# N823JH: 2009 Holmgreen John B SONEX

- Status: Valid registration
- Airframe: [Holmgreen John B SONEX](https://openairdocs.org/model/holmgreen-john-b-sonex) (registry code 056281T, 2 seats)
- Engine: [Jabiru 3300](https://openairdocs.org/engine/jabiru-3300) (registry code 34802)
- Serial number: 1255
- Year built: 2009
- Type: Fixed wing single engine
- Engine type: Reciprocating
- Kit: Sonex Aircraft LLC SONEX
- Airworthiness: Experimental, amateur built
- Airworthiness date: September 28, 2009
- Certificate issued: August 24, 2009
- Expires: January 31, 2028
- Mode S code: AB3CD0
- Registered owner: [Holmgreen John B](https://openairdocs.org/faa-owner/HOLMGREEN%20JOHN%20B)
- Location: [Osseo, WI](https://openairdocs.org/faa-place/WI/Osseo)
- Owner type: Individual
- Owner's area on the map: 44.5579° N, 91.2165° W: Placed by OpenAirDocs at the center of ZIP code 54758, within about 7 miles (OpenAirDocs). The owner's mailing address, not where the aircraft is based
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=823JH
- Page: https://openairdocs.org/aircraft/N823JH

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 (Holmgreen John B SONEX)

None in force.

### Matched by engine (Jabiru 3300)

None in force.

## Information bulletins (advisory)

None matched.

## NTSB investigations

None matched to N823JH.

## FAA accident and incident reports

None matched to N823JH.

## 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 Holmgreen John B SONEX aircraft: https://openairdocs.org/model/holmgreen-john-b-sonex/aircraft.md
- The Jabiru 3300 engine: https://openairdocs.org/engine/jabiru-3300.md

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