# N421RF: 2015 Stephen V Rowson/William J Flo RANS S-6ES

- Status: Valid registration
- Airframe: [Stephen V Rowson/William J Flo RANS S-6ES](https://openairdocs.org/model/stephen-v-rowson-william-j-flo-rans-s-6es) (registry code 05634FB, 2 seats)
- Engine: [Rotax 912ULS series](https://openairdocs.org/engine/rotax-912uls-series) (registry code 55572)
- Serial number: 11131977
- Year built: 2015
- Type: Fixed wing single engine
- Engine type: 4 cycle
- Kit: Rans Designs Inc S-6ES
- Airworthiness: Experimental, amateur built
- Airworthiness date: November 20, 2015
- Certificate issued: August 14, 2021
- Expires: August 31, 2028
- Mode S code: A500D3
- Registered owner: [Flora William J](https://openairdocs.org/faa-owner/FLORA%20WILLIAM%20J)
- Location: [Parkville, MO](https://openairdocs.org/faa-place/MO/Parkville)
- Owner type: Individual
- Owner's area on the map: 39.2191° N, 94.7247° W: Placed by OpenAirDocs at the center of ZIP code 64152, within about 3 miles (OpenAirDocs). The owner's mailing address, not where the aircraft is based
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=421RF
- Page: https://openairdocs.org/aircraft/N421RF

From the FAA registry file of October 22, 2026. ADs below are matched by the registry's airframe and engine model codes. They may apply; each AD's applicability can narrow it by serial number, part number or installed equipment. This is not a compliance determination. The registry lists only the engine series, so ADs for every Rotax 912ULS model are included.

## ADs that may apply (OpenAirDocs): 0 in force

### Matched by airframe (Stephen V Rowson/William J Flo RANS S-6ES)

None in force.

### Matched by engine (Rotax 912ULS series)

None in force.

## Information bulletins (advisory)

None matched.

## NTSB investigations

None matched to N421RF.

## FAA accident and incident reports

None matched to N421RF.

## Reports on N421RF not matched to an aircraft (1)

They name N421RF, but no registry record covers the date, the aircraft registered then was built later, or the report describes another aircraft.

- [Incident 19980805043389I](https://openairdocs.org/incident/19980805043389I), Aug 5, 1998: Cessna 421C (N421RF), Bend, OR, Minor damage. (-5) During landing roll-out, right brake failed. Aircraft departed left side of runway. Came to stop with tail section still over runway-left prop sustained a…

## Service difficulty reports

None filed for this aircraft. Matched to this aircraft by N-number and event date, checked against the reported serial number, make and model.

## STCs that may be installed (OpenAirDocs)

None matched to this aircraft's models.

## Related

- Other Stephen V Rowson/William J Flo RANS S-6ES aircraft: https://openairdocs.org/model/stephen-v-rowson-william-j-flo-rans-s-6es/aircraft.md
- The Rotax 912ULS series engine: https://openairdocs.org/engine/rotax-912uls-series.md

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