# NTSB investigations: Franklin 6V4 series, 1977

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 LAX77DUK02](https://openairdocs.org/ntsb/LAX77DUK02.md): Bell 47D1 · Poston, AZ · Accident · No injuries · Closed · Sep 14, 1977 · N8060E · Substantial damage
- [NTSB MIA77FKQ35](https://openairdocs.org/ntsb/MIA77FKQ35.md): Bell MK5-B · Lambert, MS · Accident · Serious injuries · Closed · Aug 23, 1977 · N4227A · Substantial damage
- [NTSB MIA77DKG41](https://openairdocs.org/ntsb/MIA77DKG41.md): Bell 47-D1 · Berlin, GA · Accident · No injuries · Closed · Jul 2, 1977 · N908B · Substantial damage
- [NTSB FTW77DPG53](https://openairdocs.org/ntsb/FTW77DPG53.md): Bell 47D1 · Alicia, AR · Accident · No injuries · Closed · Jun 29, 1977 · N10190 · Substantial damage
- [NTSB FTW77FPM13](https://openairdocs.org/ntsb/FTW77FPM13.md): Bell 47G · Copan, OK · Accident · No injuries · Closed · Jun 15, 1977 · N16657 · Substantial damage
- [NTSB MKC77FCG24](https://openairdocs.org/ntsb/MKC77FCG24.md): Bell 47D · Mt.Vernon, MO · Accident · Minor injuries · Closed · May 24, 1977 · N925V · Substantial damage
- [NTSB SEA77FYE19](https://openairdocs.org/ntsb/SEA77FYE19.md): Bell 47D1 · Enumclaw, WA · Accident · No injuries · Closed · May 14, 1977 · N17301 · Substantial damage
- [NTSB FTW77FRA13](https://openairdocs.org/ntsb/FTW77FRA13.md): Bell 47D1 · Houston, TX · Accident · No injuries · Closed · Feb 27, 1977 · N9736Z · Substantial damage
- [NTSB LAX77FUA06](https://openairdocs.org/ntsb/LAX77FUA06-201381.md): Bell 47D-1 · Long Beach, CA · Accident · Minor injuries · Closed · Feb 23, 1977 · N74120 · Substantial damage
- [NTSB LAX77FUJ19](https://openairdocs.org/ntsb/LAX77FUJ19.md): Bell 47D1 · Parker, AZ · Accident · No injuries · Closed · Jan 10, 1977 · N8060E · 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 year(c."eventDate") = 1977
  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&year=1977

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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.