# N4433H: 1996 Quad City Ultralight Acft CHALLENGER II

- Status: Valid registration
- Airframe: [Quad City Ultralight Acft CHALLENGER II](https://openairdocs.org/model/quad-city-ultralight-acft-challenger-ii) (registry code 059010Q, 2 seats)
- Engine: [Rotax 503 DCDI](https://openairdocs.org/engine/rotax-503-dcdi) (registry code 55566)
- Serial number: 121260
- Year built: 1996
- Type: Fixed wing single engine
- Engine type: 2 cycle
- Airworthiness: Experimental, registered before 01/31/08
- Airworthiness date: January 15, 2008
- Certificate issued: September 24, 2014
- Expires: September 30, 2027
- Mode S code: A5588B
- Registered owner: [Uhlry Jay Clark](https://openairdocs.org/faa-owner/UHLRY%20JAY%20CLARK)
- Location: [Gladstone, OR](https://openairdocs.org/faa-place/OR/Gladstone)
- Owner type: Individual
- Owner's area on the map: 45.3856° N, 122.5928° W: Placed by OpenAirDocs at the center of ZIP code 97027, within about a mile (OpenAirDocs). The owner's mailing address, not where the aircraft is based
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=4433H
- Page: https://openairdocs.org/aircraft/N4433H

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 Ultralight Acft CHALLENGER II)

None in force.

### Matched by engine (Rotax 503 DCDI)

None in force.

## Information bulletins (advisory)

None matched.

## NTSB investigations

None matched to N4433H.

## FAA accident and incident reports

None matched to N4433H.

## 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 N4433H

The FAA can reassign an N-number once a registration is cancelled. These aircraft carried N4433H before.

- [Cancelled 1965-05-20](https://openairdocs.org/deregistered/N4433H-1965-05-20): Piper PA-15, S/N 15-219, built 1948. Owner: [Knitig Albert F](https://openairdocs.org/faa-owner/KNITIG%20ALBERT%20F), [Selden, KS](https://openairdocs.org/faa-place/KS/Selden)

## Related

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

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