuries · Data collection · Final report · Mar 14, 2014 · N9538K · Substantial damage
  > The pilot's failure to maintain directional control during the landing, which resulted in the airplane departing the runway and nosing over.
- [NTSB DEN03LA036](https://openairdocs.org/ntsb/DEN03LA036.md): Stinson 108-2 · Elbert, CO · Accident · No injuries · Limited investigation · Final report · Jan 25, 2003 · N9335K · Substantial damage
  > the pilot's inability to maintain aircraft control resulting in the ground loop. Factors relating to the accident were the crosswinds and the wind gusts.
- [NTSB DEN02LA062](https://openairdocs.org/ntsb/DEN02LA062.md): Stinson 108-3 · Falcon, CO · Accident · No injuries · Limited investigation · Final report · Jun 30, 2002 · N6968M · Substantial damage
  > the pilot's failure to maintain aircraft control during the takeoff roll and subsequent abort. Factors relating to the accident were the gusting crosswinds and the unsuitable terrain encountered when the airplane departed the runway.
- [NTSB DEN90LA019](https://openairdocs.org/ntsb/DEN90LA019.md): Universal Stinson 108-3 · Fort Collins, CO · Accident · No injuries · Limited investigation · Final report · Nov 8, 1989 · N4082C · Substantial damage
  > Inadequate compensation for wind conditons by the pilot which resulted in his failure to maintain directional control. Factors related to the accident were: the unfavorable wind condition and soft terrain.
- [NTSB DEN89LA107](https://openairdocs.org/ntsb/DEN89LA107.md): Stinson 108-3 · Aurora, CO · Accident · No injuries · Limited investigation · Final report · Apr 12, 1989 · N993C · Substantial damage
  > The inadequate compensation for wind conditions by the pilot. Lack of recent experience in the type of aircraft is considered a contributing factor.
- [NTSB DEN83LA088](https://openairdocs.org/ntsb/DEN83LA088.md): Stinson 108-2 · Aspen, CO · Accident · Minor injuries · Limited investigation · Final report · Mar 30, 1983 · N434C · Substantial damage
  > While inbound, the plt checked the ATIS which was reporting a wind from 350 deg at 10 KTS. He continued inbound, and when he checked with the tower, the wind was from 350 deg at 6 KTS. The plt was cleared to land on the rwy of his choice, he stated that he…
- [NTSB DEN76FTE95](https://openairdocs.org/ntsb/DEN76FTE95.md): Stinson 108-2 · Peyton, CO · Accident · No injuries · Closed · Sep 6, 1976 · N9320K · Substantial damage
- [NTSB DEN74DTE29](https://openairdocs.org/ntsb/DEN74DTE29.md): Stinson 108-3 · Kiowa, CO · Accident · No injuries · Closed · Nov 11, 1973 · N6656M · Substantial damage
- [NTSB DEN72DTE58](https://openairdocs.org/ntsb/DEN72DTE58.md): Stinson 108-3 · Lamar, CO · Accident · No injuries · Closed · Feb 13, 1972 · N160C · Substantial damage
- [NTSB DEN69F0122](https://openairdocs.org/ntsb/DEN69F0122.md): Stinson 108-2 · Aurora, CO · Accident · Minor injuries · Closed · Sep 19, 1968 · N8096K · Destroyed
- [NTSB DEN69D0088](https://openairdocs.org/ntsb/DEN69D0088.md): Stinson 108-2 · Aurora, CO · Accident · Minor injuries · Closed · Aug 9, 1968 · N8124K · Substantial damage

## The whole list in SQL

Runs in DuckDB 1.2 or later on the release's Parquet files over HTTPS:

```sql
SELECT c."ntsbNumber", c."eventDate", c."eventType", c."eventCity", c."eventStateOrRegion", a.n_number, a."aircraftMake", a."aircraftModel", c."highestInjuryLevel", c."totalFatal", c."completionStatus", c.report_url
FROM 'https://openairdocs.org/data/latest/ntsb_case_detail.parquet' c LEFT JOIN 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' a ON a.case_mkey = c."mKey" AND a.position = 1
WHERE c."eventStateOrRegion" = 'CO' AND c."eventCountry" = 'USA'
  AND c."mKey" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.engine_model_code IN ('27025'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?engine=27025&state=CO

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OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.