# N21ZU: Chapman Patrick L SLING TSI

- Status: Valid registration
- Airframe: [Chapman Patrick L SLING TSI](https://openairdocs.org/model/chapman-patrick-l-sling-tsi) (registry code 05643H0, 4 seats)
- Serial number: 242SK
- Type: Fixed wing single engine
- Engine type: Reciprocating
- Kit: Airplane Factory Inc SLING TSI
- Certificate issued: October 27, 2025
- Expires: October 31, 2032
- Mode S code: A1B97B
- Registered owner: [Chapman Patrick L](https://openairdocs.org/faa-owner/CHAPMAN%20PATRICK%20L)
- Location: [Broken Arrow, OK](https://openairdocs.org/faa-place/OK/Broken%20Arrow)
- Owner type: Individual
- Owner's area on the map: 36.0516° N, 95.8057° W: Placed by OpenAirDocs at the center of ZIP code 74012, 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=21ZU
- Page: https://openairdocs.org/aircraft/N21ZU

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 (Chapman Patrick L SLING TSI)

None in force.

## Information bulletins (advisory)

None matched.

## NTSB investigations

None matched to N21ZU.

## FAA accident and incident reports

None matched to N21ZU.

## 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 Chapman Patrick L SLING TSI aircraft: https://openairdocs.org/model/chapman-patrick-l-sling-tsi/aircraft.md

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