# N4120B: 1953 Aero Commander 520, registration cancelled 2012-06-04

- Type: Cancelled registration (FAA registry, deregistered aircraft)
- Cancelled: June 4, 2012
- Status when cancelled: Revoked, canceled
- Airframe: [Aero Commander 520](https://openairdocs.org/model/aero-commander-520) (registry code 0141202)
- Engine: [Lycoming GO-435C&D series](https://openairdocs.org/engine/lycoming-go-435c-d-series) (registry code 41521)
- Data sheets: [TCDS 6A1](https://openairdocs.org/tcds/6A1) (OpenAirDocs)
- Serial number: 52099
- Year built: 1953
- Type of aircraft: Fixed wing multi engine
- Engine type: Reciprocating
- Last registry action: January 14, 1977
- Mode S code: A4DDE8
- Owner when cancelled: [Great Circle Avn](https://openairdocs.org/faa-owner/GREAT%20CIRCLE%20AVN)
- Location: [Miami Springs, FL](https://openairdocs.org/faa-place/FL/Miami%20Springs)
- Owner type: Corporation
- Owner's area on the map: 25.8166° N, 80.3105° W: Placed by OpenAirDocs at the center of ZIP code 33166, within about 2 miles (OpenAirDocs). The owner's mailing address, not where the aircraft was based
- The mark today: https://openairdocs.org/aircraft/N4120B
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=4120B
- Page: https://openairdocs.org/deregistered/N4120B-2012-06-04

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 Aero Commander 520: https://openairdocs.org/model/aero-commander-520.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 UNK65X1190](https://openairdocs.org/ntsb/UNK65X1190), Dec 30, 1964: Aero Comdr 520 (N4120B), Miami Beach, FL, destroyed

## Other aircraft with N4120B

- [Registered now](https://openairdocs.org/aircraft/N4120B): Bombardier DHC-8-402, S/N 4120

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