# NTSB investigations: Franklin 6V 350 series, 1974

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 OAK75DVA38](https://openairdocs.org/ntsb/OAK75DVA38.md): Hiller Acft UH-12C · Kettlmn Cty, CA · Accident · No injuries · Closed · Dec 31, 1974 · N4785C · Destroyed
- [NTSB FTW75DRG44](https://openairdocs.org/ntsb/FTW75DRG44.md): Maule M5220C · Austin, TX · Accident · No injuries · Closed · Dec 3, 1974 · N62002 · Substantial damage
- [NTSB OAK75DXQ25](https://openairdocs.org/ntsb/OAK75DXQ25.md): Maule M4220C · Reno, NV · Accident · No injuries · Closed · Sep 15, 1974 · N40307 · Substantial damage
- [NTSB ANC75DAG23](https://openairdocs.org/ntsb/ANC75DAG23.md): Maule M4220C · Dillingham, AK · Accident · No injuries · Closed · Aug 10, 1974 · N40319 · Substantial damage
- [NTSB DEN74FTE82](https://openairdocs.org/ntsb/DEN74FTE82.md): Maule M4220C · Dove Creek, CO · Accident · Minor injuries · Closed · Jun 2, 1974 · N40332 · Substantial damage
- [NTSB DEN74DTE72](https://openairdocs.org/ntsb/DEN74DTE72.md): Maule M4 · Boulder, CO · Accident · No injuries · Closed · May 19, 1974 · N40354 · Substantial damage
- [NTSB MIA74DKG74](https://openairdocs.org/ntsb/MIA74DKG74.md): Bell 47G · Blue Ridge, GA · Accident · No injuries · Closed · Apr 10, 1974 · N25802 · Substantial damage
- [NTSB MKC74DCJ29](https://openairdocs.org/ntsb/MKC74DCJ29.md): Maule M4220C · Lincoln, NE · Accident · No injuries · Closed · Feb 16, 1974 · N2077U · 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 year(c."eventDate") = 1974
  AND c."mKey" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.engine_model_code IN ('27043'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?engine=27043&year=1974

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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.