# N380ST: 2017 Byron Poppenhagen SONERAI II S

- Status: Valid registration
- Airframe: [Byron Poppenhagen SONERAI II S](https://openairdocs.org/model/byron-poppenhagen-sonerai-ii-s) (registry code 056355U, 1 seats)
- Engine: [Greatplain 2276GP](https://openairdocs.org/engine/greatplain-2276gp) (registry code 31502)
- Serial number: 1244
- Year built: 2017
- Type: Fixed wing single engine
- Engine type: 4 cycle
- Airworthiness: Experimental, amateur built
- Airworthiness date: July 10, 2017
- Certificate issued: June 7, 2023
- Expires: June 30, 2030
- Mode S code: A45CEC
- Registered owners: [Vallon Jeff](https://openairdocs.org/faa-owner/VALLON%20JEFF), [Hunt Sarah](https://openairdocs.org/faa-owner/HUNT%20SARAH)
- Location: [San Anselmo, CA](https://openairdocs.org/faa-place/CA/San%20Anselmo)
- Owner type: Co-owned
- Owner's area on the map: 37.9970° N, 122.5783° W: Placed by OpenAirDocs at the center of ZIP code 94960, within about a mile (OpenAirDocs). The owner's mailing address, not where the aircraft is based
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=380ST
- Page: https://openairdocs.org/aircraft/N380ST

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 (Byron Poppenhagen SONERAI II S)

None in force.

### Matched by engine (Greatplain 2276GP)

None in force.

## Information bulletins (advisory)

None matched.

## NTSB investigations

None matched to N380ST.

## FAA accident and incident reports

None matched to N380ST.

## 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 Byron Poppenhagen SONERAI II S aircraft: https://openairdocs.org/model/byron-poppenhagen-sonerai-ii-s/aircraft.md
- The Greatplain 2276GP engine: https://openairdocs.org/engine/greatplain-2276gp.md

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