# NTSB investigations: Hughes Helicopters HUGHES 369D, 1996

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 SEA97LA032](https://openairdocs.org/ntsb/SEA97LA032.md): Hughes 369D · Forks, WA · Accident · Serious injuries · Limited investigation · Final report · Nov 16, 1996 · N5225C · Substantial damage
  > fuel contamination, which resulted in loss of engine power. Factors relating to the accident included: improper servicing of the helicopter, and a lack of suitable terrain for an emergency landing due to the proximity of trees.
- [NTSB LAX97LA039](https://openairdocs.org/ntsb/LAX97LA039.md): McDonnell Douglas 369D · Hana, HI · Accident · No injuries · Limited investigation · Final report · Nov 13, 1996 · N8625F · Substantial damage
  > subsequent failure of the spur adapter gearshaft (SAG), after 'retaining ring to compressor impeller machining' occurred and allowed the SAG to shift aft. The mechanism which induced the ring to impeller machining was not determined. Mountainous terrain in…
- [NTSB ANC96LA111](https://openairdocs.org/ntsb/ANC96LA111.md): McDonnell Douglas MD369D · Healy, AK · Accident · Minor injuries · Limited investigation · Final report · Aug 4, 1996 · N58269 · 2 aircraft · No damage
  > The inadequate visual outlook by the pilots of both aircraft, and their failure to see and avoid the other aircraft. A factor associated with the accident was sunglare affecting the helicopter pilot's vision.
- [NTSB SEA96LA144](https://openairdocs.org/ntsb/SEA96LA144.md): Hughes 369D · Mcminnville, OR · Accident · Minor injuries · Limited investigation · Final report · Jul 6, 1996 · N5110Y · Substantial damage
  > improper maintenance (replacement) and inspection of the engine fuel governor by company maintenance personnel, the pilot's inadequate preflight inspection, and a subsequent disconnect of the adjustable governor lever control rod, which disabled the engine…
- [NTSB ANC96TA092](https://openairdocs.org/ntsb/ANC96TA092.md): Hughes 369D · Ketchikan, AK · Accident · No injuries · Final report · Jun 26, 1996 · N5125Q · Substantial damage
  > The pilot's failure to maintain control of the helicopter. The pilot's selection of unsuitable terrain for landing was a factor in the accident.
- [NTSB ANC96LA045](https://openairdocs.org/ntsb/ANC96LA045.md): McDonnell Douglas H-369 · Delta Junction, AK · Accident · Minor injuries · Limited investigation · Final report · Apr 6, 1996 · N58268 · Substantial damage
  > loss of engine power for an undetermined reason.
- [NTSB CHI96FA091](https://openairdocs.org/ntsb/CHI96FA091.md): Hughes 369D · Dweese, NE · Accident · 2 fatal · Field investigation · Final report · Feb 19, 1996 · N5141Y · Destroyed
  > the pilot's improper in-flight planning and decision, and his lack of total experience in the type of operation. A factor was the crosswind.

## 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") = 1996
  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=1996

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