# NTSB investigations: Franklin 6A4150 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 DEN92LA061](https://openairdocs.org/ntsb/DEN92LA061.md): Stinson 108-1 · Falcon, CO · Accident · Serious injuries · Limited investigation · Final report · Jun 19, 1992 · N9151K · Substantial damage
  > Inadvertent stall during initial climb following takeoff.
- [NTSB DEN91LA122](https://openairdocs.org/ntsb/DEN91LA122.md): Stinson 108 · Steamboat Sprin, CO · Accident · No injuries · Limited investigation · Final report · Sep 2, 1991 · N40159 · Substantial damage
  > A swerve initiated by the pilot in command to avoid a collision with a deer during takeoff roll.
- [NTSB DEN89LA226](https://openairdocs.org/ntsb/DEN89LA226.md): Universal Stinson 108-1 · Hudson, CO · Accident · Minor injuries · Limited investigation · Final report · Sep 30, 1989 · N8607K · Substantial damage
  > Partial loss of engine power for an unknown reason. A factor related to the accident was: the alfalfa crop.
- [NTSB DEN73FTE69](https://openairdocs.org/ntsb/DEN73FTE69.md): Bellanca 14-13 · Denver, CO · Accident · No injuries · Closed · Apr 17, 1973 · N74377 · Substantial damage
- [NTSB DEN72FTE40](https://openairdocs.org/ntsb/DEN72FTE40.md): Stinson 108-2 · Watkins, CO · Accident · No injuries · Closed · Nov 4, 1971 · N97086 · Substantial damage
- [NTSB DEN69D0064](https://openairdocs.org/ntsb/DEN69D0064.md): Bellanca 14-13 · Canon City, CO · Accident · No injuries · Closed · Jul 14, 1968 · N74299 · Substantial damage
- [NTSB DEN68D0090](https://openairdocs.org/ntsb/DEN68D0090.md): Bellanca 14-13 · Littleton, CO · Accident · No injuries · Closed · Sep 19, 1967 · N74341 · 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 ('27024'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?engine=27024&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.