# Fatal NTSB investigations: Franklin 4AC176B series

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 CHI05LA250](https://openairdocs.org/ntsb/CHI05LA250.md): Porterfield FP-65 · Sedalia, MO · Accident · 1 fatal · Limited investigation · Final report · Sep 1, 2005 · N37855 · Substantial damage
  > The pilot's failure to maintain sufficient airspeed and the inadvertent stall/spin resulting in an in-flight loss of control and collision with terrain.
- [NTSB ATL92LA183](https://openairdocs.org/ntsb/ATL92LA183.md): Corben Baby ACE · Jacksonville, NC · Accident · 1 fatal · Limited investigation · Final report · Sep 20, 1992 · N840Z · Substantial damage
  > The pilot's failure to maintain flying speed which resulted in a loss of control and an inadvertent stall and collision with the ground.
- [NTSB UNK64X1890](https://openairdocs.org/ntsb/UNK64X1890.md): Piper J3F-65 · Dixie, ID · Accident · 1 fatal · Closed · May 22, 1964 · N40912 · Destroyed

## 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."highestInjuryLevel" = 'Fatal'
  AND c."mKey" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.engine_model_code IN ('27006'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?engine=27006&fatal=1

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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.