# N4201F: 2003 Ingraham Steve CHALLENGER II

- Status: Valid registration
- Airframe: [Ingraham Steve CHALLENGER II](https://openairdocs.org/model/ingraham-steve-challenger-ii) (registry code 056175D, 2 seats)
- Engine: [Rotax SEE BOMBADIER](https://openairdocs.org/engine/rotax-see-bombadier) (registry code 55555)
- Serial number: CH2-0303-2312
- Year built: 2003
- Type: Fixed wing single engine
- Engine type: Reciprocating
- Kit: Quad City Ultralight Acft Corp CHALLENGER II
- Airworthiness: Experimental, amateur built
- Airworthiness date: September 30, 2004
- Certificate issued: August 19, 2008
- Expires: July 31, 2028
- Mode S code: A4FE20
- Registered owner: [Defenbaugh Raymond](https://openairdocs.org/faa-owner/DEFENBAUGH%20RAYMOND)
- Location: [Biggsville, IL](https://openairdocs.org/faa-place/IL/Biggsville)
- Owner type: Individual
- Owner's area on the map: 40.8472° N, 90.8692° W: Placed by OpenAirDocs at the center of ZIP code 61418, within about 4 miles (OpenAirDocs). The owner's mailing address, not where the aircraft is based
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=4201F
- Page: https://openairdocs.org/aircraft/N4201F

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 (Ingraham Steve CHALLENGER II)

None in force.

### Matched by engine (Rotax SEE BOMBADIER)

None in force.

## Information bulletins (advisory)

None matched.

## NTSB investigations

None matched to N4201F.

## 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.

- [Incident 20050929022079I](https://openairdocs.org/incident/20050929022079I), Sep 29, 2005: Amtr CHALLENGERII (N4201F), Tuttle, OK, Minor damage. (-23) On September 29, 2005, the pilot of home built challenger ii was flying from thompson private airport (53OK) on a local flight. The pilot was returning…

## 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 N4201F

The FAA can reassign an N-number once a registration is cancelled. These aircraft carried N4201F before.

- [Cancelled 1982-08-25](https://openairdocs.org/deregistered/N4201F-1982-08-25): Cessna 172, S/N 46101. Owner: [Weathered Brenton W](https://openairdocs.org/faa-owner/WEATHERED%20BRENTON%20W), [Kansas City, MO](https://openairdocs.org/faa-place/MO/Kansas%20City)

## Related

- Other Ingraham Steve CHALLENGER II aircraft: https://openairdocs.org/model/ingraham-steve-challenger-ii/aircraft.md
- The Rotax SEE BOMBADIER engine: https://openairdocs.org/engine/rotax-see-bombadier.md

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