# N20SX: 2023 Sonex SONEX B

- Status: Valid registration
- Airframe: [Sonex SONEX B](https://openairdocs.org/model/sonex-sonex-b) (registry code 05634T5, 2 seats)
- Engine: [Aerovee 2.1 TURBO](https://openairdocs.org/engine/aerovee-2-1-turbo) (registry code 01406)
- Serial number: 001
- Year built: 2023
- Type: Fixed wing single engine
- Engine type: Reciprocating
- Airworthiness: Experimental, exhibition
- Airworthiness date: September 25, 2023
- Certificate issued: March 19, 2016
- Expires: March 31, 2029
- Mode S code: A19150
- Registered owner: [Sonex Aircraft LLC](https://openairdocs.org/faa-owner/SONEX%20AIRCRAFT%20LLC)
- Location: [Oshkosh, WI](https://openairdocs.org/faa-place/WI/Oshkosh)
- Owner type: LLC
- Owner's area on the map: 43.9441° N, 88.5348° W: Placed by OpenAirDocs at the center of ZIP code 54902, 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=20SX
- Page: https://openairdocs.org/aircraft/N20SX

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 (Sonex SONEX B)

None in force.

### Matched by engine (Aerovee 2.1 TURBO)

None in force.

## Information bulletins (advisory)

None matched.

## NTSB investigations

None matched to N20SX.

## FAA accident and incident reports

None matched to N20SX.

## 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 N20SX

The FAA can reassign an N-number once a registration is cancelled. These aircraft carried N20SX before.

- [Cancelled 1999-05-12](https://openairdocs.org/deregistered/N20SX-1999-05-12): Sonex SONEX, S/N 002. Exported to Italy. Owner: [Sonex Ltd](https://openairdocs.org/faa-owner/SONEX%20LTD), [Oshkosh, WI](https://openairdocs.org/faa-place/WI/Oshkosh)

## Related

- Other Sonex SONEX B aircraft: https://openairdocs.org/model/sonex-sonex-b/aircraft.md
- The Aerovee 2.1 TURBO engine: https://openairdocs.org/engine/aerovee-2-1-turbo.md

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