# N31CZ: 2006 Hull Joseph A COZY-MK-4

- Status: Valid registration
- Airframe: [Hull Joseph A COZY-MK-4](https://openairdocs.org/model/hull-joseph-a-cozy-mk-4) (registry code 05619GU, 4 seats)
- Engine: [Amateur-built UNKNOWN ENG](https://openairdocs.org/engine/amateur-built-unknown-eng) (registry code 99999)
- Serial number: 0991
- Year built: 2006
- Type: Fixed wing single engine
- Engine type: Reciprocating
- Airworthiness: Experimental, amateur built
- Airworthiness date: January 20, 2006
- Certificate issued: December 11, 2018
- Expires: December 31, 2028
- Mode S code: A344C2
- Registered owner: [Heyman Edward R](https://openairdocs.org/faa-owner/HEYMAN%20EDWARD%20R)
- Location: [Everett, WA](https://openairdocs.org/faa-place/WA/Everett)
- Owner type: Individual
- Owner's area on the map: 47.9419° N, 122.2341° W: Placed by OpenAirDocs at the center of ZIP code 98203, 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=31CZ
- Page: https://openairdocs.org/aircraft/N31CZ

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 (Hull Joseph A COZY-MK-4)

None in force.

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

None in force.

## Information bulletins (advisory)

None matched.

## NTSB investigations

None matched to N31CZ.

## FAA accident and incident reports

None matched to N31CZ.

## 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 Hull Joseph A COZY-MK-4 aircraft: https://openairdocs.org/model/hull-joseph-a-cozy-mk-4/aircraft.md
- The Amateur-built UNKNOWN ENG engine: https://openairdocs.org/engine/amateur-built-unknown-eng.md

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