# N25EN: 1991 Mark G Ellingson KITFOX IV

- Status: Valid registration
- Airframe: [Mark G Ellingson KITFOX IV](https://openairdocs.org/model/mark-g-ellingson-kitfox-iv) (registry code 05641JC, 2 seats)
- Engine: [Rotax 912ULS series](https://openairdocs.org/engine/rotax-912uls-series) (registry code 55572)
- Serial number: 1681
- Year built: 1991
- Type: Fixed wing single engine
- Engine type: Reciprocating
- Kit: Denney Aerocraft Company KITFOX IV
- Airworthiness: Experimental, amateur built
- Airworthiness date: January 31, 2024
- Certificate issued: March 7, 2023
- Expires: March 31, 2030
- Mode S code: A25596
- Registered owner: [Ellingson Mark](https://openairdocs.org/faa-owner/ELLINGSON%20MARK)
- Location: [Mesa, AZ](https://openairdocs.org/faa-place/AZ/Mesa)
- Owner type: Individual
- Owner's area on the map: 33.3957° N, 111.7866° W: Placed by OpenAirDocs at the center of ZIP code 85204, within about 2 miles (OpenAirDocs). The owner's mailing address, not where the aircraft is based
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=25EN
- Page: https://openairdocs.org/aircraft/N25EN

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 (Mark G Ellingson KITFOX IV)

None in force.

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

None in force.

## Information bulletins (advisory)

None matched.

## NTSB investigations (1)

From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date, checked against the reported serial number, make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

- [NTSB WPR24LA097](https://openairdocs.org/ntsb/WPR24LA097), Feb 14, 2024: Mark G Ellingson Kitfox IV (N25EN), Mesa, AZ, substantial damage. Probable cause: The pilot’s failure to maintain directional control during landing.

## FAA accident and incident reports (1)

From the FAA Accident/Incident Data System. Reports are matched to registry aircraft by N-number and event date, checked against the reported make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

- [Accident 20240214001489A](https://openairdocs.org/incident/20240214001489A), Feb 14, 2024: Mark G Ellingson KITFOX IV (N25EN), Mesa, AZ, Substantial damage. Mesa, AZ (ffz): [privacy data omitted], Kitfox IV, ffz-ffz. The aircraft ground-looped while landing runway 4R. The aircraft veered off to the left while on…

## 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 Mark G Ellingson KITFOX IV aircraft: https://openairdocs.org/model/mark-g-ellingson-kitfox-iv/aircraft.md
- The Rotax 912ULS series engine: https://openairdocs.org/engine/rotax-912uls-series.md

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