# N673N: Waco CSO, registration cancelled 1937-02-09

- Type: Cancelled registration (FAA registry, deregistered aircraft)
- Cancelled: February 9, 1937
- Status when cancelled: Valid registration
- Airframe: [Waco CSO](https://openairdocs.org/model/waco-cso) (registry code 9601206)
- Data sheets: [TCDS ATC 240](https://openairdocs.org/tcds/ATC%20240) (OpenAirDocs)
- Serial number: C-3139
- Type of aircraft: Fixed wing single engine
- Certificate issued: November 1, 1937
- Mode S code: A8E809
- Owner when cancelled: [Smith E O](https://openairdocs.org/faa-owner/SMITH%20E%20O)
- Location: [Memphis, TN](https://openairdocs.org/faa-place/TN/Memphis)
- Owner type: Individual
- The mark today: https://openairdocs.org/aircraft/N673N
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=673N
- Page: https://openairdocs.org/deregistered/N673N-1937-02-09

From the FAA registry file of November 5, 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 Waco CSO: https://openairdocs.org/model/waco-cso.md

---
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.