# N73SR: 1988 Riddle R A/Riddle R S RV 4, registration cancelled 2015-05-04

- Type: Cancelled registration (FAA registry, deregistered aircraft)
- Cancelled: May 4, 2015
- Status when cancelled: Registration expired, pending cancellation
- Airframe: [Riddle R A/Riddle R S RV 4](https://openairdocs.org/model/riddle-r-a-riddle-r-s-rv-4) (registry code 056088W)
- Engine: [Lycoming 0-320 series](https://openairdocs.org/engine/lycoming-0-320-series) (registry code 41508)
- Data sheets: [TCDS E-274](https://openairdocs.org/tcds/E-274) (OpenAirDocs)
- Serial number: 1653
- Year built: 1988
- Type of aircraft: Fixed wing single engine
- Engine type: Reciprocating
- Airworthiness: Experimental, amateur built
- Airworthiness date: September 12, 1988
- Certificate issued: February 26, 1993
- Last registry action: April 2, 2002
- Mode S code: A9CA52
- Owner when cancelled: [Riddell Ralph S](https://openairdocs.org/faa-owner/RIDDELL%20RALPH%20S)
- Location: [Vancouver, WA](https://openairdocs.org/faa-place/WA/Vancouver)
- Owner type: Individual
- Owner's area on the map: 45.6306° N, 122.5148° W: Placed by OpenAirDocs at the center of ZIP code 98684, within about a mile (OpenAirDocs). The owner's mailing address, not where the aircraft was based
- The mark today: https://openairdocs.org/aircraft/N73SR
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=73SR
- Page: https://openairdocs.org/deregistered/N73SR-2015-05-04

From the FAA registry file of October 29, 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 Riddle R A/Riddle R S RV 4: https://openairdocs.org/model/riddle-r-a-riddle-r-s-rv-4.md

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