# N5231N: Lockheed 18-56, registration cancelled 1970-08-21

- Type: Cancelled registration (FAA registry, deregistered aircraft)
- Cancelled: August 21, 1970
- Status when cancelled: Valid registration
- Airframe: [Lockheed 18-56](https://openairdocs.org/model/lockheed-18-56) (registry code 5261642)
- Serial number: 2512
- Type of aircraft: Fixed wing multi engine
- Certificate issued: September 13, 1961
- Mode S code: A6969B
- Owner when cancelled: [US Oil Of Louisiana Inc](https://openairdocs.org/faa-owner/US%20OIL%20OF%20LOUISIANA%20INC)
- Location: [Houston, TX](https://openairdocs.org/faa-place/TX/Houston)
- Owner type: Corporation
- The mark today: https://openairdocs.org/aircraft/N5231N
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=5231N
- Page: https://openairdocs.org/deregistered/N5231N-1970-08-21

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

## Other aircraft with N5231N

- [Registered now](https://openairdocs.org/aircraft/N5231N): Cessna 182Q, S/N 18267587, built 1980

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