# N56253: Ryan Aeronautical ST3KR, registration cancelled 1973-09-04

- Type: Cancelled registration (FAA registry, deregistered aircraft)
- Cancelled: September 4, 1973
- 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: 1484
- Type of aircraft: Fixed wing single engine
- Certificate issued: June 26, 1972
- Mode S code: A7317B
- Owner when cancelled: [Sullivan Michael D](https://openairdocs.org/faa-owner/SULLIVAN%20MICHAEL%20D)
- Location: [El Segundo, CA](https://openairdocs.org/faa-place/CA/El%20Segundo)
- Owner type: Individual
- The mark today: https://openairdocs.org/aircraft/N56253
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=56253
- Page: https://openairdocs.org/deregistered/N56253-1973-09-04

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

## 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 OAK68A0035](https://openairdocs.org/ntsb/OAK68A0035), Oct 8, 1967: Ryan ST-3KR (N56253), Moss Beach, CA, destroyed, 1 fatal

## Other aircraft with N56253

- [Registered now](https://openairdocs.org/aircraft/N56253): Breezer BREEZER, S/N 005LSA

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