# N4020S: Sikorsky S-61A, registration cancelled 1972-03-30

- Type: Cancelled registration (FAA registry, deregistered aircraft)
- Cancelled: March 30, 1972
- Exported to: Malaysia
- Status when cancelled: Valid registration
- Airframe: [Sikorsky S-61A](https://openairdocs.org/model/sikorsky-s-61a) (registry code 814210C)
- Data sheets: [TCDS H2EA](https://openairdocs.org/tcds/H2EA) (OpenAirDocs)
- Serial number: 61494
- Type of aircraft: Rotorcraft
- Certificate issued: March 15, 1972
- Mode S code: A4B678
- Owner when cancelled: [Sikorsky Aircraft Division Of United Aircraft Corp](https://openairdocs.org/faa-owner/SIKORSKY%20AIRCRAFT%20DIVISION%20OF%20UNITED%20AIRCRAFT%20CORP)
- Location: [Stratford, CT](https://openairdocs.org/faa-place/CT/Stratford)
- Owner type: Corporation
- The mark today: https://openairdocs.org/aircraft/N4020S
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=4020S
- Page: https://openairdocs.org/deregistered/N4020S-1972-03-30

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-61A: https://openairdocs.org/model/sikorsky-s-61a.md

## Other aircraft with N4020S

- [Registered now](https://openairdocs.org/aircraft/N4020S): Arbc Inc DBA Lindstrand 90A, S/N 5779, built 2022
- [Cancelled 2013-07-11](https://openairdocs.org/deregistered/N4020S-2013-07-11): Cameron Balloons US N-77, S/N 5677, built 1991. Sale reported, canceled. Owner: [Hampton, VA](https://openairdocs.org/faa-place/VA/Hampton)
- [Cancelled 1988-04-26](https://openairdocs.org/deregistered/N4020S-1988-04-26): Raven S55A, S/N S55A830. N-number assigned, not yet registered
- [Cancelled 1980-05-02](https://openairdocs.org/deregistered/N4020S-1980-05-02): Ayres S-2R, S/N T34-014. Exported to Canada. Owner: [Ayres Corp](https://openairdocs.org/faa-owner/AYRES%20CORP), [Albany, GA](https://openairdocs.org/faa-place/GA/Albany)

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