# N720RS: 2001 Gerlach Mark CHALLENGER II, registration cancelled 2021-10-02

- Type: Cancelled registration (FAA registry, deregistered aircraft)
- Cancelled: October 2, 2021
- Status when cancelled: Registration expired, pending cancellation
- Airframe: [Gerlach Mark CHALLENGER II](https://openairdocs.org/model/gerlach-mark-challenger-ii) (registry code 05604J2)
- Engine: [Amateur-built UNKNOWN ENG](https://openairdocs.org/engine/amateur-built-unknown-eng) (registry code 99999)
- Serial number: CH2-0197-1555
- Year built: 2001
- Type of aircraft: Fixed wing single engine
- Airworthiness: Experimental, amateur built
- Airworthiness date: October 4, 2001
- Certificate issued: September 21, 2001
- Last registry action: March 14, 2018
- Mode S code: A9A514
- Owner when cancelled: [Gerlach Mark D](https://openairdocs.org/faa-owner/GERLACH%20MARK%20D)
- 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 was based
- The mark today: https://openairdocs.org/aircraft/N720RS
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=720RS
- Page: https://openairdocs.org/deregistered/N720RS-2021-10-02

From the FAA registry file of November 5, 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 Gerlach Mark CHALLENGER II: https://openairdocs.org/model/gerlach-mark-challenger-ii.md

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