# N1811: 1941 Lockheed 18-56, registration cancelled 1978-03-09

- Type: Cancelled registration (FAA registry, deregistered aircraft)
- Cancelled: March 9, 1978
- Status when cancelled: Valid registration
- Airframe: [Lockheed 18-56](https://openairdocs.org/model/lockheed-18-56) (registry code 5261642)
- Serial number: 2131
- Year built: 1941
- Type of aircraft: Fixed wing multi engine
- Certificate issued: March 13, 1976
- Mode S code: A146DE
- Owner when cancelled: [US Department Of Treasury US Customs Service](https://openairdocs.org/faa-owner/US%20DEPARTMENT%20OF%20TREASURY%20US%20CUSTOMS%20SERVICE)
- Location: [Washington, DC](https://openairdocs.org/faa-place/DC/Washington)
- Owner type: Government
- The mark today: https://openairdocs.org/aircraft/N1811
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=1811
- Page: https://openairdocs.org/deregistered/N1811-1978-03-09

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 Lockheed 18-56: https://openairdocs.org/model/lockheed-18-56.md

## Other aircraft with N1811

- [Cancelled 1948-07-12](https://openairdocs.org/deregistered/N1811-1948-07-12): Travel Air Mfg 2000, S/N 237, built 1927. Owner: [Noonan John](https://openairdocs.org/faa-owner/NOONAN%20JOHN), [Guymon, OK](https://openairdocs.org/faa-place/OK/Guymon)

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