# N4123B: Aero Commander 520, registration cancelled 1992-01-30

- Type: Cancelled registration (FAA registry, deregistered aircraft)
- Cancelled: January 30, 1992
- Status when cancelled: Triennial form not returned
- Airframe: [Aero Commander 520](https://openairdocs.org/model/aero-commander-520) (registry code 0141202)
- Data sheets: [TCDS 6A1](https://openairdocs.org/tcds/6A1) (OpenAirDocs)
- Serial number: 52027
- Type of aircraft: Fixed wing multi engine
- Certificate issued: May 16, 1988
- Last registry action: December 21, 1991
- Mode S code: A4DE51
- Owner when cancelled: [Denver Aerospace Science Museum](https://openairdocs.org/faa-owner/DENVER%20AEROSPACE%20SCIENCE%20MUSEUM)
- Location: [Aurora, CO](https://openairdocs.org/faa-place/CO/Aurora)
- Owner type: Corporation
- Owner's area on the map: 39.6998° N, 104.8378° W: Placed by OpenAirDocs at the center of ZIP code 80012, within about 2 miles (OpenAirDocs). The owner's mailing address, not where the aircraft was based
- The mark today: https://openairdocs.org/aircraft/N4123B
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=4123B
- Page: https://openairdocs.org/deregistered/N4123B-1992-01-30

From the FAA registry file of November 3, 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

## Other aircraft with N4123B

- [Registered now](https://openairdocs.org/aircraft/N4123B): Cameron Balloons US V-77, S/N 6067

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.