# Fatal NTSB investigations: Franklin 6VS-335 series

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 ATL07LA045](https://openairdocs.org/ntsb/ATL07LA045.md): Hiller UH-12A · Bethlehem, GA · Accident · 2 fatal · Limited investigation · Final report · Feb 24, 2007 · N8180H · Substantial damage
  > The pilot's failure to maintain adequate rotor rpm, which resulted in an attempted autorotation and in-flight collision with trees. Contributing to the severity of the accident was the pilot exceeding the helicopters takeoff capability.
- [NTSB LAX94FA354](https://openairdocs.org/ntsb/LAX94FA354.md): Stinson 108-3 · Shelter Cove, CA · Accident · 4 fatal · Field investigation · Final report · Sep 5, 1994 · N6446M · Destroyed
  > Inadequate preflight by the pilot, which resulted in fuel starvation and loss of engine power, improper (or delayed) positioning of the fuel selector to the fullest tank, and failure of the pilot to maintain adequate airspeed, while maneuvering for a forced…
- [NTSB FTW82FPG11](https://openairdocs.org/ntsb/FTW82FPG11.md): Moore Bell 47D1 · Amagon, AR · Accident · 1 fatal · Final report · May 8, 1982 · N45867 · Destroyed
  > The purpose of the flight was to test the aerial spray equipment. After starting and warming the engine, the pilot took off, flew about 1/4 mi south, then flew north. A motorist stated that he saw black smoke coming from the helicopter. Two teen-agers heard…
- [NTSB CHI74AC096](https://openairdocs.org/ntsb/CHI74AC096.md): Hiller Acft UH-12B · Custar, OH · Accident · 1 fatal · Closed · Jun 2, 1974 · N6744C · Destroyed
- [NTSB IAD70A0013](https://openairdocs.org/ntsb/IAD70A0013.md): Bell 47D1 · Cherokee, NC · Accident · 1 fatal · Closed · Aug 12, 1969 · N2794A · 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."highestInjuryLevel" = 'Fatal'
  AND c."mKey" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.engine_model_code IN ('27040'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?engine=27040&fatal=1

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