# N256CM: 2014 Christopher J Madsen SONEX

- Status: Valid registration
- Airframe: [Christopher J Madsen SONEX](https://openairdocs.org/model/christopher-j-madsen-sonex) (registry code 056327B, 2 seats)
- Engine: [Aerovee 2180](https://openairdocs.org/engine/aerovee-2180) (registry code 01400)
- Serial number: 1485
- Year built: 2014
- Type: Fixed wing single engine
- Engine type: Reciprocating
- Kit: Sonex Aircraft LLC SONEX
- Airworthiness: Experimental, amateur built
- Airworthiness date: January 28, 2020
- Certificate issued: December 11, 2013
- Expires: December 31, 2029
- Mode S code: A26E06
- Registered owner: [Madsen Christopher J](https://openairdocs.org/faa-owner/MADSEN%20CHRISTOPHER%20J)
- Location: [Huntsville, AL](https://openairdocs.org/faa-place/AL/Huntsville)
- Owner type: Individual
- Owner's area on the map: 34.8030° N, 86.6035° W: Placed by OpenAirDocs at the center of ZIP code 35810, within about 3 miles (OpenAirDocs). The owner's mailing address, not where the aircraft is based
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=256CM
- Page: https://openairdocs.org/aircraft/N256CM

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 (Christopher J Madsen SONEX)

None in force.

### Matched by engine (Aerovee 2180)

None in force.

## Information bulletins (advisory)

None matched.

## NTSB investigations

None matched to N256CM.

## FAA accident and incident reports

None matched to N256CM.

## 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 Christopher J Madsen SONEX aircraft: https://openairdocs.org/model/christopher-j-madsen-sonex/aircraft.md
- The Aerovee 2180 engine: https://openairdocs.org/engine/aerovee-2180.md

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