# N6964R: Quad City Ultralights CHALLENGER II

- Status: Valid registration
- Airframe: [Quad City Ultralights CHALLENGER II](https://openairdocs.org/model/quad-city-ultralights-challenger-ii) (registry code 05901QS, 2 seats)
- Engine: [Rotax 503 DCDI](https://openairdocs.org/engine/rotax-503-dcdi) (registry code 55566)
- Serial number: CH2-0695 W 1358
- Type: Fixed wing single engine
- Engine type: 2 cycle
- Airworthiness: Experimental, registered before 01/31/08
- Airworthiness date: November 29, 2007
- Certificate issued: December 9, 2021
- Expires: December 31, 2028
- Mode S code: A943F4
- Registered owner: [Roberts Rick Roy](https://openairdocs.org/faa-owner/ROBERTS%20RICK%20ROY)
- Location: [Lovelady, TX](https://openairdocs.org/faa-place/TX/Lovelady)
- Owner type: Individual
- Owner's area on the map: 31.0924° N, 95.4999° W: Placed by OpenAirDocs at the center of ZIP code 75851, within about 9 miles (OpenAirDocs). The owner's mailing address, not where the aircraft is based
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=6964R
- Page: https://openairdocs.org/aircraft/N6964R

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 (Quad City Ultralights CHALLENGER II)

None in force.

### Matched by engine (Rotax 503 DCDI)

None in force.

## Information bulletins (advisory)

None matched.

## NTSB investigations

None matched to N6964R.

## FAA accident and incident reports

None matched to N6964R.

## 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 N6964R

The FAA can reassign an N-number once a registration is cancelled. These aircraft carried N6964R before.

- [Cancelled 1969-11-24](https://openairdocs.org/deregistered/N6964R-1969-11-24): Sikorsky S-64E, S/N 64059, built 1968. Owner: [Sikorsky Aircraft Division Of United Aircraft Corp](https://openairdocs.org/faa-owner/SIKORSKY%20AIRCRAFT%20DIVISION%20OF%20UNITED%20AIRCRAFT%20CORP), [Stratford, CT](https://openairdocs.org/faa-place/CT/Stratford)

## Related

- Other Quad City Ultralights CHALLENGER II aircraft: https://openairdocs.org/model/quad-city-ultralights-challenger-ii/aircraft.md
- The Rotax 503 DCDI engine: https://openairdocs.org/engine/rotax-503-dcdi.md

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