# N1143L: not currently registered

- Registered now: No (not in the FAA registry file). The mark may be reserved or free to assign
- Earlier aircraft: 3
- Last cancelled: December 2, 2025
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=1143L
- Page: https://openairdocs.org/aircraft/N1143L

## Aircraft that carried N1143L

- [Cancelled 2025-12-02](https://openairdocs.org/deregistered/N1143L-2025-12-02): Sikorsky UH-60L, S/N 87-26002, built 1987. Exported to Portugal. Owner: [Ace Aeronautics LLC](https://openairdocs.org/faa-owner/ACE%20AERONAUTICS%20LLC), [Guntersville, AL](https://openairdocs.org/faa-place/AL/Guntersville)
- [Cancelled 2013-04-29](https://openairdocs.org/deregistered/N1143L-2013-04-29): Morton John W CHRISTAVIA M 1, S/N 2, built 1998. Sale reported, pending cancellation. Owner: [Salem, OR](https://openairdocs.org/faa-place/OR/Salem)
- [Cancelled 1972-11-24](https://openairdocs.org/deregistered/N1143L-1972-11-24): Lake LA-4, S/N 305. Exported to Canada. Owner: [Skyways Inc](https://openairdocs.org/faa-owner/SKYWAYS%20INC)

## NTSB investigations on N1143L (2)

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 SEA00LA079](https://openairdocs.org/ntsb/SEA00LA079), May 1, 2000: Morton Christavia Mark I (N1143L), Salem, OR, substantial damage. Probable cause: The pilot/builder's failure to correct the center of gravity computations after a weight increase. A contributing factor was the pilot/builder's exceeding the forward CG limit in fuel weight, of…
- [NTSB FTW67F0621](https://openairdocs.org/ntsb/FTW67F0621), May 20, 1967: Lake LA-4 (N1143L), Hot Springs, AR, substantial damage

## FAA accident and incident reports on N1143L (1)

From the FAA Accident/Incident Data System. Reports are matched to registry aircraft by N-number and event date, checked against the reported make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

- [Accident 20000501004539A](https://openairdocs.org/incident/20000501004539A), May 1, 2000: N1143L, Salem, OR, No damage. (.23) On may 2, 2000 at approximately 0815 PDT, Mr. John w. morton, owner and operator of experimental aircraft N1143L, conducted his first test flight of this…

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