# N4033S: 1973 Sikorsky S-61N, registration cancelled 1973-11-28

- Type: Cancelled registration (FAA registry, deregistered aircraft)
- Cancelled: November 28, 1973
- Exported to: United Kingdom
- Status when cancelled: Valid registration
- Airframe: [Sikorsky S-61N](https://openairdocs.org/model/sikorsky-s-61n) (registry code 8142104)
- Data sheets: [TCDS 1H15](https://openairdocs.org/tcds/1H15) (OpenAirDocs)
- Serial number: 61713
- Year built: 1973
- Type of aircraft: Rotorcraft
- Certificate issued: November 19, 1973
- Mode S code: A4BA98
- 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/N4033S
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=4033S
- Page: https://openairdocs.org/deregistered/N4033S-1973-11-28

From the FAA registry file of November 4, 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-61N: https://openairdocs.org/model/sikorsky-s-61n.md

## Other aircraft with N4033S

- [Cancelled 2017-10-12](https://openairdocs.org/deregistered/N4033S-2017-10-12): Robinson Helicopter R44 II, S/N 14129. Exported to China. Owner: [Robinson Helicopter Co](https://openairdocs.org/faa-owner/ROBINSON%20HELICOPTER%20CO), [Torrance, CA](https://openairdocs.org/faa-place/CA/Torrance)
- [Cancelled 1999-10-01](https://openairdocs.org/deregistered/N4033S-1999-10-01): Robinson Helicopter R22 BETA, S/N 1501. Exported to Belgium. Owner: [Robinson Helicopter Co](https://openairdocs.org/faa-owner/ROBINSON%20HELICOPTER%20CO), [Torrance, CA](https://openairdocs.org/faa-place/CA/Torrance)
- [Cancelled 1988-03-16](https://openairdocs.org/deregistered/N4033S-1988-03-16): Hiller UH-12E, S/N 5182. Triennial form not returned

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