# NTSB investigations: Franklin 6V4 series, 1988

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 FTW89DPA03](https://openairdocs.org/ntsb/FTW89DPA03.md): Bell 47-D1 · Allen, TX · Accident · Serious injuries · Final report · Dec 2, 1988 · N74124 · Substantial damage
  > Unqualified pilot's poor judgement in leveling the helicopter during the flare and contributing to this was his lack of total experience in this type aircraft.
- [NTSB MIA88LA212](https://openairdocs.org/ntsb/MIA88LA212.md): Bell 47D1 · Ruleville, MS · Accident · No injuries · Limited investigation · Final report · Jul 4, 1988 · N903B · Substantial damage
  > During an aerial application flt while spraying chemicals the plt reported that the engine quit. The pilot attempted an autorotation but was too low and slow to complete it. The aircraft landed hard in the field of crops and nosed over. Examination of the…
- [NTSB LAX88LA160](https://openairdocs.org/ntsb/LAX88LA160.md): Bell 47D1 · Taft, CA · Accident · No injuries · Limited investigation · Final report · Apr 13, 1988 · N917B · Substantial damage
- [NTSB MKC88FA054](https://openairdocs.org/ntsb/MKC88FA054.md): Bell 47D1 · Nixa, MO · Accident · 1 fatal · Field investigation · Final report · Feb 21, 1988 · N7735 · Destroyed
  > During the process of moving the helicopter from the hangar the right skid slipped off the concrete helipad and became stuck in the mud. The pilot attempted to dislodge the skid by bringing the aircraft to a hover. The left skid became airborne and contacted…

## 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") = 1988
  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=1988

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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.