# N720BB: 2015 Tl-Ultralight S R O TL 2000 STING S4

- Status: Valid registration
- Airframe: [Tl-Ultralight S R O TL 2000 STING S4](https://openairdocs.org/model/tl-ultralight-s-r-o-tl-2000-sting-s4) (registry code 06001A1, 2 seats)
- Engine: [Rotax 912ULS series](https://openairdocs.org/engine/rotax-912uls-series) (registry code 55572)
- Serial number: 15 ST 438
- Year built: 2015
- Type: Fixed wing single engine
- Engine type: 4 cycle
- Airworthiness: Light sport, airplane
- Airworthiness date: November 6, 2015
- Certificate issued: January 4, 2016
- Expires: January 31, 2029
- Mode S code: A9A3A7
- Registered owner: [Bass Bill Jr](https://openairdocs.org/faa-owner/BASS%20BILL%20JR)
- Location: [Belton, TX](https://openairdocs.org/faa-place/TX/Belton)
- Owner type: Individual
- Owner's area on the map: 31.0570° N, 97.5030° W: Placed by OpenAirDocs at the center of ZIP code 76513, within about 6 miles (OpenAirDocs). The owner's mailing address, not where the aircraft is based
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=720BB
- Page: https://openairdocs.org/aircraft/N720BB

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 912ULS model are included.

## ADs that may apply (OpenAirDocs): 0 in force

### Matched by airframe (Tl-Ultralight S R O TL 2000 STING S4)

None in force.

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

None in force.

## Information bulletins (advisory)

None matched.

## NTSB investigations

None matched to N720BB.

## FAA accident and incident reports

None matched to N720BB.

## 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 Tl-Ultralight S R O TL 2000 STING S4 aircraft: https://openairdocs.org/model/tl-ultralight-s-r-o-tl-2000-sting-s4/aircraft.md
- The Rotax 912ULS series engine: https://openairdocs.org/engine/rotax-912uls-series.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.