# N6171Q: Gannon Philip J CHALLENGER II

- Status: Valid registration
- Airframe: [Gannon Philip J CHALLENGER II](https://openairdocs.org/model/gannon-philip-j-challenger-ii) (registry code 05903F7, 2 seats)
- Engine: [Rotax 503ULDCDI](https://openairdocs.org/engine/rotax-503uldcdi) (registry code 55568)
- Serial number: CH2-1105-2683
- Type: Fixed wing single engine
- Engine type: 2 cycle
- Airworthiness: Experimental, registered before 01/31/08
- Airworthiness date: June 1, 2009
- Certificate issued: November 7, 2019
- Expires: November 30, 2029
- Mode S code: A80B49
- Registered owner: [Blake John C](https://openairdocs.org/faa-owner/BLAKE%20JOHN%20C)
- Location: [Oshkosh, WI](https://openairdocs.org/faa-place/WI/Oshkosh)
- Owner type: Individual
- Owner's area on the map: 44.0234° N, 88.6238° W: Placed by OpenAirDocs at the center of ZIP code 54904, within about 5 miles (OpenAirDocs). The owner's mailing address, not where the aircraft is based
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=6171Q
- Page: https://openairdocs.org/aircraft/N6171Q

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 (Gannon Philip J CHALLENGER II)

None in force.

### Matched by engine (Rotax 503ULDCDI)

None in force.

## Information bulletins (advisory)

None matched.

## NTSB investigations

None matched to N6171Q.

## FAA accident and incident reports

None matched to N6171Q.

## 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 N6171Q

The FAA can reassign an N-number once a registration is cancelled. These aircraft carried N6171Q before.

- [Cancelled 2005-02-03](https://openairdocs.org/deregistered/N6171Q-2005-02-03): North American SNJ-4, S/N 88-13509. Exported to South Africa. Owner: [Central Virginia Aviation Inc](https://openairdocs.org/faa-owner/CENTRAL%20VIRGINIA%20AVIATION%20INC), [Petersburg, VA](https://openairdocs.org/faa-place/VA/Petersburg)
- [Cancelled 1985-04-25](https://openairdocs.org/deregistered/N6171Q-1985-04-25): Cessna 152, S/N 152-85182. Owner: [Martin Joe D](https://openairdocs.org/faa-owner/MARTIN%20JOE%20D), [Boonsboro, MD](https://openairdocs.org/faa-place/MD/Boonsboro)

## Related

- Other Gannon Philip J CHALLENGER II aircraft: https://openairdocs.org/model/gannon-philip-j-challenger-ii/aircraft.md
- The Rotax 503ULDCDI engine: https://openairdocs.org/engine/rotax-503uldcdi.md

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