Type Record · As of May 3, 2026
AIRPLANE FACTORY SLING 4 TSI
Fixed Wing Single Engine · ROTAX 915 IS
Registered
14
Year Range
2018–2025
NTSB Events
1
Airworthiness Directives
0
Aircraft Resources
01 / Distribution
Where the fleet lives and was built
Counts of currently-registered AIRPLANE FACTORY SLING 4 TSI aircraft by US state and decade of manufacture, sourced from the FAA Aircraft Registry.
By State (top 10)
- CA 28.6% 4
- TX 7.1% 1
- NV 7.1% 1
- MA 7.1% 1
- FL 7.1% 1
- UT 7.1% 1
- OR 7.1% 1
- VA 7.1% 1
- WA 7.1% 1
- AK 7.1% 1
+1 more states
By Decade of Manufacture
- 2010s 7.1% 1
- 2020s 71.4% 10
- Unknown 21.4% 3
02 / NTSB Records
Events involving AIRPLANE FACTORY SLING 4 TSI aircraft
1 event(s) on file. Showing the most recent 1.
-
Sep 25, 2023
N135WTSan Pedro, California Serious
NTSB Docket →
03 / Airworthiness Directives
FAA directives applicable to AIRPLANE FACTORY SLING 4 TSI
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 AIRPLANE FACTORY SLING 4 TSI
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 14 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 |
|---|---|---|---|---|
| N106SK | CA | 2024 | · | Look up ↗ |
| N121C | CA | 2020 | · | Look up ↗ |
| N135WT | CA | 2018 | ● | Look up ↗ |
| N234SL | TX | 2020 | · | Look up ↗ |
| N387AW | NV | 2021 | · | Look up ↗ |
| N401KM | MA | 2024 | · | Look up ↗ |
| N516LB | FL | — | · | Look up ↗ |
| N540MC | UT | 2023 | · | Look up ↗ |
| N577WN | OR | 2021 | · | Look up ↗ |
| N681SM | VA | 2025 | · | Look up ↗ |
| N828BW | WA | — | · | Look up ↗ |
| N898BK | AK | — | · | Look up ↗ |
| N922JP | CA | 2024 | · | Look up ↗ |
| N991AP | NH | 2021 | · | 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
Partial
We render counts and lists as the agency publishes them. Read the methodology →