# N1089Y: 1981 Hughes Helicopters HUGHES 369D, registration cancelled 2020-08-15

- Type: Cancelled registration (FAA registry, deregistered aircraft)
- Cancelled: August 15, 2020
- Status when cancelled: Registration expired, pending cancellation
- Airframe: [Hughes Helicopters HUGHES 369D](https://openairdocs.org/model/hughes-helicopters-hughes-369d) (registry code 4470706)
- Engine: [Allison 250 SER 250HP](https://openairdocs.org/engine/allison-250-ser-250hp) (registry code 03002)
- Data sheets: [TCDS H3WE](https://openairdocs.org/tcds/H3WE) (OpenAirDocs)
- Serial number: 510962D
- Year built: 1981
- Type of aircraft: Rotorcraft
- Engine type: Turbo-shaft
- Airworthiness: Standard, normal
- Airworthiness date: May 20, 1981
- Certificate issued: May 17, 1985
- Last registry action: February 7, 2017
- Mode S code: A02616
- Owner when cancelled: [Olympic Air Inc](https://openairdocs.org/faa-owner/OLYMPIC%20AIR%20INC)
- Location: [Shelton, WA](https://openairdocs.org/faa-place/WA/Shelton)
- Owner type: Corporation
- Owner's area on the map: 47.2392° N, 123.1521° W: Placed by OpenAirDocs at the center of ZIP code 98584, within about 11 miles (OpenAirDocs). The owner's mailing address, not where the aircraft was based
- The mark today: https://openairdocs.org/aircraft/N1089Y
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=1089Y
- Page: https://openairdocs.org/deregistered/N1089Y-2020-08-15

From the FAA registry file of November 5, 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 SEA99LA092](https://openairdocs.org/ntsb/SEA99LA092), Jun 22, 1999: Hughes 369D (N1089Y), Shelton, WA, substantial damage. Probable cause: The pilot's failure to maintain rotor RPM during an autorotation.

## 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 19990622007449A](https://openairdocs.org/incident/19990622007449A), Jun 22, 1999: Hughes 369D (N1089Y), Shelton, WA, Destroyed. 1981 Hughes 369D helicopter landed hard during a simulated engine failure and was destroyed, other circumstances are unknown. (-23) the pilot was practicing…

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