# NTSB investigations: Hughes 369HS, 1985

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 DEN85FA180](https://openairdocs.org/ntsb/DEN85FA180.md): Hughes 369HS · Keystone, SD · Accident · 4 fatal · Field investigation · Final report · Jul 6, 1985 · N5410W · Destroyed
  > Main rotor hub was overhauled by a repair station that was not authroized by Hughes helicopters for hub overhauls. The main rotor hub and blades separated in-flt 279 hrs after overhaul. The acft crashed in a densily wooded area. Post accident exam of the main…
- [NTSB ATL85LA183](https://openairdocs.org/ntsb/ATL85LA183.md): Hughes 369HS · Aiken, SC · Accident · No injuries · Limited investigation · Final report · Jun 7, 1985 · N9146F · Substantial damage
  > During a landing, the eng lost power & the helicopter touched down hard. The plt stated that prior to the 15 min flt, the fuel gage was indicating 125 lbs of fuel & at the accident site it indicated 90 lbs of fuel. A post crash inspection of the fuel system…

## 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") = 1985
  AND c."mKey" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.aircraft_model_code IN ('4470728'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?model=4470728&year=1985

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