# N53172: Ryan Aeronautical ST3KR, registration cancelled 1955-11-29

- Type: Cancelled registration (FAA registry, deregistered aircraft)
- Cancelled: November 29, 1955
- Status when cancelled: Valid registration
- Airframe: [Ryan Aeronautical ST3KR](https://openairdocs.org/model/ryan-aeronautical-st3kr) (registry code 7830502)
- Data sheets: [TCDS A-749](https://openairdocs.org/tcds/A-749) (OpenAirDocs)
- Serial number: 1044
- Type of aircraft: Fixed wing single engine
- Certificate issued: April 27, 1950
- Mode S code: A6B78C
- Owner when cancelled: [Sides Oland S And Mellott D O](https://openairdocs.org/faa-owner/SIDES%20OLAND%20S%20AND%20MELLOTT%20D%20O)
- Location: [San Francisco, CA](https://openairdocs.org/faa-place/CA/San%20Francisco)
- Owner type: Partnership
- The mark today: https://openairdocs.org/aircraft/N53172
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=53172
- Page: https://openairdocs.org/deregistered/N53172-1955-11-29

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 Ryan Aeronautical ST3KR: https://openairdocs.org/model/ryan-aeronautical-st3kr.md

## Other aircraft with N53172

- [Cancelled 1999-04-12](https://openairdocs.org/deregistered/N53172-1999-04-12): Cessna A188B, S/N 18801662T. Exported to Bolivia. Owner: [Oklahoma City, OK](https://openairdocs.org/faa-place/OK/Oklahoma%20City)

---
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.