# N4000: Berliner CM5W, registration cancelled 1928-07-21

- Type: Cancelled registration (FAA registry, deregistered aircraft)
- Cancelled: July 21, 1928
- Status when cancelled: Valid registration
- Airframe: [Berliner CM5W](https://openairdocs.org/model/berliner-cm5w) (registry code 0563970)
- Serial number: 1
- Type of aircraft: Fixed wing single engine
- Mode S code: A4AEF9
- Owner when cancelled: [Potomac Flying Service Inc](https://openairdocs.org/faa-owner/POTOMAC%20FLYING%20SERVICE%20INC)
- Location: [South Washington, VA](https://openairdocs.org/faa-place/VA/South%20Washington)
- Owner type: Corporation
- The mark today: https://openairdocs.org/aircraft/N4000
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=4000
- Page: https://openairdocs.org/deregistered/N4000-1928-07-21

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 Berliner CM5W: https://openairdocs.org/model/berliner-cm5w.md

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