# Fatal NTSB investigations: Rolls-Royce 250-C300 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 CEN26FA207](https://openairdocs.org/ntsb/CEN26FA207.md): Robinson Helicopter R66 · Dawsonville, GA · Accident · 2 fatal · Class 3 · Field · Preliminary report · May 30, 2026 · N4488H · Substantial damage
  > On May 29, 2026, about 2150 eastern daylight time, a Robinson R66 helicopter, N4488H, was substantially damaged when it was involved in an accident near Dawsonville, Georgia. The commercial pilot and one passenger were fatally injured. The other passenger had…
- [NTSB WPR16FA130](https://openairdocs.org/ntsb/WPR16FA130.md): Robinson Helicopter R66 · Wikieup, AZ · Accident · 2 fatal · Field investigation · Final report · Jun 23, 2016 · N117TW · Destroyed
  > An encounter with turbulence due to updrafts and/or dust devils that resulted in mast bumping and an in-flight break-up.
- [NTSB CEN12FA001](https://openairdocs.org/ntsb/CEN12FA001.md): Robinson Helicopter R66 · Philip, SD · Accident · 1 fatal · Field investigation · Final report · Oct 1, 2011 · N266CY · Destroyed
  > The in-flight separation of the main rotor mast following a mast bumping event. The reason for the mast bumping event could not be determined due to postaccident damage.
- [NTSB ERA11RA398](https://openairdocs.org/ntsb/ERA11RA398.md): Robinson R66 · Girardot, Colombia · Accident · 2 fatal · Foreign investigation · Jul 12, 2011 · N810AG · Substantial damage
  > On July 12, 2011, about 2041 UTC, or 1541 local, a Robinson Helicopter Company R66, N810AG, registered to Aircraft Guaranty Corporation Trustee, operated by a private individual, collided with terrain near Girardot, Colombia. Visual meteorological conditions…

## 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 ('54225'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?engine=54225&fatal=1

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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.