# NTSB investigations: Franklin 6V4 series, 1975

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 FTW76FPJ19](https://openairdocs.org/ntsb/FTW76FPJ19.md): Hiller Acft UH-12A · Ada, OK · Accident · No injuries · Closed · Dec 13, 1975 · N8117H · Substantial damage
- [NTSB FTW76FPA15](https://openairdocs.org/ntsb/FTW76FPA15.md): Bell 47D-1 · Irving, TX · Accident · No injuries · Closed · Dec 7, 1975 · N5226 · Substantial damage
- [NTSB DEN76FTE32](https://openairdocs.org/ntsb/DEN76FTE32.md): Hiller Acft UH-12C · Nucla, CO · Accident · No injuries · Closed · Oct 19, 1975 · N5316V · Substantial damage
- [NTSB ANC76AA041](https://openairdocs.org/ntsb/ANC76AA041.md): Hiller Acft UH-12A · Nome, AK · Accident · No injuries · Closed · Sep 27, 1975 · N10172 · Substantial damage
- [NTSB NYC76FGM05](https://openairdocs.org/ntsb/NYC76FGM05.md): Hiller Acft UH-12B · Beaver Falls, PA · Accident · No injuries · Closed · Sep 3, 1975 · N90424 · Substantial damage
- [NTSB MIA76DLA08](https://openairdocs.org/ntsb/MIA76DLA08.md): Bell 47D1 · Monticello, FL · Accident · No injuries · Closed · Aug 21, 1975 · N74123 · Substantial damage
- [NTSB OAK76DVM08](https://openairdocs.org/ntsb/OAK76DVM08.md): Bell 47G · King City, CA · Accident · Minor injuries · Closed · Aug 20, 1975 · N933B · Substantial damage
- [NTSB MIA76FLG04](https://openairdocs.org/ntsb/MIA76FLG04.md): Bell 47G · Myrtle Beach, SC · Accident · No injuries · Closed · Jul 26, 1975 · N1773 · Substantial damage
- [NTSB SEA76DYG01](https://openairdocs.org/ntsb/SEA76DYG01.md): Bell 47G-2 · Moses Lake, WA · Accident · Minor injuries · Closed · Jul 1, 1975 · N984B · Destroyed
- [NTSB MKC75FCQ52](https://openairdocs.org/ntsb/MKC75FCQ52.md): Bell 47D1 · Holcomb, KS · Accident · No injuries · Closed · Jun 12, 1975 · N7735 · Substantial damage
- [NTSB CHI75DEV36](https://openairdocs.org/ntsb/CHI75DEV36.md): Bell 47D-1 · Carmi, IL · Accident · No injuries · Closed · Jun 6, 1975 · N74121 · Destroyed
- [NTSB FTW75DPG70](https://openairdocs.org/ntsb/FTW75DPG70.md): Tomcat MK-5 · Corning, AR · Accident · No injuries · Closed · May 26, 1975 · N4924C · Substantial damage
- [NTSB IAD76FKW17](https://openairdocs.org/ntsb/IAD76FKW17.md): Bell 47H1 · Nashville, TN · Accident · Serious injuries · Closed · May 20, 1975 · N13172 · Substantial damage
- [NTSB OAK75FVG66](https://openairdocs.org/ntsb/OAK75FVG66.md): Bell 47D-1 · Sacramento, CA · Accident · No injuries · Closed · May 13, 1975 · N342L · Substantial damage
- [NTSB NYC75FGM32](https://openairdocs.org/ntsb/NYC75FGM32.md): Hiller Acft UH-12B · Beaver Falls, PA · Accident · No injuries · Closed · Apr 1, 1975 · N90424 · Substantial damage
- [NTSB IAD75FKW13](https://openairdocs.org/ntsb/IAD75FKW13.md): Bell 47H · Nashville, TN · Accident · No injuries · Closed · Apr 1, 1975 · N981B · 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") = 1975
  AND c."mKey" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.engine_model_code IN ('27033'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?engine=27033&year=1975

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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.