# N17958: 2020 Kitfox SONEX

- Status: Valid registration
- Airframe: [Kitfox SONEX](https://openairdocs.org/model/kitfox-sonex) (registry code 05639DA, 2 seats)
- Engine: [Greatplain 2180CC VW](https://openairdocs.org/engine/greatplain-2180cc-vw) (registry code 31501)
- Serial number: 1087
- Year built: 2020
- Type: Fixed wing single engine
- Engine type: Reciprocating
- Kit: Sonex Aircraft LLC SONEX
- Airworthiness: Experimental, amateur built
- Airworthiness date: August 28, 2020
- Certificate issued: September 15, 2022
- Expires: September 30, 2029
- Mode S code: A13DC4
- Registered owner: [Polk Justin L](https://openairdocs.org/faa-owner/POLK%20JUSTIN%20L)
- Location: [Greenville, TX](https://openairdocs.org/faa-place/TX/Greenville)
- Owner type: Individual
- Owner's area on the map: 33.0679° N, 96.0880° W: Placed by OpenAirDocs at the center of ZIP code 75402, within about 5 miles (OpenAirDocs). The owner's mailing address, not where the aircraft is based
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=17958
- Page: https://openairdocs.org/aircraft/N17958

From the FAA registry file of October 24, 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.

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

### Matched by airframe (Kitfox SONEX)

None in force.

### Matched by engine (Greatplain 2180CC VW)

None in force.

## Information bulletins (advisory)

None matched.

## NTSB investigations

None matched to N17958.

## FAA accident and incident reports

None matched to N17958.

## 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.

## Earlier aircraft with N17958

The FAA can reassign an N-number once a registration is cancelled. These aircraft carried N17958 before.

- [Cancelled 2012-07-30](https://openairdocs.org/deregistered/N17958-2012-07-30): Schweizer SGS 2-33A, S/N 288, built 1973. Sale reported, canceled. Owner: [Lakewood Airport, NJ](https://openairdocs.org/faa-place/NJ/Lakewood%20Airport)

## Related

- Other Kitfox SONEX aircraft: https://openairdocs.org/model/kitfox-sonex/aircraft.md
- The Greatplain 2180CC VW engine: https://openairdocs.org/engine/greatplain-2180cc-vw.md

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