# N439KF: 2025 Burroughs Garrett KITFOX S7 STI

- Status: Valid registration
- Airframe: [Burroughs Garrett KITFOX S7 STI](https://openairdocs.org/model/burroughs-garrett-kitfox-s7-sti) (registry code 056422O, 2 seats)
- Engine: [Rotax 916 IS series](https://openairdocs.org/engine/rotax-916-is-series) (registry code 55622)
- Data sheets: [TCDS E00051EN](https://openairdocs.org/tcds/E00051EN) (BRP-Rotax GmbH & Co KG) (OpenAirDocs)
- Serial number: KA21087491
- Year built: 2025
- Type: Fixed wing single engine
- Engine type: Reciprocating
- Kit: Kitfox Aircraft LLC KITFOX SERIES 7 STI
- Airworthiness: Experimental, amateur built
- Airworthiness date: June 7, 2025
- Certificate issued: April 14, 2025
- Expires: April 30, 2032
- Mode S code: A54574
- Registered owner: [Arbitrage Holdings LLC](https://openairdocs.org/faa-owner/ARBITRAGE%20HOLDINGS%20LLC)
- Location: [Columbia Falls, MT](https://openairdocs.org/faa-place/MT/Columbia%20Falls)
- Owner type: LLC
- Owner's area on the map: 48.4370° N, 114.1687° W: Placed by OpenAirDocs at the center of ZIP code 59912, 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=439KF
- Page: https://openairdocs.org/aircraft/N439KF

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 916 IS model are included.

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

### Matched by airframe (Burroughs Garrett KITFOX S7 STI)

None in force.

### Matched by engine (Rotax 916 IS series)

None in force.

## Information bulletins (advisory)

None matched.

## NTSB investigations

None matched to N439KF.

## FAA accident and incident reports

None matched to N439KF.

## 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 Burroughs Garrett KITFOX S7 STI aircraft: https://openairdocs.org/model/burroughs-garrett-kitfox-s7-sti/aircraft.md
- The Rotax 916 IS series engine: https://openairdocs.org/engine/rotax-916-is-series.md

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