# N503J: 2010 Janota James T CHALLENGER II, registration cancelled 2018-06-08

- Type: Cancelled registration (FAA registry, deregistered aircraft)
- Cancelled: June 8, 2018
- Status when cancelled: Registration expired, pending cancellation
- Airframe: [Janota James T CHALLENGER II](https://openairdocs.org/model/janota-james-t-challenger-ii) (registry code 05627C4)
- Engine: [Rotax 503 series](https://openairdocs.org/engine/rotax-503-series) (registry code 55564)
- Serial number: CH2-0405-2616
- Year built: 2010
- Type of aircraft: Fixed wing single engine
- Engine type: 2 cycle
- Kit: Quad City Ultralight Acft Corp CHALLENGER II
- Airworthiness: Experimental, amateur built
- Airworthiness date: July 22, 2010
- Certificate issued: August 14, 2008
- Last registry action: August 13, 2014
- Mode S code: A645DD
- Owner when cancelled: [Janota James T](https://openairdocs.org/faa-owner/JANOTA%20JAMES%20T)
- Location: [Chetek, WI](https://openairdocs.org/faa-place/WI/Chetek)
- Owner type: Individual
- Owner's area on the map: 45.3079° N, 91.6378° W: Placed by OpenAirDocs at the center of ZIP code 54728, within about 6 miles (OpenAirDocs). The owner's mailing address, not where the aircraft was based
- The mark today: https://openairdocs.org/aircraft/N503J
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=503J
- Page: https://openairdocs.org/deregistered/N503J-2018-06-08

From the FAA registry file of October 29, 2026, cancelled registrations. Owners' street addresses are left out. The Mode S code belongs to the N-number, not the airframe.

ADs and bulletins for the Janota James T CHALLENGER II: https://openairdocs.org/model/janota-james-t-challenger-ii.md

## Other aircraft with N503J

- [Cancelled 1975-05-08](https://openairdocs.org/deregistered/N503J-1975-05-08): Beech E18S, S/N BA-64. Owner: [Van Dusen Acceptance Corporation](https://openairdocs.org/faa-owner/VAN%20DUSEN%20ACCEPTANCE%20CORPORATION), [Minneapolis, MN](https://openairdocs.org/faa-place/MN/Minneapolis)

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