# N25401: 1939 Porterfield CP-50, registration cancelled 1982-03-17

- Type: Cancelled registration (FAA registry, deregistered aircraft)
- Cancelled: March 17, 1982
- Exported to: United Kingdom
- Status when cancelled: Valid registration
- Airframe: [Porterfield CP-50](https://openairdocs.org/model/porterfield-cp-50) (registry code 6480114)
- Serial number: 581
- Year built: 1939
- Type of aircraft: Fixed wing single engine
- Certificate issued: April 28, 1978
- Mode S code: A268CC
- Owner when cancelled: [Lawrence Billy A](https://openairdocs.org/faa-owner/LAWRENCE%20BILLY%20A)
- Location: [San Francisco, CA](https://openairdocs.org/faa-place/CA/San%20Francisco)
- Owner type: Individual
- Owner's area on the map: 37.8020° N, 122.4340° W: Placed by OpenAirDocs at the center of ZIP code 94123, within about a mile (OpenAirDocs). The owner's mailing address, not where the aircraft was based
- The mark today: https://openairdocs.org/aircraft/N25401
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=25401
- Page: https://openairdocs.org/deregistered/N25401-1982-03-17

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 Porterfield CP-50: https://openairdocs.org/model/porterfield-cp-50.md

## Other aircraft with N25401

- [Cancelled 1991-03-22](https://openairdocs.org/deregistered/N25401-1991-03-22): Omni Ultralights ROTEC RALLY 3, S/N 9058. Triennial form not returned. Owner: [Omni Ultralights Inc](https://openairdocs.org/faa-owner/OMNI%20ULTRALIGHTS%20INC), [Dunwoody, GA](https://openairdocs.org/faa-place/GA/Dunwoody)

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