# N21953: 1939 Porterfield CP-50, registration cancelled 1955-10-19

- Type: Cancelled registration (FAA registry, deregistered aircraft)
- Cancelled: October 19, 1955
- Status when cancelled: Valid registration
- Airframe: [Porterfield CP-50](https://openairdocs.org/model/porterfield-cp-50) (registry code 6480114)
- Serial number: 550
- Year built: 1939
- Type of aircraft: Fixed wing single engine
- Certificate issued: June 16, 1955
- Mode S code: A1DE14
- Owner when cancelled: [Liljeblad Harry Etal](https://openairdocs.org/faa-owner/LILJEBLAD%20HARRY%20ETAL)
- Location: [East St Louis, IL](https://openairdocs.org/faa-place/IL/East%20St%20Louis)
- Owner type: Co-owned
- The mark today: https://openairdocs.org/aircraft/N21953
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=21953
- Page: https://openairdocs.org/deregistered/N21953-1955-10-19

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

## Other aircraft with N21953

- [Registered now](https://openairdocs.org/aircraft/N21953): Firefly Balloons FIREFLY 7, S/N F7-2024, built 2003
- [Cancelled 1998-05-08](https://openairdocs.org/deregistered/N21953-1998-05-08): Cessna 150L, S/N 15074564. Second triennial mailing, no response. Owner: [Ware Jerry L](https://openairdocs.org/faa-owner/WARE%20JERRY%20L), [Philippi, WV](https://openairdocs.org/faa-place/WV/Philippi)

---
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.
