# N4031S: 1973 Sikorsky S-61D, registration cancelled 1973-11-23

- Type: Cancelled registration (FAA registry, deregistered aircraft)
- Cancelled: November 23, 1973
- Exported to: Brazil
- Status when cancelled: Valid registration
- Airframe: [Sikorsky S-61D](https://openairdocs.org/model/sikorsky-s-61d) (registry code 814210L)
- Data sheets: [TCDS H2EA](https://openairdocs.org/tcds/H2EA) (OpenAirDocs)
- Serial number: 61706
- Year built: 1973
- Type of aircraft: Rotorcraft
- Certificate issued: September 20, 1973
- Mode S code: A4BA52
- Owner when cancelled: [Sikorsky Aircraft Division](https://openairdocs.org/faa-owner/SIKORSKY%20AIRCRAFT%20DIVISION)
- Location: [Stratford, CT](https://openairdocs.org/faa-place/CT/Stratford)
- Owner type: Corporation
- The mark today: https://openairdocs.org/aircraft/N4031S
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=4031S
- Page: https://openairdocs.org/deregistered/N4031S-1973-11-23

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-61D: https://openairdocs.org/model/sikorsky-s-61d.md

## Other aircraft with N4031S

- [Registered now](https://openairdocs.org/aircraft/N4031S): Adams Balloon A55, S/N 159
- [Cancelled 1981-06-29](https://openairdocs.org/deregistered/N4031S-1981-06-29): Hiller UH-12E, S/N 5171, built 1981. Exported to Argentina. Owner: [Hiller Aviation](https://openairdocs.org/faa-owner/HILLER%20AVIATION), [Porterville, CA](https://openairdocs.org/faa-place/CA/Porterville)

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