# N3861Z: 2008 Grego C/Grego H CHALLENGER LSS

- Status: Valid registration
- Airframe: [Grego C/Grego H CHALLENGER LSS](https://openairdocs.org/model/grego-c-grego-h-challenger-lss) (registry code 05628RI, 2 seats)
- Engine: [Rotax 503 series](https://openairdocs.org/engine/rotax-503-series) (registry code 55564)
- Serial number: CH2-0107-LSS-0124
- Year built: 2008
- Type: Fixed wing single engine
- Engine type: 2 cycle
- Kit: Quad City Ultralight Acft Corp CHALLENGER II
- Airworthiness: Experimental, amateur built
- Airworthiness date: October 14, 2009
- Certificate issued: July 28, 2009
- Expires: October 31, 2027
- Mode S code: A47427
- Registered owner: [Grego Charles R](https://openairdocs.org/faa-owner/GREGO%20CHARLES%20R)
- Location: [Atlantic Mine, MI](https://openairdocs.org/faa-place/MI/Atlantic%20Mine)
- Owner type: Individual
- Owner's area on the map: 47.1101° N, 88.7077° W: Placed by OpenAirDocs at the center of ZIP code 49905, within about 5 miles (OpenAirDocs). The owner's mailing address, not where the aircraft is based
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=3861Z
- Page: https://openairdocs.org/aircraft/N3861Z

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 (Grego C/Grego H CHALLENGER LSS)

None in force.

### Matched by engine (Rotax 503 series)

None in force.

## Information bulletins (advisory)

None matched.

## NTSB investigations

None matched to N3861Z.

## FAA accident and incident reports

None matched to N3861Z.

## 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 N3861Z

The FAA can reassign an N-number once a registration is cancelled. These aircraft carried N3861Z before.

- [Cancelled 1962-01-26](https://openairdocs.org/deregistered/N3861Z-1962-01-26): Piper PA-18-150, S/N 18-7634, built 1960. Exported to Iran. Owner: [Riverside Air Service](https://openairdocs.org/faa-owner/RIVERSIDE%20AIR%20SERVICE), [Riverside, CA](https://openairdocs.org/faa-place/CA/Riverside)

## Related

- Other Grego C/Grego H CHALLENGER LSS aircraft: https://openairdocs.org/model/grego-c-grego-h-challenger-lss/aircraft.md
- The Rotax 503 series engine: https://openairdocs.org/engine/rotax-503-series.md

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