# N53998: 1941 Ryan Aeronautical ST3KR, registration cancelled 2013-01-30

- Type: Cancelled registration (FAA registry, deregistered aircraft)
- Cancelled: January 30, 2013
- Status when cancelled: Sale reported, canceled
- Airframe: [Ryan Aeronautical ST3KR](https://openairdocs.org/model/ryan-aeronautical-st3kr) (registry code 7830502)
- Engine: [Kinner R5 series](https://openairdocs.org/engine/kinner-r5-series) (registry code 37504)
- Data sheets: [TCDS A-749](https://openairdocs.org/tcds/A-749) (OpenAirDocs)
- Serial number: 1053
- Year built: 1941
- Type of aircraft: Fixed wing single engine
- Engine type: Reciprocating
- Airworthiness: Experimental, research and development
- Airworthiness date: October 12, 1955
- Last registry action: June 29, 1990
- Mode S code: A6D590
- Location: [Pensacola, FL](https://openairdocs.org/faa-place/FL/Pensacola)
- Owner type: Individual
- Owner's area on the map: 30.3506° N, 87.3169° W: Placed by OpenAirDocs at the center of ZIP code 32508, within about a mile (OpenAirDocs). The owner's mailing address, not where the aircraft was based
- The mark today: https://openairdocs.org/aircraft/N53998
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=53998
- Page: https://openairdocs.org/deregistered/N53998-2013-01-30

From the FAA registry file of October 31, 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 UNK65X1240](https://openairdocs.org/ntsb/UNK65X1240), Jan 6, 1965: Ryan ST3KR (N53998), Colorado Spgs, CO, minor damage

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