# NTSB investigations: Hughes Helicopters HUGHES 369D, 2009

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 ERA10LA053](https://openairdocs.org/ntsb/ERA10LA053.md): Hughes 369 · Baxley, GA · Accident · No injuries · Limited investigation · Final report · Nov 6, 2009 · N89ZC · Substantial damage
  > A loss of engine power due to fuel starvation resulting from the pilot’s inadequate preflight inspection of the main fuel valve position.
- [NTSB ERA09FA414](https://openairdocs.org/ntsb/ERA09FA414.md): Hughes 369 · Franklin, PA · Accident · 1 fatal · Field investigation · Final report · Jul 22, 2009 · N61735 · Substantial damage
  > A loss of engine power due to fuel exhaustion as a result of the pilot's fuel mismanagement.
- [NTSB ERA09LA317](https://openairdocs.org/ntsb/ERA09LA317.md): Hughes 369D · Greenville, VA · Accident · Serious injuries · Limited investigation · Final report · Jun 2, 2009 · N8356F · Substantial damage
  > The inadequate design of the fourth-stage turbine wheel, resulting in the fatigue failure of one airfoil and a subsequent loss of engine power.
- [NTSB ERA09LA194](https://openairdocs.org/ntsb/ERA09LA194.md): Hughes 369D · Lee, MA · Accident · Serious injuries · Limited investigation · Final report · Mar 10, 2009 · N369RT · Substantial damage
  > The pilot's failure to maintain clearance from the overhead wire.
- [NTSB WPR09LA144](https://openairdocs.org/ntsb/WPR09LA144.md): MD Helicopter 369D · Trona, CA · Accident · Minor injuries · Limited investigation · Final report · Mar 7, 2009 · N501EF · Substantial damage
  > The pilot's failure to maintain control while landing in a high density altitude environment due to a loss of tail rotor effectiveness.

## 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") = 2009
  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=2009

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