# N40KF: Thornberg Bradley Curtis KITFOX IV

- Status: Valid registration
- Airframe: [Thornberg Bradley Curtis KITFOX IV](https://openairdocs.org/model/thornberg-bradley-curtis-kitfox-iv) (registry code 05618HW, 2 seats)
- Engine: [Rotax 912UL](https://openairdocs.org/engine/rotax-912ul) (registry code 55592)
- Serial number: 1563
- Type: Fixed wing single engine
- Engine type: Reciprocating
- Airworthiness: Experimental, amateur built
- Airworthiness date: August 25, 2009
- Certificate issued: June 25, 2008
- Expires: July 31, 2027
- Mode S code: A4AB2F
- Registered owner: [Pierce Charles A](https://openairdocs.org/faa-owner/PIERCE%20CHARLES%20A)
- Location: [Yelm, WA](https://openairdocs.org/faa-place/WA/Yelm)
- Owner type: Individual
- Owner's area on the map: 46.8443° N, 122.4929° W: Placed by OpenAirDocs at the center of ZIP code 98597, within about 6 miles (OpenAirDocs). The owner's mailing address, not where the aircraft is based
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=40KF
- Page: https://openairdocs.org/aircraft/N40KF

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 (Thornberg Bradley Curtis KITFOX IV)

None in force.

### Matched by engine (Rotax 912UL)

None in force.

## Information bulletins (advisory)

None matched.

## NTSB investigations

None matched to N40KF.

## FAA accident and incident reports

None matched to N40KF.

## 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 Thornberg Bradley Curtis KITFOX IV aircraft: https://openairdocs.org/model/thornberg-bradley-curtis-kitfox-iv/aircraft.md
- The Rotax 912UL engine: https://openairdocs.org/engine/rotax-912ul.md

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