# NTSB investigations: Hughes Helicopters HUGHES 369D, AZ

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 WPR22LA078](https://openairdocs.org/ntsb/WPR22LA078.md): Hughes 369D · Strawberry, AZ · Accident · No injuries · Class 4 · Limited · Final report · Dec 21, 2021 · N111AD · Substantial damage
  > The pilot’s failure to maintain clearance from a static wire during approach.
- [NTSB LAX92T#A03](https://openairdocs.org/ntsb/LAX92T%23A03.md): Mcdonnell Douglas 369D · Mesa, AZ · Accident · No injuries · Class 3 · Final report · Feb 14, 1992 · N911FT · Substantial damage
- [NTSB LAX84FA405](https://openairdocs.org/ntsb/LAX84FA405.md): Hughes 369D · Mesa, AZ · Accident · 2 fatal · Field investigation · Final report · Jul 18, 1984 · N58369 · Destroyed
  > The helicopter experienced a main rotor drive system disconnect, an uncontrolled descent & subsequent inflight collision with terrain in a hilly desert area. This was the third & last in a planned series of marketing demo flts conducted for three USMC…
- [NTSB LAX82FUJ40](https://openairdocs.org/ntsb/LAX82FUJ40.md): Hughes 369D · Teec Nos Pos, AZ · Accident · Serious injuries · Final report · Apr 28, 1982 · N1089S · Substantial damage
  > The acft lost eng power & crashed while attempting an autorotation. Eng teardown revealed that the #2 bearing failed as a result of some of the ball retainers being broken & cracked between the ball pockets. This condition allowed the impeller assembly to…

## 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 c."eventStateOrRegion" = 'AZ' AND c."eventCountry" = 'USA'
  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&state=AZ

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