# N921M: Viking Flying Boat KITTY HAWK B-4, registration cancelled

- Type: Cancelled registration (FAA registry, deregistered aircraft)
- Cancelled: date not recorded
- Status when cancelled: Valid registration
- Airframe: [Viking Flying Boat KITTY HAWK B-4](https://openairdocs.org/model/viking-flying-boat-kitty-hawk-b-4) (registry code 9520102)
- Data sheets: [TCDS ATC 166](https://openairdocs.org/tcds/ATC%20166) (OpenAirDocs)
- Serial number: 13
- Type of aircraft: Fixed wing single engine
- Mode S code: ACC2F4
- Owner when cancelled: [Viking Flying Boat Co](https://openairdocs.org/faa-owner/VIKING%20FLYING%20BOAT%20CO)
- Owner type: Corporation
- The mark today: https://openairdocs.org/aircraft/N921M
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=921M
- Page: https://openairdocs.org/deregistered/N921M-undated

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 Viking Flying Boat KITTY HAWK B-4: https://openairdocs.org/model/viking-flying-boat-kitty-hawk-b-4.md

## Other aircraft with N921M

- [Cancelled 2024-04-15](https://openairdocs.org/deregistered/N921M-2024-04-15): Schleicher ASW-20B, S/N 20622, built 1983. Sale reported, canceled. Owner: [Nashville, TN](https://openairdocs.org/faa-place/TN/Nashville)

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