# Final NTSB investigations: Franklin 4AC176C-D-F

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 ERA14FA337](https://openairdocs.org/ntsb/ERA14FA337.md): Culver LFA · Limington, ME · Accident · 1 fatal · Field investigation · Final report · Jul 12, 2014 · N41716 · Substantial damage
  > The pilot’s failure to maintain airspeed during initial climb, which resulted in the airplane exceeding its critical angle of attack and experiencing an aerodynamic stall.
- [NTSB ERA12LA087](https://openairdocs.org/ntsb/ERA12LA087.md): Smith Miniplane DSA-4 · Hernando, FL · Accident · No injuries · Limited investigation · Final report · Nov 27, 2011 · N1321 · Substantial damage
  > The pilot's failure to apply carburetor heat while descending in conditions conducive to carburetor icing, which resulted in carburetor icing and a subsequent total loss of engine power.
- [NTSB BFO93LA139](https://openairdocs.org/ntsb/BFO93LA139.md): Taylorcraft BF12-65 · Sunappee, NH · Accident · Serious injuries · Limited investigation · Final report · Jul 25, 1993 · N36452 · No damage
  > The passenger's failure to follow proper procedures and inadequate supervision by the pilot.
- [NTSB MIA72FLG06](https://openairdocs.org/ntsb/MIA72FLG06.md): Taylorcraft BC12 · Sullivans Is., SC · Accident · No injuries · Closed · Aug 10, 1971 · N36452 · Substantial damage
- [NTSB CHI71AC075](https://openairdocs.org/ntsb/CHI71AC075.md): Piper J3C-65 · Sunbury, OH · Accident · 2 fatal · Closed · Apr 11, 1971 · N6752H · Destroyed
- [NTSB MKC67D0144](https://openairdocs.org/ntsb/MKC67D0144.md): Republic RC-3 · Warrensburg, MO · Accident · No injuries · Closed · Jul 2, 1966 · N6438K · 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."completionStatus" = 'Completed'
  AND c."mKey" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.engine_model_code IN ('27007'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?engine=27007&status=final

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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.