# N241HT: 1993 Quad City CHALLENGER 2

- Status: Valid registration
- Airframe: [Quad City CHALLENGER 2](https://openairdocs.org/model/quad-city-challenger-2) (registry code 05904HC, 2 seats)
- Engine: [Rotax 503 series](https://openairdocs.org/engine/rotax-503-series) (registry code 55564)
- Serial number: 1981
- Year built: 1993
- Type: Fixed wing single engine
- Engine type: 2 cycle
- Airworthiness: Experimental, registered before 01/31/08
- Airworthiness date: January 5, 2008
- Certificate issued: March 26, 2010
- Expires: January 31, 2027
- Mode S code: A23477
- Registered owner: [Seip Raymond K](https://openairdocs.org/faa-owner/SEIP%20RAYMOND%20K)
- Location: [Fort Walton Beach, FL](https://openairdocs.org/faa-place/FL/Fort%20Walton%20Beach)
- Owner type: Individual
- Owner's area on the map: 30.4132° N, 86.5893° W: Placed by OpenAirDocs at the center of ZIP code 32548, within about 2 miles (OpenAirDocs). The owner's mailing address, not where the aircraft is based
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=241HT
- Page: https://openairdocs.org/aircraft/N241HT

From the FAA registry file of October 22, 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. The registry lists only the engine series, so ADs for every Rotax 503 model are included.

## ADs that may apply (OpenAirDocs): 0 in force

### Matched by airframe (Quad City CHALLENGER 2)

None in force.

### Matched by engine (Rotax 503 series)

None in force.

## Information bulletins (advisory)

None matched.

## NTSB investigations

None matched to N241HT.

## FAA accident and incident reports

None matched to N241HT.

## 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.

## Related

- Other Quad City CHALLENGER 2 aircraft: https://openairdocs.org/model/quad-city-challenger-2/aircraft.md
- The Rotax 503 series engine: https://openairdocs.org/engine/rotax-503-series.md

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