# N6640: Berliner CM4, registration cancelled

- Type: Cancelled registration (FAA registry, deregistered aircraft)
- Cancelled: date not recorded
- Status when cancelled: Valid registration
- Airframe: [Berliner CM4](https://openairdocs.org/model/berliner-cm4) (registry code 05637HS)
- Serial number: 6
- Type of aircraft: Fixed wing single engine
- Mode S code: A8C56D
- Owner when cancelled: [Berliner Aircraft Company Inc](https://openairdocs.org/faa-owner/BERLINER%20AIRCRAFT%20COMPANY%20INC)
- Location: [Alexandria, VA](https://openairdocs.org/faa-place/VA/Alexandria)
- Owner type: Corporation
- The mark today: https://openairdocs.org/aircraft/N6640
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=6640
- Page: https://openairdocs.org/deregistered/N6640-undated

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 Berliner CM4: https://openairdocs.org/model/berliner-cm4.md

## Other aircraft with N6640

- [Cancelled 1981-05-11](https://openairdocs.org/deregistered/N6640-1981-05-11): Grumman G-164A, S/N 768. Owner: [Benfield James](https://openairdocs.org/faa-owner/BENFIELD%20JAMES), [Beedeville, AR](https://openairdocs.org/faa-place/AR/Beedeville)

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