# N520S: Lockheed 1329-23, registration cancelled 1981-05-07

- Type: Cancelled registration (FAA registry, deregistered aircraft)
- Cancelled: May 7, 1981
- Status when cancelled: Valid registration
- Airframe: [Lockheed 1329-23](https://openairdocs.org/model/lockheed-1329-23) (registry code 5263103)
- Serial number: 5084
- Type of aircraft: Fixed wing multi engine
- Certificate issued: June 20, 1977
- Mode S code: A68A7E
- Owner when cancelled: [Texasgulf Aviation Inc](https://openairdocs.org/faa-owner/TEXASGULF%20AVIATION%20INC)
- Location: [Stamford, CT](https://openairdocs.org/faa-place/CT/Stamford)
- Owner type: Corporation
- The mark today: https://openairdocs.org/aircraft/N520S
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=520S
- Page: https://openairdocs.org/deregistered/N520S-1981-05-07

From the FAA registry file of October 28, 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 1329-23: https://openairdocs.org/model/lockheed-1329-23.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 DCA81AA009](https://openairdocs.org/ntsb/DCA81AA009), Feb 11, 1981: Lockheed 1329 (N520S), White Plains, NY, destroyed, 8 fatal

## FAA accident and incident reports (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 19810211003539A](https://openairdocs.org/incident/19810211003539A), Feb 11, 1981: Lkheed 1329 (N520S), White Plains, NY, Destroyed, 6 fatal. During ILS approach, aircraft crashed 1 mile short of runway. Electrical system and crew distractions factors.

## Other aircraft with N520S

- [Registered now](https://openairdocs.org/aircraft/N520S): Cirrus Design SR22T, S/N 8973, built 2022

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