# N205JR: 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 912 IS series](https://openairdocs.org/engine/rotax-912-is-series) (registry code 55593)
- Data sheets: [TCDS E00051EN](https://openairdocs.org/tcds/E00051EN) (BRP-Rotax GmbH & Co KG) (OpenAirDocs)
- Serial number: 0099
- Type: Fixed wing single engine
- Engine type: 4 cycle
- Airworthiness: Light sport, airplane
- Airworthiness date: July 20, 2017
- Certificate issued: October 18, 2021
- Expires: October 31, 2028
- Mode S code: A1A56E
- Registered owner: [Salt Meadow LLC](https://openairdocs.org/faa-owner/SALT%20MEADOW%20LLC)
- Location: [Middletown, DE](https://openairdocs.org/faa-place/DE/Middletown)
- Owner type: LLC
- Owner's area on the map: 39.4944° N, 75.6775° W: Placed by OpenAirDocs at the center of ZIP code 19709, within about 5 miles (OpenAirDocs). The owner's mailing address, not where the aircraft is based
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=205JR
- Page: https://openairdocs.org/aircraft/N205JR

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. The registry lists only the engine series, so ADs for every Rotax 912 IS model are included.

## ADs that may apply (OpenAirDocs): 3 in force

### Matched by airframe (Tomark Aero CZ Sro VIPER SD-4)

None in force.

### Matched by engine (Rotax 912 IS series)

- [AD 2026-16-11](https://openairdocs.org/ad/2026-16-11): Reciprocating Engine Front Section · BRP-Rotax 912 F2, 912 F3, 912 F4 and 16 more. Effective Aug 28, 2026
- [AD 2025-15-03](https://openairdocs.org/ad/2025-15-03): Reciprocating Engine Oil System · BRP-Rotax 912 iSc2 Sport, 912 iSc3 Sport, 915 iSc2 C24 and 1 more. Effective Aug 6, 2025
- [AD 2023-17-13](https://openairdocs.org/ad/2023-17-13): Reciprocating Engine Front Section · BRP-Rotax 912 F2, 912 F3, 912 F4 and 16 more. Effective Sep 20, 2023

### Historical (superseded or no longer in force)

- [AD 2025-07-02](https://openairdocs.org/ad/2025-07-02) (historical): Reciprocating Engine Oil System · BRP-Rotax 912 iSc2 Sport, 912 iSc3 Sport, 915 iSc2 C24 and 1 more. Effective Apr 21, 2025

## Information bulletins (advisory)

None matched.

## NTSB investigations

None matched to N205JR.

## FAA accident and incident reports

None matched to N205JR.

## 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 Tomark Aero CZ Sro VIPER SD-4 aircraft: https://openairdocs.org/model/tomark-aero-cz-sro-viper-sd-4/aircraft.md
- The Rotax 912 IS series engine: https://openairdocs.org/engine/rotax-912-is-series.md

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