# N21974: 1939 Porterfield CP-50, registration cancelled 1950-06-29

- Type: Cancelled registration (FAA registry, deregistered aircraft)
- Cancelled: June 29, 1950
- Status when cancelled: Valid registration
- Airframe: [Porterfield CP-50](https://openairdocs.org/model/porterfield-cp-50) (registry code 6480114)
- Serial number: 560
- Year built: 1939
- Type of aircraft: Fixed wing single engine
- Certificate issued: January 21, 1948
- Mode S code: A1DE5B
- Owner when cancelled: [Razor Freeman](https://openairdocs.org/faa-owner/RAZOR%20FREEMAN)
- Location: [Watsonville, CA](https://openairdocs.org/faa-place/CA/Watsonville)
- Owner type: Partnership
- The mark today: https://openairdocs.org/aircraft/N21974
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=21974
- Page: https://openairdocs.org/deregistered/N21974-1950-06-29

From the FAA registry file of October 29, 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 Porterfield CP-50: https://openairdocs.org/model/porterfield-cp-50.md

## Other aircraft with N21974

- [Cancelled 2014-09-16](https://openairdocs.org/deregistered/N21974-2014-09-16): Cessna 150L, S/N 15074581, built 1973. Registration expired, pending cancellation. Owner: [Alphin Aircraft Inc](https://openairdocs.org/faa-owner/ALPHIN%20AIRCRAFT%20INC), [Hagerstown, MD](https://openairdocs.org/faa-place/MD/Hagerstown)

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