# NTSB investigations: Rolls-Royce 250-C20B, HI

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 ANC24LA017](https://openairdocs.org/ntsb/ANC24LA017.md): MD Helicopter 369E/500E · Kekaha, HI · Accident · Serious injuries · Class 3 · Limited · Final report · Feb 27, 2024 · N633JH · Substantial damage
  > Maintenance personnel’s noncompliance with maintenance manual procedures that required the removal of the overrunning clutch output bearing during the regreasing procedure, which resulted in inadequate regreasing of the bearing and the subsequent failure of…
- [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 ANC21LA003](https://openairdocs.org/ntsb/ANC21LA003.md): Hughes 369 · Honolulu, HI · Accident · No injuries · Class 3 · Limited · Final report · Oct 27, 2020 · N58251 · Substantial damage
  > A partial loss of engine power due to an obstructed fuel line as a result of the separation of the circlip from the pin used on the fuel start pump. The reason for the circlip separation could not be determined based on the available evidence.
- [NTSB WPR18LA221](https://openairdocs.org/ntsb/WPR18LA221.md): Hughes 369 · Honolulu, HI · Accident · No injuries · Class 2 · Limited · Final report · Aug 8, 2018 · N369MH · Substantial damage
  > The operator's improper installation of the tail rotor (TR) teeter bearings, which resulted in cascading in-flight failures of the TR components and attach hardware.

## 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."eventStateOrRegion" = 'HI' AND c."eventCountry" = 'USA'
  AND c."mKey" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.engine_model_code IN ('54385'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?engine=54385&state=HI

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