# N6104F: 2000 Mader Allen J CHALLENGER II

- Status: Valid registration
- Airframe: [Mader Allen J CHALLENGER II](https://openairdocs.org/model/mader-allen-j-challenger-ii) (registry code 05610GP, 2 seats)
- Engine: [Bombardier ROTAX (ALL)](https://openairdocs.org/engine/bombardier-rotax-all) (registry code 09050)
- Serial number: 1933
- Year built: 2000
- Type: Fixed wing single engine
- Engine type: Reciprocating
- Kit: Quad City Ultralight Acft Corp CHALLENGER II
- Airworthiness: Experimental, amateur built
- Airworthiness date: November 9, 2000
- Certificate issued: June 2, 2000
- Expires: August 31, 2027
- Mode S code: A7F1A8
- Registered owner: [Mader Allen Joseph](https://openairdocs.org/faa-owner/MADER%20ALLEN%20JOSEPH)
- Location: [Medford, WI](https://openairdocs.org/faa-place/WI/Medford)
- Owner type: Individual
- Owner's area on the map: 45.1974° N, 90.4077° W: Placed by OpenAirDocs at the center of ZIP code 54451, within about 10 miles (OpenAirDocs). The owner's mailing address, not where the aircraft is based
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=6104F
- Page: https://openairdocs.org/aircraft/N6104F

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 (Mader Allen J CHALLENGER II)

None in force.

### Matched by engine (Bombardier ROTAX (ALL))

None in force.

## Information bulletins (advisory)

None matched.

## NTSB investigations

None matched to N6104F.

## FAA accident and incident reports

None matched to N6104F.

## 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 Mader Allen J CHALLENGER II aircraft: https://openairdocs.org/model/mader-allen-j-challenger-ii/aircraft.md
- The Bombardier ROTAX (ALL) engine: https://openairdocs.org/engine/bombardier-rotax-all.md

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