# N22B: North American UNKNOWN, registration cancelled 1954-05-13

- Type: Cancelled registration (FAA registry, deregistered aircraft)
- Cancelled: May 13, 1954
- Status when cancelled: Valid registration
- Airframe: [North American UNKNOWN](https://openairdocs.org/model/north-american-unknown) (registry code 6400479)
- Serial number: ICA-41-51
- Type of aircraft: Fixed wing single engine
- Mode S code: A1DEC1
- Owner type: Corporation
- The mark today: https://openairdocs.org/aircraft/N22B
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=22B
- Page: https://openairdocs.org/deregistered/N22B-1954-05-13

From the FAA registry file of October 31, 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 North American UNKNOWN: https://openairdocs.org/model/north-american-unknown.md

## Other aircraft with N22B

- [Registered now](https://openairdocs.org/aircraft/N22B): Gulfstream Aerospace GVII-G500, S/N 72042, built 2019
- [Cancelled 1968-06-12](https://openairdocs.org/deregistered/N22B-1968-06-12): Learjet 23, S/N 23-044

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