# NTSB investigations: Franklin 6V4 series, KS

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 MKC81DCQ43](https://openairdocs.org/ntsb/MKC81DCQ43.md): Bell 47G-2 · Sublette, KS · Accident · No injuries · Closed · Jun 20, 1981 · N7735 · Substantial damage
- [NTSB MKC76DCQ57](https://openairdocs.org/ntsb/MKC76DCQ57.md): Bell 47D-1 · Sublette, KS · Accident · No injuries · Closed · Jun 4, 1976 · N908B · Substantial damage
- [NTSB MKC75FCQ52](https://openairdocs.org/ntsb/MKC75FCQ52.md): Bell 47D1 · Holcomb, KS · Accident · No injuries · Closed · Jun 12, 1975 · N7735 · Substantial damage
- [NTSB MKC67A0088](https://openairdocs.org/ntsb/MKC67A0088.md): Bell 47G · Lincoln, KS · Accident · No injuries · Closed · Jun 26, 1967 · N73865 · Substantial damage
- [NTSB UNK64X1649](https://openairdocs.org/ntsb/UNK64X1649.md): Hiller UH12A · Abilene, KS · Accident · No injuries · Closed · May 7, 1964 · N10172 · 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" = 'KS' 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 ('27033'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

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

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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.