# NTSB investigations: Franklin 6V 350 series, 1971

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 ANC72DAG81](https://openairdocs.org/ntsb/ANC72DAG81.md): Maule M-4 · Skwentna, AK · Accident · No injuries · Closed · Dec 5, 1971 · N2028U · Substantial damage
- [NTSB MIA72DKT15](https://openairdocs.org/ntsb/MIA72DKT15.md): Siai-Marche S.205 · W Palm Beach, FL · Accident · No injuries · Closed · Sep 5, 1971 · N993WA · Substantial damage
- [NTSB MKC72DCQ27](https://openairdocs.org/ntsb/MKC72DCQ27.md): Maule M-4 · Newton, KS · Accident · No injuries · Closed · Sep 4, 1971 · N40307 · Substantial damage
- [NTSB SEA72DYC16](https://openairdocs.org/ntsb/SEA72DYC16.md): Maule M-4 · Lagrande, OR · Accident · No injuries · Closed · Aug 18, 1971 · N2077U · Substantial damage
- [NTSB NYC72FNA05](https://openairdocs.org/ntsb/NYC72FNA05.md): Bell 47D · Carver, MA · Accident · No injuries · Closed · Aug 4, 1971 · N177B · Substantial damage
- [NTSB MIA71FKW47](https://openairdocs.org/ntsb/MIA71FKW47.md): Waco S 20522R · Chattanooga, TN · Accident · No injuries · Closed · Apr 18, 1971 · N987WA · Substantial damage
- [NTSB CHI71DEC54](https://openairdocs.org/ntsb/CHI71DEC54.md): Maule 4-220C · Napoleon, MI · Accident · No injuries · Closed · Mar 31, 1971 · N2012U · Substantial damage
- [NTSB MIA71FKT46](https://openairdocs.org/ntsb/MIA71FKT46.md): Bell 47G · Loxahatchee, FL · Accident · No injuries · Closed · Mar 16, 1971 · N10175 · Substantial damage
- [NTSB CHI71FCG27](https://openairdocs.org/ntsb/CHI71FCG27.md): Siai-Marche S205 · N.Lewisburg, OH · Accident · Minor injuries · Closed · Mar 11, 1971 · N950W · 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") = 1971
  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=1971

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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.