# NTSB investigations: Franklin 6V4 series, 1987

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 SEA87LA172](https://openairdocs.org/ntsb/SEA87LA172.md): Bell 47G2 · Grandview, WA · Accident · Serious injuries · Limited investigation · Final report · Aug 21, 1987 · N74161 · Substantial damage
  > After the completion of spray operations the pilot was attempting to place the helicopter onto a trailer. The pilot misjudged his position, over-corrected, and then lost control of the helicopter, striking the ground.
- [NTSB LAX87LA294](https://openairdocs.org/ntsb/LAX87LA294.md): Bell 47D-1 · Taft, CA · Accident · No injuries · Limited investigation · Final report · Aug 5, 1987 · N917B · Substantial damage
  > The plt rprtd the eng lost power at about 300' AGL after the helicopter had flown aprx 2.7 hrs without refueling. He initiated an autorotative landing; however, before touchdown, the main rotor blades contacted & severed the tail boom. An exam revealed the…
- [NTSB ATL87LA204](https://openairdocs.org/ntsb/ATL87LA204.md): Bell 47D1 · Huntsville, AL · Accident · No injuries · Limited investigation · Final report · Jul 8, 1987 · N908B · Substantial damage
  > The aerial application flight was dispensing insecticides on a cotton field. While maneuvering to avoid powerlines during the procedure turnaround following an upwind swath run, the pilot failed to maintain sufficient airspeed to ensure effective…
- [NTSB ATL87DEI05](https://openairdocs.org/ntsb/ATL87DEI05.md): Bell 47G-2 · Lisbon, OH · Accident · Minor injuries · Final report · Jun 14, 1987 · N984B · Substantial damage
  > The helicopter rolled over as it was lifting off from a transport trailer. A post-crash exam revealed that the left rear tie-down strap on the trailer was wrapped around one of the helicopter skids. The ground crewman believed he had removed all of the straps…

## 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") = 1987
  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=1987

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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.