# N75656: 2005 Cosmos BISON

- Status: Valid registration
- Airframe: [Cosmos BISON](https://openairdocs.org/model/cosmos-bison) (registry code 05901K8, 2 seats)
- Engine: [Rotax 503 DCDI](https://openairdocs.org/engine/rotax-503-dcdi) (registry code 55566)
- Serial number: TTCB2
- Year built: 2005
- Type: Weight-shift-control
- Engine type: 2 cycle
- Airworthiness: Experimental, registered before 01/31/08
- Airworthiness date: January 21, 2008
- Mode S code: AA3379
- Registered owner: [Evolution Aircraft Inc](https://openairdocs.org/faa-owner/EVOLUTION%20AIRCRAFT%20INC)
- Location: [Zephyrhills, FL](https://openairdocs.org/faa-place/FL/Zephyrhills)
- Owner type: Corporation
- Owner's area on the map: 28.2358° N, 82.1776° W: Placed by OpenAirDocs at the center of ZIP code 33542, within about 2 miles (OpenAirDocs). The owner's mailing address, not where the aircraft is based
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=75656
- Page: https://openairdocs.org/aircraft/N75656

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 (Cosmos BISON)

None in force.

### Matched by engine (Rotax 503 DCDI)

None in force.

## Information bulletins (advisory)

None matched.

## NTSB investigations

None matched to N75656.

## FAA accident and incident reports

None matched to N75656.

## 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 N75656

The FAA can reassign an N-number once a registration is cancelled. These aircraft carried N75656 before.

- [Cancelled 1976-11-26](https://openairdocs.org/deregistered/N75656-1976-11-26): Cessna 172N, S/N 17267875. Exported to Canada. Owner: [Owen Parry Jr DBA Litchfield Aviation](https://openairdocs.org/faa-owner/OWEN%20PARRY%20JR%20DBA%20LITCHFIELD%20AVIATION), [Goodyear, AZ](https://openairdocs.org/faa-place/AZ/Goodyear)
- [Cancelled 1949-06-09](https://openairdocs.org/deregistered/N75656-1949-06-09): Boeing E75N1, S/N 75-8567, built 1943. Owner: [Searcy Flying Service](https://openairdocs.org/faa-owner/SEARCY%20FLYING%20SERVICE), [Searcy, AR](https://openairdocs.org/faa-place/AR/Searcy)

## Related

- Other Cosmos BISON aircraft: https://openairdocs.org/model/cosmos-bison/aircraft.md
- The Rotax 503 DCDI engine: https://openairdocs.org/engine/rotax-503-dcdi.md

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.