# NTSB investigations: Rolls-Royce 250-C20B: Miscellaneous/other

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 CEN26LA264](https://openairdocs.org/ntsb/CEN26LA264.md): Bell 206B · Saint Joseph, IL · Accident · Serious injuries · Class 4 · Limited · Investigation open · Jul 17, 2026 · N297CA · Substantial damage
- [NTSB CEN20CA334](https://openairdocs.org/ntsb/CEN20CA334.md): Hughes 369 · Delia, KS · Accident · No injuries · Class 4 · Data collection · Final report · Aug 5, 2020 · N104SU · Substantial damage
  > Foreign object damage sustained to the main rotor blades due to aerial tree trimming.
- [NTSB CEN18LA121](https://openairdocs.org/ntsb/CEN18LA121.md): Hughes 369D · Blair, WI · Accident · Serious injuries · Limited investigation · Final report · Mar 7, 2018 · N499SL · No damage
  > The pilot’s failure to recognize and compensate for hazards during the external load operation, which led to a collision between a lineman (external load) and a powerline.
- [NTSB GAA16CA480](https://openairdocs.org/ntsb/GAA16CA480.md): Hughes 369 · Peach Orchard, MO · Accident · No injuries · Data collection · Final report · Sep 9, 2016 · N500TN · Substantial damage
  > The helicopter pilot’s failure to maintain sufficient separation between the main rotor blade and a power line during line guard installation, which resulted in an electrical arc to the main rotor.
- [NTSB ERA10CA367](https://openairdocs.org/ntsb/ERA10CA367.md): Bell 206 · Roseville, PA · Accident · No injuries · Data collection · Final report · Jul 19, 2010 · N302MG · Substantial damage
  > The pilot's failure to maintain clearance from a known wire hazard.
- [NTSB CEN10CA246](https://openairdocs.org/ntsb/CEN10CA246.md): Carlesimo Glasair III T · Lynwood, IL · Accident · No injuries · Data collection · Final report · May 7, 2010 · N713MJ · Substantial damage
  > A loss of engine power due to fuel starvation as a result of the pilot's failure to follow the pre-landing checklist and verifying the position of the fuel selector.

## 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" = '900'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb-events/900/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.