# NTSB investigations: Franklin 6A4200 series, CA

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 LAX06CA296](https://openairdocs.org/ntsb/LAX06CA296.md): Bell 47G · Angels Camp, CA · Accident · No injuries · Data collection · Final report · Sep 18, 2006 · N7762 · Substantial damage
  > a hard landing due to the pilot's inadequate compensation for a wind shift encountered on final approach and his failure to maintain an adequate translational lift airspeed.
- [NTSB LAX93LA010](https://openairdocs.org/ntsb/LAX93LA010.md): Bell 47-D1 · El Monte, CA · Accident · No injuries · Limited investigation · Final report · Oct 11, 1992 · N162B · Substantial damage
  > The pilot's failure to maintain the rotor RPM.
- [NTSB LAX86LA065](https://openairdocs.org/ntsb/LAX86LA065.md): Hiller H-23A · Madera, CA · Accident · Serious injuries · Limited investigation · Final report · Dec 13, 1985 · N3107G · Destroyed
  > The helicopter crashed during a local frost protection flight. After about one hour of light, in dark night time conditions, fog appeared suddenly and the pilot became disoriented and crashed into the ground.
- [NTSB OAK76DVD44](https://openairdocs.org/ntsb/OAK76DVD44-154315.md): Bell 47G · Pittsburg, CA · Accident · Minor injuries · Closed · Jul 19, 1976 · N179B · Destroyed
- [NTSB OAK76DVG16](https://openairdocs.org/ntsb/OAK76DVG16.md): Bell 47G · Gold Run, CA · Accident · No injuries · Closed · Aug 25, 1975 · N179B · Substantial damage
- [NTSB LAX70F0142](https://openairdocs.org/ntsb/LAX70F0142.md): Bell 47-H · Laguna Bch, CA · Accident · Serious injuries · Closed · Aug 30, 1969 · N1Z · Substantial damage
- [NTSB UNK65X0522](https://openairdocs.org/ntsb/UNK65X0522.md): Bell 47H1 · Lagunabeach, CA · Accident · No injuries · Closed · Nov 1, 1964 · N1Z · Substantial damage
- [NTSB UNK64X3405](https://openairdocs.org/ntsb/UNK64X3405.md): Bell 47G · Alameda, CA · Accident · 1 fatal · Closed · Aug 15, 1964 · N179B · 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."eventStateOrRegion" = 'CA' 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 ('27027'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?engine=27027&state=CA

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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.