# N438MD: 2026 Pensenstadler Mark A STOL CH 750SD

- Status: Valid registration
- Airframe: [Pensenstadler Mark A STOL CH 750SD](https://openairdocs.org/model/pensenstadler-mark-a-stol-ch-750sd) (registry code 05643MA, 3 seats)
- Engine: [Amateur-built UNKNOWN ENG](https://openairdocs.org/engine/amateur-built-unknown-eng) (registry code 99999)
- Serial number: CH750-11246
- Year built: 2026
- Type: Fixed wing single engine
- Engine type: Reciprocating
- Kit: Zenith Aircraft Co STOL CH 750 SD
- Airworthiness: Experimental, amateur built
- Airworthiness date: February 21, 2026
- Certificate issued: February 5, 2026
- Expires: February 28, 2033
- Mode S code: A541ED
- Registered owner: [Pensenstadler Mark A](https://openairdocs.org/faa-owner/PENSENSTADLER%20MARK%20A)
- Location: [Linden, MI](https://openairdocs.org/faa-place/MI/Linden)
- Owner type: Individual
- Owner's area on the map: 42.8060° N, 83.8160° W: Placed by OpenAirDocs at the center of ZIP code 48451, 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=438MD
- Page: https://openairdocs.org/aircraft/N438MD

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 (Pensenstadler Mark A STOL CH 750SD)

None in force.

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

None in force.

## Information bulletins (advisory)

None matched.

## NTSB investigations

None matched to N438MD.

## FAA accident and incident reports

None matched to N438MD.

## 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 Pensenstadler Mark A STOL CH 750SD aircraft: https://openairdocs.org/model/pensenstadler-mark-a-stol-ch-750sd/aircraft.md
- The Amateur-built UNKNOWN ENG engine: https://openairdocs.org/engine/amateur-built-unknown-eng.md

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