# N1165U: 1959 Sikorsky S-58ET, registration cancelled 1971-06-22

- Type: Cancelled registration (FAA registry, deregistered aircraft)
- Cancelled: June 22, 1971
- Exported to: Australia
- Status when cancelled: Valid registration
- Airframe: [Sikorsky S-58ET](https://openairdocs.org/model/sikorsky-s-58et) (registry code 8141803)
- Data sheets: [TCDS 1H11](https://openairdocs.org/tcds/1H11) (OpenAirDocs)
- Serial number: 581129
- Year built: 1959
- Type of aircraft: Rotorcraft
- Certificate issued: October 26, 1970
- Mode S code: A04597
- Owner when cancelled: [Sikorsky Aircraft Div United Aircraft Corp](https://openairdocs.org/faa-owner/SIKORSKY%20AIRCRAFT%20DIV%20UNITED%20AIRCRAFT%20CORP)
- Location: [Stratford, CT](https://openairdocs.org/faa-place/CT/Stratford)
- Owner type: Corporation
- Owner's area on the map: 41.1845° N, 73.1332° W: Placed by OpenAirDocs: center of Stratford, CT, within about 2 miles (OpenAirDocs). The owner's mailing address, not where the aircraft was based
- The mark today: https://openairdocs.org/aircraft/N1165U
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=1165U
- Page: https://openairdocs.org/deregistered/N1165U-1971-06-22

From the FAA registry file of November 3, 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 Sikorsky S-58ET: https://openairdocs.org/model/sikorsky-s-58et.md

## Other aircraft with N1165U

- [Registered now](https://openairdocs.org/aircraft/N1165U): Cessna 172M, S/N 17266872, built 1976

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