# N511H: Lockheed 18-56, registration cancelled 1970-06-17

- Type: Cancelled registration (FAA registry, deregistered aircraft)
- Cancelled: June 17, 1970
- Status when cancelled: Valid registration
- Airframe: [Lockheed 18-56](https://openairdocs.org/model/lockheed-18-56) (registry code 5261642)
- Serial number: 2316
- Type of aircraft: Fixed wing multi engine
- Certificate issued: April 27, 1966
- Mode S code: A665D5
- Owner when cancelled: [Leon H Patin](https://openairdocs.org/faa-owner/LEON%20H%20PATIN)
- Location: [Miami, FL](https://openairdocs.org/faa-place/FL/Miami)
- Owner type: Individual
- The mark today: https://openairdocs.org/aircraft/N511H
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=511H
- Page: https://openairdocs.org/deregistered/N511H-1970-06-17

From the FAA registry file of October 29, 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

## NTSB investigations (1)

From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date, checked against the reported serial number, make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

- [NTSB MIA66A0132](https://openairdocs.org/ntsb/MIA66A0132), May 14, 1966: Lockheed 18 (N511H), Miami, FL, substantial damage

## Other aircraft with N511H

- [Cancelled 1935-10-01](https://openairdocs.org/deregistered/N511H-1935-10-01): American Eagle 129, S/N 532. Owner: [Gottberg Aviation Corp](https://openairdocs.org/faa-owner/GOTTBERG%20AVIATION%20CORP), [Columbus, NE](https://openairdocs.org/faa-place/NE/Columbus)

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