# N311EA: 2017 Tomark Aero CZ Sro VIPER SD-4

- Status: Valid registration
- Airframe: [Tomark Aero CZ Sro VIPER SD-4](https://openairdocs.org/model/tomark-aero-cz-sro-viper-sd-4) (registry code 060007X, 2 seats)
- Engine: [Rotax 914ULS](https://openairdocs.org/engine/rotax-914uls) (registry code 55552)
- Serial number: 0100
- Year built: 2017
- Type: Fixed wing single engine
- Engine type: 4 cycle
- Airworthiness: Light sport, airplane
- Airworthiness date: July 20, 2017
- Certificate issued: February 26, 2020
- Expires: February 28, 2030
- Mode S code: A34AED
- Registered owner: [Gibson Brock E](https://openairdocs.org/faa-owner/GIBSON%20BROCK%20E)
- Location: [Vancouver, WA](https://openairdocs.org/faa-place/WA/Vancouver)
- Owner type: Individual
- Owner's area on the map: 45.6387° N, 122.6615° W: Placed by OpenAirDocs: center of Vancouver, WA, within about 4 miles (OpenAirDocs). The owner's mailing address, not where the aircraft is based
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=311EA
- Page: https://openairdocs.org/aircraft/N311EA

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 (Tomark Aero CZ Sro VIPER SD-4)

None in force.

### Matched by engine (Rotax 914ULS)

None in force.

## Information bulletins (advisory)

None matched.

## NTSB investigations

None matched to N311EA.

## FAA accident and incident reports

None matched to N311EA.

## 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 N311EA

The FAA can reassign an N-number once a registration is cancelled. These aircraft carried N311EA before.

- [Cancelled 2004-02-23](https://openairdocs.org/deregistered/N311EA-2004-02-23): Lockheed L-1011-385-1, S/N 193A-1012, built 1972. Exported to Thailand. Owner: [Arena Aviation Inc](https://openairdocs.org/faa-owner/ARENA%20AVIATION%20INC), [Las Vegas, NV](https://openairdocs.org/faa-place/NV/Las%20Vegas)

## Related

- Other Tomark Aero CZ Sro VIPER SD-4 aircraft: https://openairdocs.org/model/tomark-aero-cz-sro-viper-sd-4/aircraft.md
- The Rotax 914ULS engine: https://openairdocs.org/engine/rotax-914uls.md

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