# N6124A: 1992 Quad City Ultralight Acft CHALLENGER I

- Status: Valid registration
- Airframe: [Quad City Ultralight Acft CHALLENGER I](https://openairdocs.org/model/quad-city-ultralight-acft-challenger-i) (registry code 05901S5, 1 seats)
- Engine: [Rotax 503 series](https://openairdocs.org/engine/rotax-503-series) (registry code 55564)
- Serial number: CHCW 0292 148
- Year built: 1992
- Type: Fixed wing single engine
- Engine type: 2 cycle
- Airworthiness: Experimental, registered before 01/31/08
- Airworthiness date: October 7, 2007
- Certificate issued: May 1, 2023
- Expires: May 31, 2030
- Mode S code: A7F911
- Registered owner: [Milton Paul R](https://openairdocs.org/faa-owner/MILTON%20PAUL%20R)
- Location: [Temple, TX](https://openairdocs.org/faa-place/TX/Temple)
- Owner type: Individual
- Owner's area on the map: 31.1423° N, 97.3746° W: Placed by OpenAirDocs at the center of ZIP code 76504, within about 3 miles (OpenAirDocs). The owner's mailing address, not where the aircraft is based
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=6124A
- Page: https://openairdocs.org/aircraft/N6124A

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. 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 Ultralight Acft CHALLENGER I)

None in force.

### Matched by engine (Rotax 503 series)

None in force.

## Information bulletins (advisory)

None matched.

## NTSB investigations

None matched to N6124A.

## FAA accident and incident reports

None matched to N6124A.

## 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.

## Service difficulty reports on N6124A not matched to an aircraft (1)

They name N6124A, but no registry record covers the date, the aircraft registered then was built later, or the report describes another aircraft.

- [SDR 2003FA0000958](https://openairdocs.org/sdr/2003FA0000958), Sep 22, 2003: CLUTCH. BROKEN. AIR CONDITIONING COMPRESSOR CLUTCH ASSY HAD FAILED AFTER 58.0 HOURS OF AIRCRAFT OPERATION. APPEARS THAT THE ELECTRIC CLUTCH ASSY HAD BEEN ACTIVATED CONTINOUSLY 

## STCs that may be installed (OpenAirDocs)

None matched to this aircraft's models.

## Earlier aircraft with N6124A

The FAA can reassign an N-number once a registration is cancelled. These aircraft carried N6124A before.

- [Cancelled 2004-12-09](https://openairdocs.org/deregistered/N6124A-2004-12-09): Cessna 172S, S/N 172S9676, built 2004. Exported to Germany. Owner: [Atlantic Ferry Service Inc](https://openairdocs.org/faa-owner/ATLANTIC%20FERRY%20SERVICE%20INC), [Waterloo, IA](https://openairdocs.org/faa-place/IA/Waterloo)
- [Cancelled 1974-01-16](https://openairdocs.org/deregistered/N6124A-1974-01-16): Lockheed 188A, S/N 188A-1102. Exported to Argentina. Owner: [Mcculloch Intl Airlines](https://openairdocs.org/faa-owner/MCCULLOCH%20INTL%20AIRLINES), [Long Beach, CA](https://openairdocs.org/faa-place/CA/Long%20Beach)

## Related

- Other Quad City Ultralight Acft CHALLENGER I aircraft: https://openairdocs.org/model/quad-city-ultralight-acft-challenger-i/aircraft.md
- The Rotax 503 series engine: https://openairdocs.org/engine/rotax-503-series.md

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