# N440SX: 2006 Brock Billy E SONEX

- Status: Valid registration
- Airframe: [Brock Billy E SONEX](https://openairdocs.org/model/brock-billy-e-sonex) (registry code 059008R, 2 seats)
- Engine: [Amateur-built UNKNOWN ENG](https://openairdocs.org/engine/amateur-built-unknown-eng) (registry code 99999)
- Serial number: 440
- Year built: 2006
- Type: Fixed wing single engine
- Engine type: Reciprocating
- Airworthiness: Experimental, amateur built
- Airworthiness date: August 15, 2006
- Certificate issued: February 6, 2021
- Expires: February 29, 2028
- Mode S code: A54C43
- Registered owner: [Eskey Charles N III](https://openairdocs.org/faa-owner/ESKEY%20CHARLES%20N%20III)
- Location: [Danville, VA](https://openairdocs.org/faa-place/VA/Danville)
- Owner type: Individual
- Owner's area on the map: 36.6345° N, 79.4268° W: Placed by OpenAirDocs at the center of ZIP code 24540, within about 5 miles (OpenAirDocs). The owner's mailing address, not where the aircraft is based
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=440SX
- Page: https://openairdocs.org/aircraft/N440SX

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 (Brock Billy E SONEX)

None in force.

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

None in force.

## Information bulletins (advisory)

None matched.

## NTSB investigations

None matched to N440SX.

## FAA accident and incident reports

None matched to N440SX.

## 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 Brock Billy E SONEX aircraft: https://openairdocs.org/model/brock-billy-e-sonex/aircraft.md
- The Amateur-built UNKNOWN ENG engine: https://openairdocs.org/engine/amateur-built-unknown-eng.md

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