# N912MX: 2017 Rex Taylor KOLB TWINSTAR M3XTRA

- Status: Valid registration
- Airframe: [Rex Taylor KOLB TWINSTAR M3XTRA](https://openairdocs.org/model/rex-taylor-kolb-twinstar-m3xtra) (registry code 05635X9, 2 seats)
- Engine: [Rotax 912ULS series](https://openairdocs.org/engine/rotax-912uls-series) (registry code 55572)
- Serial number: M3X143000112
- Year built: 2017
- Type: Fixed wing single engine
- Engine type: Reciprocating
- Kit: Kolb Aircraft Co LLC TWINSTAR MARK III XT
- Airworthiness: Experimental, amateur built
- Airworthiness date: July 26, 2017
- Certificate issued: March 13, 2017
- Expires: March 31, 2030
- Mode S code: AC9F42
- Registered owner: [Taylor Rex D](https://openairdocs.org/faa-owner/TAYLOR%20REX%20D)
- Location: [Cedar City, UT](https://openairdocs.org/faa-place/UT/Cedar%20City)
- Owner type: Individual
- Owner's area on the map: 37.7687° N, 113.1336° W: Placed by OpenAirDocs at the center of ZIP code 84721, within about 8 miles (OpenAirDocs). The owner's mailing address, not where the aircraft is based
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=912MX
- Page: https://openairdocs.org/aircraft/N912MX

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. 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 (Rex Taylor KOLB TWINSTAR M3XTRA)

None in force.

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

None in force.

## Information bulletins (advisory)

None matched.

## NTSB investigations

None matched to N912MX.

## FAA accident and incident reports

None matched to N912MX.

## 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 Rex Taylor KOLB TWINSTAR M3XTRA aircraft: https://openairdocs.org/model/rex-taylor-kolb-twinstar-m3xtra/aircraft.md
- The Rotax 912ULS series engine: https://openairdocs.org/engine/rotax-912uls-series.md

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.