# Ongoing NTSB investigations: Rolls-Royce M250 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 WPR26FA141](https://openairdocs.org/ntsb/WPR26FA141.md): Hughes 369D · Haena, HI · Accident · 3 fatal · Class 3 · Field · Preliminary report · Mar 27, 2026 · N715KV · Substantial damage
  > On March 26, 2026, about 1539 Hawaii standard time, a Hughes 369D helicopter, N715KV, was substantially damaged when it was involved in an accident near Haena, Hawaii. The pilot and one passenger sustained serious injuries, and three passengers were fatally…
- [NTSB CEN25LA232](https://openairdocs.org/ntsb/CEN25LA232.md): Bell 206B · Edgerton, MO · Accident · No injuries · Class 3 · Limited · Preliminary report · Jul 1, 2025 · N16726 · Substantial damage
  > On July 1, 2025, at 0845 central daylight time, a Bell 206B, N17626, was substantially damaged when it was involved in an accident near Edgerton, Missouri. The commercial pilot was uninjured. The helicopter was operated under Title 14 Code of Federal…

## 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."completionStatus" = 'Ongoing'
  AND c."mKey" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.engine_model_code IN ('54260'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?engine=54260&status=ongoing

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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.