# N81BZ: 2026 Koval Jeffrey Randall SLING TSI

- Status: Valid registration
- Airframe: [Koval Jeffrey Randall SLING TSI](https://openairdocs.org/model/koval-jeffrey-randall-sling-tsi) (registry code 056429G, 4 seats)
- Engine: [Rotax 916 1S3 A](https://openairdocs.org/engine/rotax-916-1s3-a) (registry code 55625)
- Serial number: 595SK
- Year built: 2026
- Type: Fixed wing single engine
- Engine type: Reciprocating
- Kit: Airplane Factory Inc SLING TSI
- Airworthiness: Experimental, amateur built
- Airworthiness date: January 9, 2026
- Certificate issued: July 12, 2025
- Expires: July 31, 2032
- Mode S code: AB0734
- Registered owner: [Koval Jeffrey R](https://openairdocs.org/faa-owner/KOVAL%20JEFFREY%20R)
- Location: [Lees Summit, MO](https://openairdocs.org/faa-place/MO/Lees%20Summit)
- Owner type: Individual
- Owner's area on the map: 38.8992° N, 94.2724° W: Placed by OpenAirDocs at the center of ZIP code 64086, within about 3 miles (OpenAirDocs). The owner's mailing address, not where the aircraft is based
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=81BZ
- Page: https://openairdocs.org/aircraft/N81BZ

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 (Koval Jeffrey Randall SLING TSI)

None in force.

### Matched by engine (Rotax 916 1S3 A)

None in force.

## Information bulletins (advisory)

None matched.

## NTSB investigations

None matched to N81BZ.

## FAA accident and incident reports

None matched to N81BZ.

## 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 N81BZ

The FAA can reassign an N-number once a registration is cancelled. These aircraft carried N81BZ before.

- [Cancelled 2013-06-07](https://openairdocs.org/deregistered/N81BZ-2013-06-07): Raven S55A, S/N S55A-744, built 1981. Registration expired, pending cancellation. Owner: [Sallised Ltd](https://openairdocs.org/faa-owner/SALLISED%20LTD), [Rochester, MI](https://openairdocs.org/faa-place/MI/Rochester)

## Related

- Other Koval Jeffrey Randall SLING TSI aircraft: https://openairdocs.org/model/koval-jeffrey-randall-sling-tsi/aircraft.md
- The Rotax 916 1S3 A engine: https://openairdocs.org/engine/rotax-916-1s3-a.md

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