# N421SD: Karim Kanfoudi SLING TSI

- Status: Valid registration
- Airframe: [Karim Kanfoudi SLING TSI](https://openairdocs.org/model/karim-kanfoudi-sling-tsi) (registry code 05643T9, 4 seats)
- Serial number: 422SK
- Type: Fixed wing single engine
- Engine type: 4 cycle
- Kit: Airplane Factory Inc SLING TSI
- Certificate issued: June 16, 2026
- Expires: June 30, 2033
- Mode S code: A500EA
- Registered owner: [Kanfoudi Karim](https://openairdocs.org/faa-owner/KANFOUDI%20KARIM)
- Location: [Manhattan Beach, CA](https://openairdocs.org/faa-place/CA/Manhattan%20Beach)
- Owner type: Individual
- Owner's area on the map: 33.8918° N, 118.4028° W: Placed by OpenAirDocs at the center of ZIP code 90266, within about a mile (OpenAirDocs). The owner's mailing address, not where the aircraft is based
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=421SD
- Page: https://openairdocs.org/aircraft/N421SD

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 (Karim Kanfoudi SLING TSI)

None in force.

## Information bulletins (advisory)

None matched.

## NTSB investigations

None matched to N421SD.

## FAA accident and incident reports

None matched to N421SD.

## 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 N421SD

The FAA can reassign an N-number once a registration is cancelled. These aircraft carried N421SD before.

- [Cancelled 2017-10-31](https://openairdocs.org/deregistered/N421SD-2017-10-31): Cessna 421B, S/N 421B0127, built 1971. Registration expired, pending cancellation. Owner: [S And D Aviation LLC](https://openairdocs.org/faa-owner/S%20AND%20D%20AVIATION%20LLC), [Columbus, MS](https://openairdocs.org/faa-place/MS/Columbus)
- [Cancelled 2005-03-21](https://openairdocs.org/deregistered/N421SD-2005-03-21): Cessna 421B, S/N 421B0386, built 1973. Triennial form not returned. Owner: [Georgia Cumberland Con Of Seventh D](https://openairdocs.org/faa-owner/GEORGIA%20CUMBERLAND%20CON%20OF%20SEVENTH%20D), [Calhoun, GA](https://openairdocs.org/faa-place/GA/Calhoun)

## Related

- Other Karim Kanfoudi SLING TSI aircraft: https://openairdocs.org/model/karim-kanfoudi-sling-tsi/aircraft.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.