# NTSB investigations: Franklin 6VS-335 series, WA

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 SEA95LA022](https://openairdocs.org/ntsb/SEA95LA022.md): Hiller UH-12C · Twisp, WA · Accident · No injuries · Limited investigation · Final report · Nov 28, 1994 · N54594 · Substantial damage
  > An unexplained loss of power and the student pilot's delayed application of collective during the landing flare.
- [NTSB SEA70DWG03](https://openairdocs.org/ntsb/SEA70DWG03-115039.md): Bell 47G · Conconully, WA · Accident · No injuries · Closed · Jul 11, 1970 · N979B · Substantial damage
- [NTSB SEA70D0003](https://openairdocs.org/ntsb/SEA70D0003.md): Bell 47G · Ritzville, WA · Accident · No injuries · Closed · Jun 1, 1969 · N979B · Substantial damage
- [NTSB SEA67A0031](https://openairdocs.org/ntsb/SEA67A0031.md): Bell 47G · Tonasket, WA · Accident · No injuries · Closed · Oct 12, 1966 · N979B · 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" = 'WA' 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 ('27040'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?engine=27040&state=WA

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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.