# N51Y: San Francisco R-1, registration cancelled 1937-12-03

- Type: Cancelled registration (FAA registry, deregistered aircraft)
- Cancelled: December 3, 1937
- Status when cancelled: Valid registration
- Airframe: [San Francisco R-1](https://openairdocs.org/model/san-francisco-r-1) (registry code 05634Z6)
- Serial number: 2
- Type of aircraft: Fixed wing single engine
- Mode S code: A6613C
- Owner when cancelled: [Kling Rudolph A](https://openairdocs.org/faa-owner/KLING%20RUDOLPH%20A)
- Location: [Lemont, IL](https://openairdocs.org/faa-place/IL/Lemont)
- Owner type: Individual
- The mark today: https://openairdocs.org/aircraft/N51Y
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=51Y
- Page: https://openairdocs.org/deregistered/N51Y-1937-12-03

From the FAA registry file of November 5, 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 San Francisco R-1: https://openairdocs.org/model/san-francisco-r-1.md

## Other aircraft with N51Y

- [Registered now](https://openairdocs.org/aircraft/N51Y): Gentry Robert Chris TITAN T51 MUSTANG, S/N M07SV6COHK0116, built 2010
- [Cancelled 2005-10-26](https://openairdocs.org/deregistered/N51Y-2005-10-26): Schweizer SGS 1-26A, S/N 32, built 1955. Triennial form not returned. Owner: [Mcdaniel James M](https://openairdocs.org/faa-owner/MCDANIEL%20JAMES%20M), [Henderson, NV](https://openairdocs.org/faa-place/NV/Henderson)

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