# N640: Dehavilland 4B (MAIL), registration cancelled 1934-07-20

- Type: Cancelled registration (FAA registry, deregistered aircraft)
- Cancelled: July 20, 1934
- Status when cancelled: Valid registration
- Airframe: [Dehavilland 4B (MAIL)](https://openairdocs.org/model/dehavilland-4b-mail) (registry code 2801927)
- Serial number: 100
- Type of aircraft: Fixed wing single engine
- Certificate issued: March 5, 1929
- Mode S code: A8653A
- Owner when cancelled: [Caddo Company Inc](https://openairdocs.org/faa-owner/CADDO%20COMPANY%20INC)
- Location: [Hollywood, CA](https://openairdocs.org/faa-place/CA/Hollywood)
- Owner type: Corporation
- The mark today: https://openairdocs.org/aircraft/N640
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=640
- Page: https://openairdocs.org/deregistered/N640-1934-07-20

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 Dehavilland 4B (MAIL): https://openairdocs.org/model/dehavilland-4b-mail.md

## Other aircraft with N640

- [Registered now](https://openairdocs.org/aircraft/N640): Grumman/Mckinnon Enterprises G21G, S/N 1201, built 1944
- [Cancelled 2001-07-06](https://openairdocs.org/deregistered/N640-2001-07-06): Grumman G-21A, S/N B-123. Triennial form not returned. Owner: [Teufel Nursery Inc](https://openairdocs.org/faa-owner/TEUFEL%20NURSERY%20INC), [Portland, OR](https://openairdocs.org/faa-place/OR/Portland)

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