# N4002S: 1971 Sikorsky S-61N, registration cancelled 1971-05-14

- Type: Cancelled registration (FAA registry, deregistered aircraft)
- Cancelled: May 14, 1971
- Exported to: Denmark
- 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: 61487
- Year built: 1971
- Type of aircraft: Rotorcraft
- Certificate issued: May 14, 1971
- Mode S code: A4AF50
- Owner when cancelled: [Sikorsky Aircraft](https://openairdocs.org/faa-owner/SIKORSKY%20AIRCRAFT)
- Location: [Stratford, CT](https://openairdocs.org/faa-place/CT/Stratford)
- Owner type: Corporation
- The mark today: https://openairdocs.org/aircraft/N4002S
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=4002S
- Page: https://openairdocs.org/deregistered/N4002S-1971-05-14

From the FAA registry file of October 31, 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 N4002S

- [Registered now](https://openairdocs.org/aircraft/N4002S): Ayres S2R-T34, S/N 6003, built 1978

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.