# N6048X: Mrzena Matthew D COSMOS BISON

- Status: Valid registration
- Airframe: [Mrzena Matthew D COSMOS BISON](https://openairdocs.org/model/mrzena-matthew-d-cosmos-bison) (registry code 05901MG, 2 seats)
- Engine: [Rotax 503 DCDI](https://openairdocs.org/engine/rotax-503-dcdi) (registry code 55566)
- Serial number: B21512
- Type: Weight-shift-control
- Engine type: 2 cycle
- Airworthiness: Experimental, registered before 01/31/08
- Airworthiness date: August 10, 2007
- Certificate issued: October 24, 2016
- Expires: October 31, 2029
- Mode S code: A7D9A1
- Registered owner: [Gilbert Kent G](https://openairdocs.org/faa-owner/GILBERT%20KENT%20G)
- Location: [Brookshire, TX](https://openairdocs.org/faa-place/TX/Brookshire)
- Owner type: Individual
- Owner's area on the map: 29.8331° N, 95.9869° W: Placed by OpenAirDocs at the center of ZIP code 77423, within about 7 miles (OpenAirDocs). The owner's mailing address, not where the aircraft is based
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=6048X
- Page: https://openairdocs.org/aircraft/N6048X

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 (Mrzena Matthew D COSMOS BISON)

None in force.

### Matched by engine (Rotax 503 DCDI)

None in force.

## Information bulletins (advisory)

None matched.

## NTSB investigations

None matched to N6048X.

## FAA accident and incident reports

None matched to N6048X.

## 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 N6048X

The FAA can reassign an N-number once a registration is cancelled. These aircraft carried N6048X before.

- [Cancelled 1989-01-23](https://openairdocs.org/deregistered/N6048X-1989-01-23): Mooney M20A, S/N 1639. N-number assigned, not yet registered

## Related

- Other Mrzena Matthew D COSMOS BISON aircraft: https://openairdocs.org/model/mrzena-matthew-d-cosmos-bison/aircraft.md
- The Rotax 503 DCDI engine: https://openairdocs.org/engine/rotax-503-dcdi.md

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