# N20K: 1929 Savoia Marchetti S-55-P, registration cancelled 1937-09-30

- Type: Cancelled registration (FAA registry, deregistered aircraft)
- Cancelled: September 30, 1937
- Status when cancelled: Valid registration
- Airframe: [Savoia Marchetti S-55-P](https://openairdocs.org/model/savoia-marchetti-s-55-p) (registry code 05621CJ)
- Serial number: 10517
- Year built: 1929
- Type of aircraft: Fixed wing multi engine
- Certificate issued: September 17, 1937
- Mode S code: A1908B
- Owner when cancelled: [Alaska Airways Inc](https://openairdocs.org/faa-owner/ALASKA%20AIRWAYS%20INC)
- Location: [Seattle, WA](https://openairdocs.org/faa-place/WA/Seattle)
- Owner type: Corporation
- Owner's area on the map: 47.6109° N, 122.3364° W: Placed by OpenAirDocs at the center of ZIP code 98101, within about a mile (OpenAirDocs). The owner's mailing address, not where the aircraft was based
- The mark today: https://openairdocs.org/aircraft/N20K
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=20K
- Page: https://openairdocs.org/deregistered/N20K-1937-09-30

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 Savoia Marchetti S-55-P: https://openairdocs.org/model/savoia-marchetti-s-55-p.md

## Other aircraft with N20K

- [Cancelled 2005-10-12](https://openairdocs.org/deregistered/N20K-2005-10-12): Aero Commander 1121B, S/N 144, built 1974. Owner: [White Industries Inc](https://openairdocs.org/faa-owner/WHITE%20INDUSTRIES%20INC), [Bates City, MO](https://openairdocs.org/faa-place/MO/Bates%20City)
- [Cancelled 1990-10-01](https://openairdocs.org/deregistered/N20K-1990-10-01): Robinson Helicopter R22 BETA, S/N 789. N-number assigned, not yet registered
- [Cancelled 1976-10-22](https://openairdocs.org/deregistered/N20K-1976-10-22): Urshan UR-1, S/N 1, built 1954. Owner: [Urshan Samuel A](https://openairdocs.org/faa-owner/URSHAN%20SAMUEL%20A), [San Diego, CA](https://openairdocs.org/faa-place/CA/San%20Diego)

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