# N4ZE: Roberts Liona R ZENITH STOL CH 750

- Status: Valid registration
- Airframe: [Roberts Liona R ZENITH STOL CH 750](https://openairdocs.org/model/roberts-liona-r-zenith-stol-ch-750) (registry code 05630PG, 2 seats)
- Engine: [Amateur-built UNKNOWN ENG](https://openairdocs.org/engine/amateur-built-unknown-eng) (registry code 99999)
- Serial number: 75-7504
- Type: Fixed wing single engine
- Engine type: Reciprocating
- Kit: Zenith Aircraft Co STOL CH 750
- Airworthiness: Experimental, amateur built
- Airworthiness date: November 3, 2011
- Certificate issued: June 5, 2019
- Expires: June 30, 2029
- Mode S code: A4AA33
- Registered owner: [Keyes George E Jr](https://openairdocs.org/faa-owner/KEYES%20GEORGE%20E%20JR)
- Location: [Moab, UT](https://openairdocs.org/faa-place/UT/Moab)
- Owner type: Individual
- Owner's area on the map: 38.5177° N, 109.3852° W: Placed by OpenAirDocs at the center of ZIP code 84532, within about 22 miles (OpenAirDocs). The owner's mailing address, not where the aircraft is based
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=4ZE
- Page: https://openairdocs.org/aircraft/N4ZE

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 (Roberts Liona R ZENITH STOL CH 750)

None in force.

### Matched by engine (Amateur-built UNKNOWN ENG)

None in force.

## Information bulletins (advisory)

None matched.

## NTSB investigations

None matched to N4ZE.

## FAA accident and incident reports

None matched to N4ZE.

## 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 N4ZE

The FAA can reassign an N-number once a registration is cancelled. These aircraft carried N4ZE before.

- [Cancelled 2007-11-19](https://openairdocs.org/deregistered/N4ZE-2007-11-19): S C Aerostar S A YAK-52TW, S/N 0412509, built 2004. Exported to Australia. Owner: [Bear Air Corp](https://openairdocs.org/faa-owner/BEAR%20AIR%20CORP), [Poplar Grove, IL](https://openairdocs.org/faa-place/IL/Poplar%20Grove)
- [Cancelled 1994-08-03](https://openairdocs.org/deregistered/N4ZE-1994-08-03): Laughlin VARI-EZE, S/N 444. Triennial form not returned. Owner: [Laughlin Edward S](https://openairdocs.org/faa-owner/LAUGHLIN%20EDWARD%20S), [San Jose, CA](https://openairdocs.org/faa-place/CA/San%20Jose)

## Related

- Other Roberts Liona R ZENITH STOL CH 750 aircraft: https://openairdocs.org/model/roberts-liona-r-zenith-stol-ch-750/aircraft.md
- The Amateur-built UNKNOWN ENG engine: https://openairdocs.org/engine/amateur-built-unknown-eng.md

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