# N646MA: 2005 Flight Design CTSW

- Status: Valid registration
- Airframe: [Flight Design CTSW](https://openairdocs.org/model/flight-design-ctsw) (registry code 0600001, 2 seats)
- Engine: [Rotax SEE BOMBADIER](https://openairdocs.org/engine/rotax-see-bombadier) (registry code 55555)
- Serial number: 05-11-07
- Year built: 2005
- Type: Fixed wing single engine
- Engine type: 4 cycle
- Airworthiness: Light sport, airplane
- Airworthiness date: January 12, 2006
- Certificate issued: January 9, 2024
- Expires: January 31, 2031
- Mode S code: A87C99
- Registered owner: [Ken Graham Phd Inc](https://openairdocs.org/faa-owner/KEN%20GRAHAM%20PHD%20INC)
- Location: [Sioux Falls, SD](https://openairdocs.org/faa-place/SD/Sioux%20Falls)
- Owner type: Corporation
- Owner's area on the map: 43.5444° N, 96.6378° W: Placed by OpenAirDocs at the center of ZIP code 57110, 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=646MA
- Page: https://openairdocs.org/aircraft/N646MA

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 (Flight Design CTSW)

None in force.

### Matched by engine (Rotax SEE BOMBADIER)

None in force.

## Information bulletins (advisory)

None matched.

## NTSB investigations (1)

From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date, checked against the reported serial number, make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

- [NTSB CEN25LA238](https://openairdocs.org/ntsb/CEN25LA238), Jul 5, 2025: Flight Design Ctsw (N646MA), Joliet, IL, substantial damage. Probable cause: The pilot’s failure to maintain directional control during the crosswind landing.

## FAA accident and incident reports (1)

From the FAA Accident/Incident Data System. Reports are matched to registry aircraft by N-number and event date, checked against the reported make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

- [Accident 20250705010249A](https://openairdocs.org/incident/20250705010249A), Jul 5, 2025: Flight Design Gmbh CTSW (N646MA), Joliet, IL, Substantial damage. On July 05, 2025, the pilot in command (PIC) landed the aircraft on runway 31 at Joliet Regional Airport (kjot). A gust of air pushed the aircraft to the left…

## 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.

## Earlier aircraft with N646MA

The FAA can reassign an N-number once a registration is cancelled. These aircraft carried N646MA before.

- [Cancelled 1980-10-02](https://openairdocs.org/deregistered/N646MA-1980-10-02): Piper PA-23-250, S/N 27-3255. Owner: [Garden State Aviation Inc](https://openairdocs.org/faa-owner/GARDEN%20STATE%20AVIATION%20INC), [Farmington, NJ](https://openairdocs.org/faa-place/NJ/Farmington)

## Related

- Other Flight Design CTSW aircraft: https://openairdocs.org/model/flight-design-ctsw/aircraft.md
- The Rotax SEE BOMBADIER engine: https://openairdocs.org/engine/rotax-see-bombadier.md

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