# NTSB investigations: Hughes Helicopters HUGHES 369D, TX

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 CEN21LA139](https://openairdocs.org/ntsb/CEN21LA139.md): Hughes 369 · Kaufman, TX · Accident · No injuries · Class 4 · Limited · Final report · Feb 26, 2021 · N58431 · Substantial damage
  > The pilot’s failure to maintain clearance from a power line during low-level maneuvering.
- [NTSB CEN13FA075](https://openairdocs.org/ntsb/CEN13FA075.md): Hughes 369 · Childress, TX · Accident · 1 fatal · Field investigation · Final report · Nov 27, 2012 · N28MP · Substantial damage
  > The improper maintenance of the helicopter fuel system that resulted in erroneous fuel gauge indications and the pilot’s inadequate fuel management, both of which resulted in fuel exhaustion during a long-line hover. Also causal was the lack of company…
- [NTSB FTW01LA073](https://openairdocs.org/ntsb/FTW01LA073.md): Hughes 369D · Canadian, TX · Accident · No injuries · Limited investigation · Final report · Mar 2, 2001 · N8356F · Substantial damage
  > the helicopter's encounter with loss of tail rotor effectiveness while hovering out-of-ground effect, and the pilot's failure to maintain control. A contributing factor was the soft terrain condition.
- [NTSB FTW86LA041](https://openairdocs.org/ntsb/FTW86LA041.md): Hughes 369D · New Boston, TX · Accident · Minor injuries · Limited investigation · Final report · Mar 7, 1986 · N58420 · Substantial damage
  > The pilot experienced a tail rotor drive shaft flexible coupling failure when he pulled collective pitch to come to a hover before landing. The helicopter entered an uncontrollable right spin. During his haste to get the helicopter on the ground the pilot…
- [NTSB FTW84LA217](https://openairdocs.org/ntsb/FTW84LA217.md): Hughes 500D · New Braunfels, TX · Accident · No injuries · Limited investigation · Final report · May 2, 1984 · N5063G · Substantial damage
  > Despite adverse wx which forced the plt to stop once enroute to his dest the flt was continued. Directional control was lost when the tail rotor contacted the terrain separating both tail rotor blades from the acft and torsionally shearing the tail rotor…
- [NTSB FTW82DA195](https://openairdocs.org/ntsb/FTW82DA195.md): Hughes 500D · Amarillo, TX · Accident · No injuries · Final report · May 27, 1982 · N277SP · Substantial damage
  > The pilot reported that he was practicing autorotations. When he added power to recover from his eighth autorotation, he experienced compressor stalls in the engine and a complete loss of power at about 20 ft AGL. The helicopter settled and made a hard…
- [NTSB FTW79FA059](https://openairdocs.org/ntsb/FTW79FA059.md): Hughes 369D · Angleton, TX · Accident · 2 fatal · Closed · Mar 9, 1979 · N58333 · Destroyed

## 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" = 'TX' 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=TX

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