# N5556A: Sikorsky S-51, registration cancelled 1971-01-27

- Type: Cancelled registration (FAA registry, deregistered aircraft)
- Cancelled: January 27, 1971
- Status when cancelled: Valid registration
- Airframe: [Sikorsky S-51](https://openairdocs.org/model/sikorsky-s-51) (registry code 8141102)
- Data sheets: [TCDS H-2](https://openairdocs.org/tcds/H-2) (OpenAirDocs)
- Serial number: 123139
- Type of aircraft: Rotorcraft
- Certificate issued: August 5, 1957
- Mode S code: A71529
- Owner when cancelled: [Ming Ayer Inc](https://openairdocs.org/faa-owner/MING%20AYER%20INC)
- Location: [Linden, NJ](https://openairdocs.org/faa-place/NJ/Linden)
- Owner type: Corporation
- The mark today: https://openairdocs.org/aircraft/N5556A
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=5556A
- Page: https://openairdocs.org/deregistered/N5556A-1971-01-27

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-51: https://openairdocs.org/model/sikorsky-s-51.md

## Other aircraft with N5556A

- [Cancelled 2013-08-15](https://openairdocs.org/deregistered/N5556A-2013-08-15): Raven Industries RALLY RX7, S/N RX7-125, built 1979. Registration expired, pending cancellation. Owner: [Cunningham C William](https://openairdocs.org/faa-owner/CUNNINGHAM%20C%20WILLIAM), [Memphis, TN](https://openairdocs.org/faa-place/TN/Memphis)

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