# N535PD: 2006 Duff Philip T SONEX

- Status: Valid registration
- Airframe: [Duff Philip T SONEX](https://openairdocs.org/model/duff-philip-t-sonex) (registry code 05621MV, 2 seats)
- Engine: [Aerovee 2180](https://openairdocs.org/engine/aerovee-2180) (registry code 01400)
- Serial number: 535
- Year built: 2006
- Type: Fixed wing single engine
- Engine type: 4 cycle
- Kit: Sonex Aircraft LLC SONEX
- Airworthiness: Experimental, amateur built
- Airworthiness date: March 13, 2007
- Certificate issued: October 19, 2023
- Expires: October 31, 2030
- Mode S code: A6C449
- Registered owners: [Poland Matthew K](https://openairdocs.org/faa-owner/POLAND%20MATTHEW%20K), [Poland Maryah L](https://openairdocs.org/faa-owner/POLAND%20MARYAH%20L)
- Location: [Butler, MO](https://openairdocs.org/faa-place/MO/Butler)
- Owner type: Co-owned
- Owner's area on the map: 38.2560° N, 94.2838° W: Placed by OpenAirDocs at the center of ZIP code 64730, within about 10 miles (OpenAirDocs). The owner's mailing address, not where the aircraft is based
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=535PD
- Page: https://openairdocs.org/aircraft/N535PD

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 (Duff Philip T SONEX)

None in force.

### Matched by engine (Aerovee 2180)

None in force.

## Information bulletins (advisory)

None matched.

## NTSB investigations

None matched to N535PD.

## FAA accident and incident reports

None matched to N535PD.

## 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 Duff Philip T SONEX aircraft: https://openairdocs.org/model/duff-philip-t-sonex/aircraft.md
- The Aerovee 2180 engine: https://openairdocs.org/engine/aerovee-2180.md

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