# NTSB investigations: Rolls-Royce 250-C20B, 2018

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 GAA18CA506](https://openairdocs.org/ntsb/GAA18CA506.md): Hughes 369 · Ridgeway, PA · Accident · No injuries · Data collection · Final report · Aug 22, 2018 · N89ZC · Substantial damage
  > The pilot's failure to maintain clearance from power lines during an aerial observation flight.
- [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.
- [NTSB WPR18FA188](https://openairdocs.org/ntsb/WPR18FA188.md): Hughes 369 · Majuro · Accident · 2 fatal · Field investigation · Final report · Jul 4, 2018 · N8648F · Destroyed
  > The pilot's failure to maintain clearance above the surface of the ocean.
- [NTSB CEN18FA182](https://openairdocs.org/ntsb/CEN18FA182.md): MD Helicopter 369D · Luling, LA · Accident · 1 fatal · Field investigation · Final report · May 20, 2018 · N362JS · Destroyed
  > The pilot's failure to maintain clearance from the powerline structure while hovering, which resulted in an inadvertent collision with the structure and an uncontrolled descent into terrain.
- [NTSB GAA18CA249](https://openairdocs.org/ntsb/GAA18CA249.md): Hughes 369 · Newark, OH · Accident · No injuries · Data collection · Final report · Apr 29, 2018 · N175JL · Substantial damage
  > The pilot’s failure to maintain adequate clearance from transmission power wires, which resulted in a tail rotor strike.
- [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.

## 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 year(c."eventDate") = 2018
  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&year=2018

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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.