# NTSB investigations: Franklin 6A&6V335 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 DEN03FA113](https://openairdocs.org/ntsb/DEN03FA113.md): Mattison Starduster Too · Ellicott, CO · Accident · 1 fatal · Field investigation · Final report · Jun 28, 2003 · N80T · Destroyed
  > the pilot's improper in-flight planning/decision to perform aerobatics at low altitude and the failed welds at the elevator horn and torque tube. Factors contributing to the accident were the pilot performing aerobatics at low altitude, his inability to…
- [NTSB FTW94LA002](https://openairdocs.org/ntsb/FTW94LA002.md): Maule M-5-200C · Watkins, CO · Accident · No injuries · Limited investigation · Final report · Oct 3, 1993 · N16CB · Substantial damage
  > The pilot's loss of directional control resulting in the inadvertent ground loop. A factor was the instructor's failure to take remedial action on a timely manner.
- [NTSB DEN93LA028](https://openairdocs.org/ntsb/DEN93LA028.md): Maule M-5-220C · Englewood, CO · Accident · No injuries · Limited investigation · Final report · Feb 28, 1993 · N16CB · Substantial damage
  > Failure by the pilot to maintain control of the aircraft. A factor was: lack of experience in type of aircraft.

## 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 ('27020'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?engine=27020&state=CO

---
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.