# N121U: 1959 Lockheed 188C, registration cancelled 1962-11-14

- Type: Cancelled registration (FAA registry, deregistered aircraft)
- Cancelled: November 14, 1962
- Status when cancelled: Valid registration
- Airframe: [Lockheed 188C](https://openairdocs.org/model/lockheed-188c) (registry code 5262604)
- Data sheets: [TCDS 4A22](https://openairdocs.org/tcds/4A22) (OpenAirDocs)
- Serial number: 188C1057
- Year built: 1959
- Type of aircraft: Fixed wing multi engine
- Certificate issued: September 9, 1959
- Mode S code: A0592B
- Owner when cancelled: [Northwest Airlines Inc](https://openairdocs.org/faa-owner/NORTHWEST%20AIRLINES%20INC)
- Location: [St Paul, MN](https://openairdocs.org/faa-place/MN/St%20Paul)
- Owner type: Corporation
- The mark today: https://openairdocs.org/aircraft/N121U
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=121U
- Page: https://openairdocs.org/deregistered/N121U-1962-11-14

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 Lockheed 188C: https://openairdocs.org/model/lockheed-188c.md

## Other aircraft with N121U

- [Registered now](https://openairdocs.org/aircraft/N121U): Aero C-104, S/N 215, built 1947

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