# N18525: Porterfield CP-40, registration cancelled 1948-08-10

- Type: Cancelled registration (FAA registry, deregistered aircraft)
- Cancelled: August 10, 1948
- Status when cancelled: Valid registration
- Airframe: [Porterfield CP-40](https://openairdocs.org/model/porterfield-cp-40) (registry code 6480110)
- Serial number: 505
- Type of aircraft: Fixed wing single engine
- Certificate issued: December 29, 1941
- Mode S code: A155FB
- Owner when cancelled: [Dewey Aviation Club Inc](https://openairdocs.org/faa-owner/DEWEY%20AVIATION%20CLUB%20INC)
- Location: [Dewey, OK](https://openairdocs.org/faa-place/OK/Dewey)
- Owner type: Corporation
- The mark today: https://openairdocs.org/aircraft/N18525
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=18525
- Page: https://openairdocs.org/deregistered/N18525-1948-08-10

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-40: https://openairdocs.org/model/porterfield-cp-40.md

## Other aircraft with N18525

- [Cancelled 2006-03-28](https://openairdocs.org/deregistered/N18525-2006-03-28): Cessna 150L, S/N 15073914, built 1972. Triennial form not returned. Owner: [Maclachlan John R](https://openairdocs.org/faa-owner/MACLACHLAN%20JOHN%20R), [Gretna, LA](https://openairdocs.org/faa-place/LA/Gretna)

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.