# N505ST: 1982 Hughes Helicopters HUGHES 369D, registration cancelled 2005-07-28

- Type: Cancelled registration (FAA registry, deregistered aircraft)
- Cancelled: July 28, 2005
- Exported to: New Zealand
- Status when cancelled: Sale reported
- Airframe: [Hughes Helicopters HUGHES 369D](https://openairdocs.org/model/hughes-helicopters-hughes-369d) (registry code 4470706)
- Engine: [Allison 250-C20 series](https://openairdocs.org/engine/allison-250-c20-series) (registry code 03020)
- Data sheets: [TCDS H3WE](https://openairdocs.org/tcds/H3WE), [TCDS E4CE](https://openairdocs.org/tcds/E4CE) (OpenAirDocs)
- Serial number: 1135D
- Year built: 1982
- Type of aircraft: Rotorcraft
- Engine type: Turbo-prop
- Airworthiness: Standard, normal
- Airworthiness date: June 22, 1983
- Last registry action: July 13, 2005
- Mode S code: A64E25
- Location: [Xxx, OK](https://openairdocs.org/faa-place/OK/Xxx)
- Owner type: Individual
- The mark today: https://openairdocs.org/aircraft/N505ST
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=505ST
- Page: https://openairdocs.org/deregistered/N505ST-2005-07-28

From the FAA registry file of October 29, 2026, cancelled registrations. Owners' street addresses are left out. The Mode S code belongs to the N-number, not the airframe.

ADs and bulletins for the Hughes Helicopters HUGHES 369D: https://openairdocs.org/model/hughes-helicopters-hughes-369d.md

## NTSB investigations (1)

From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date, checked against the reported serial number, make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

- [NTSB SEA04LA181](https://openairdocs.org/ntsb/SEA04LA181), Sep 4, 2004: Hughes 369D (N505ST), Cottage Grove, OR, substantial damage. Probable cause: In-flight loss of engine power during cruise for undetermined reasons.

## FAA accident and incident reports (1)

From the FAA Accident/Incident Data System. Reports are matched to registry aircraft by N-number and event date, checked against the reported make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

- [Accident 20040903022349A](https://openairdocs.org/incident/20040903022349A), Sep 3, 2004: Hughes 369D (N505ST), Cottage Grove, OR, Substantial damage. (-23) Pilot reported that he was apprx. 1000'AGL when he experienced a sudden loss of power and landed in a rock quarry area, the left skid caught the edge of…

## Other aircraft with N505ST

- [Registered now](https://openairdocs.org/aircraft/N505ST): Gogetair D O O ONE, S/N G009

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