# N18527: 1937 Porterfield CP-40, registration cancelled 1944-08-10

- Type: Cancelled registration (FAA registry, deregistered aircraft)
- Cancelled: August 10, 1944
- Status when cancelled: Valid registration
- Airframe: [Porterfield CP-40](https://openairdocs.org/model/porterfield-cp-40) (registry code 6480110)
- Serial number: 507
- Year built: 1937
- Type of aircraft: Fixed wing single engine
- Certificate issued: July 31, 1944
- Mode S code: A155FD
- Owner when cancelled: [Norton Samuel](https://openairdocs.org/faa-owner/NORTON%20SAMUEL)
- Location: [Sterling, CO](https://openairdocs.org/faa-place/CO/Sterling)
- Owner type: Individual
- The mark today: https://openairdocs.org/aircraft/N18527
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=18527
- Page: https://openairdocs.org/deregistered/N18527-1944-08-10

From the FAA registry file of November 3, 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 N18527

- [Registered now](https://openairdocs.org/aircraft/N18527): Cessna 150L, S/N 15073916, built 1972

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