# NTSB investigations: Hughes Helicopters HUGHES 369D, 2004

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 DFW05FA032](https://openairdocs.org/ntsb/DFW05FA032.md): Hughes 369D · Zachary, LA · Accident · Serious injuries · Field investigation · Final report · Dec 9, 2004 · N7148Z · Substantial damage
  > The loss of engine power as a result of fatigue cracking of the compressor adaptor coupling initiated by fretting on the pilot diameter and subsequent disconnection of the compressor from the turbine assembly. A contributing factor was the low operating…
- [NTSB ATL04LA181](https://openairdocs.org/ntsb/ATL04LA181.md): Hughes HU-369-D · Waynesboro, GA · Accident · Minor injuries · Limited investigation · Final report · Sep 10, 2004 · N5211R · Substantial damage
  > The tail rotor assembly failed due to a fatigue fracture of the input gearshaft in the tail rotor gearbox assembly, which resulted in a loss of tail rotor control and subsequent collision with trees.
- [NTSB SEA04LA181](https://openairdocs.org/ntsb/SEA04LA181.md): Hughes 369D · Cottage Grove, OR · Accident · No injuries · Limited investigation · Final report · Sep 4, 2004 · N505ST · Substantial damage
  > In-flight loss of engine power during cruise for undetermined reasons.

## 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") = 2004
  AND c."mKey" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.aircraft_model_code IN ('4470706'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?model=4470706&year=2004

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