Type Record · As of May 3, 2026
TOMARK AERO CZ SRO VIPER SD-4
Fixed Wing Single Engine · ROTAX 912 IS
Registered
18
Year Range
2009–2025
NTSB Events
3
Airworthiness Directives
0
Aircraft Resources
01 / Distribution
Where the fleet lives and was built
Counts of currently-registered TOMARK AERO CZ SRO VIPER SD-4 aircraft by US state and decade of manufacture, sourced from the FAA Aircraft Registry.
By State (top 10)
- FL 27.8% 5
- DE 16.7% 3
- MO 11.1% 2
- WY 11.1% 2
- OR 5.6% 1
- IL 5.6% 1
- CA 5.6% 1
- TX 5.6% 1
- CO 5.6% 1
- ID 5.6% 1
By Decade of Manufacture
- 2000s 5.6% 1
- 2010s 11.1% 2
- 2020s 77.8% 14
- Unknown 5.6% 1
02 / NTSB Records
Events involving TOMARK AERO CZ SRO VIPER SD-4 aircraft
3 event(s) on file. Showing the most recent 3.
-
Mar 10, 1987
N802EAJAMAICA, New York
NTSB Docket → -
Jan 17, 1986
N802EALOUDON COUNTY, Virginia
NTSB Docket → -
Aug 25, 1984
N411EAORLANDO, Florida
NTSB Docket →
03 / Airworthiness Directives
FAA directives applicable to TOMARK AERO CZ SRO VIPER SD-4
No matching airworthiness directives are on file for this make and model in the Federal Register.
04 / Regulations watching this type
Advisory Circulars and Federal Register activity for TOMARK AERO CZ SRO VIPER SD-4
Advisory Circulars
No ACs explicitly mention this type. Showing universal operating-rule ACs that apply to all aircraft.
Recent Federal Register activity
Latest rulemakings touching general operating rules (Part 91) and maintenance rules (Part 43).
- 2026-04-17 Settlement Policy for Small Unmanned Aircraft System (UAS) Cases FR ↗
- 2026-02-10 Normalizing Unmanned Aircraft Systems Beyond Visual Line of Sight Operations; Reopening of Comment Period; Denial of Extension FR ↗
- 2026-02-02 25-Hour Cockpit Voice Recorder (CVR) Requirement, New Aircraft Production FR ↗
- 2026-01-28 Normalizing Unmanned Aircraft Systems Beyond Visual Line of Sight Operations; Reopening of Comment Period FR ↗
- 2026-01-07 Requirements for Interference-Tolerant Radio Altimeter Systems FR ↗
05 / Aircraft of this type
All 18 registered N-numbers
Every tail currently on the FAA registry for this make/model. Click an N-number to query the FAA Aircraft Inquiry; rows flagged ● have NTSB events on file. Tails seeded with full TallyAero pages link directly.
| N-number | St | Year | NTSB | FAA |
|---|---|---|---|---|
| N205JR | DE | — | · | Look up ↗ |
| N311EA | OR | 2017 | · | Look up ↗ |
| N359EA | IL | 2022 | · | Look up ↗ |
| N374EA | MO | 2023 | · | Look up ↗ |
| N411EA | WY | 2023 | ● | Look up ↗ |
| N447EA | MO | 2023 | · | Look up ↗ |
| N450EA | FL | 2017 | · | Look up ↗ |
| N478EA | CA | 2023 | · | Look up ↗ |
| N485EA | DE | 2024 | · | Look up ↗ |
| N613TK | TX | 2009 | · | Look up ↗ |
| N802EA | FL | 2024 | ● | Look up ↗ |
| N814EA | CO | 2024 | · | Look up ↗ |
| N848EA | FL | 2025 | · | Look up ↗ |
| N854EA | DE | 2023 | · | Look up ↗ |
| N874EA | WY | 2025 | · | Look up ↗ |
| N875EA | ID | 2025 | · | Look up ↗ |
| N881EA | FL | 2025 | · | Look up ↗ |
| N973EA | FL | 2022 | · | Look up ↗ |
Source — FAA Aircraft Registry · click "Look up" to query the live registry record (owner, address, last airworthiness)
05 / Sources & Methodology
Every count traces back to a primary US-government source
- FAA Aircraft Registry →
Refreshed Apr 27, 2026
Available
- NTSB CAROL →
Refreshed Apr 27, 2026
Available
- Federal Register (FAA Airworthiness Directives) →
Refreshed Apr 27, 2026
Available
We render counts and lists as the agency publishes them. Read the methodology →