# NTSB investigations: Rolls-Royce 250-C20B: Collision with terr/obj (non-CFIT)

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 CEN25LA292](https://openairdocs.org/ntsb/CEN25LA292.md): Bell 206B · North Bend, NE · Accident · No injuries · Class 4 · Limited · Final report · Jul 27, 2025 · N432TV · Substantial damage
  > The pilot’s failure to maintain clearance from wires while maneuvering at a low altitude, and the ground crew failure to inform the pilot that the support truck had been moved.
- [NTSB WPR25FA190](https://openairdocs.org/ntsb/WPR25FA190.md): MD Helicopters 369E · Meeker, CO · Accident · 1 fatal · Class 3 · Field · Preliminary report · Jun 25, 2025 · N411WJ · Substantial damage
  > On June 25, 2025, about 1001 mountain daylight time, an MD Helicopters 369E, N411WJ, was substantially damaged when it was involved in an accident near Meeker, Colorado. The pilot was fatally injured. The helicopter was operated as a Title 14 Code of Federal…
- [NTSB ANC24LA016](https://openairdocs.org/ntsb/ANC24LA016.md): Hughes 369D · Hana, HI · Accident · No injuries · Class 4 · Limited · Final report · Feb 20, 2024 · N690WA · Substantial damage
  > The pilot’s failure to ensure the passenger’s gear was properly secured before departure.
- [NTSB ERA23LA295](https://openairdocs.org/ntsb/ERA23LA295.md): Bell Helicopter Textron 206B · Sandersville, GA · Accident · No injuries · Class 4 · Limited · Final report · Jun 25, 2023 · N919AC · Substantial damage
  > The pilot’s failure to maintain clearance of trees during landing, which resulted in a tail rotor contact with tree limbs and a subsequent loss of control.
- [NTSB WPR23LA063](https://openairdocs.org/ntsb/WPR23LA063.md): Hughes 369D · La Sal, UT · Accident · No injuries · Class 4 · Limited · Final report · Dec 8, 2022 · N458HW · Substantial damage
  > The pilot’s failure to maintain clearance from terrain during a toe-in landing to sloping terrain which resulted in a loss of helicopter control.

## 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."mKey" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.engine_model_code IN ('54385')
    AND EXISTS (SELECT 1 FROM 'https://openairdocs.org/data/latest/ntsb_events.parquet' e WHERE e.case_mkey = x.case_mkey AND e.aircrafts_position = x.position AND e."isDefiningEvent" AND e."tier2Number" = '470'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb-events/470/cases?engine=54385

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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.