The U.S. aircraft register, updated daily · Carbon Free Flight by 2050
Registered aircraft · FAA record as of October 2, 2026
N421SD

Karim Kanfoudi SLING TSI

N421SD is a Karim Kanfoudi SLING TSI, a fixed-wing airplane with one motor with a four-stroke engine. It has 4 seats. It is registered to an individual in Manhattan Beach, California. The registration is valid: it was issued on June 16, 2026 and expires on June 30, 2033. No airworthiness certificate is on file, which is normal for drones and for aircraft still being built or tested.

Aircraft

Maker
Karim Kanfoudi
Model
SLING TSI
Serial number
422SK
Type
Fixed-wing, single engine
Power
Four-cycle piston, 1 motor
Seats
4
Year built
Not given
Kit
AIRPLANE FACTORY INC SLING TSI
Transponder code
A500EA (octal 51200352)

Registration

Status
Valid registration
Certificate issued
June 16, 2026
Expires
June 30, 2033
Last FAA action
June 16, 2026
Airworthiness
None on file
FAA region
Western-Pacific
FAA record id
01550222

Owner as the FAA publishes it

Name
Kanfoudi Karim
Type
Individual
Address
2006 N Sepulveda Blvd Pmb 169
Manhattan Beach, CA 90266-2906

Owners can ask the FAA to withhold their name and address from public files. When they do, those fields are blank here as well. How that works.

Documents on file 0

No bills of sale, loans or other documents are indexed against this tail number.

Earlier use of this number 2

2017-10-31Cessna 421B · Registration expired, pending cancellation
2005-03-21Cessna 421B · Triennial registration form was mailed and has not been returned by the Post Office

Records check free · 3 to understand · 2 clear

The public federal record on N421SD, read the way a buyer, lender or insurer reads it: FAA registration, prior tail numbers keyed on the serial number, reuse of the tail number, recent registry filings, and the NTSB accident record under this and every earlier registration.

CLEARRegistration and identity

Valid registration to Kanfoudi Karim, an individual, certificate issued June 16, 2026, expires June 30, 2033. No fractional interest recorded. [1]

ATTENTIONAirworthiness certificate

No airworthiness certificate is on file. Usual for a newly registered aircraft, a project, or an aircraft that has not flown since a change of registration; ask for the certificate. [1]

CLEARPrior registrations of this airframe

No earlier tail number is recorded against serial 422SK for this model in the deregistered file. [2]

ATTENTIONTail number reuse

N421SD was previously assigned to 2 other aircraft: Cessna 421B (serial 421B0127, cancelled October 31, 2017); Cessna 421B (serial 421B0386, cancelled March 21, 2005). Histories keyed to the tail number alone can mix aircraft up; this check keys on the serial number. [2]

NOTERecent registry documents

No bills of sale, loans or releases have reached the registry in recent weeks. The index covers only recent filings; older liens are in the records file. [3]

ATTENTIONAccident and incident record

1 NTSB record under N421SD: Accident on December 2, 2004 at Apison, TN: fatal, destroyed (5 fatal). Details below. [4]

PENDINGTitle chain, liens and 337 forms

These live in the FAA aircraft records file (every document ever filed against the aircraft) and, for larger aircraft, the International Registry. Part of the full report.

PENDINGAirworthiness directives and utilization

AD compliance against the logbooks and flight-activity reconciliation are researched layers of the full report.

NTSB records 1

ATL05FA032Accident on December 2, 2004 at Apison, TN: fatal, destroyed (5 fatal).serial on NTSB record: 421BO386

Aircraft on the NTSB record: Cessna 421B · operated under 091

The pilot's improper identification of a partial loss of engine power on initial takeoff climb resulting in a collision with trees and the ground. A factor was a partial failure of the left engine starter adapter due to overload.

Search the NTSB's CAROL system for ATL05FA032 for the docket and final report. Open CAROL

CLEAR the source was checked and shows no adverse findingATTENTION a fact a buyer or lender should understand, often routineNOTE context onlyPENDING covered by the full report
  1. FAA Releasable Aircraft Database, master file, file of October 2, 2026. registry.faa.gov/
  2. FAA deregistered aircraft file (part of the same download), file of October 2, 2026. registry.faa.gov/
  3. FAA document index: registry documents received in recent weeks, file of October 2, 2026. registry.faa.gov/
  4. NTSB aviation accident database (CAROL), records through August 27, 2026. data.ntsb.gov/carol-main-public/basic-search

This automated check reads the public federal record. Nothing here is a legal opinion, an appraisal or a statement about the aircraft's condition; a CLEAR line is a statement about the searched record, not the aircraft.

Source: FAA Civil Aviation Registry, Releasable Aircraft Database, October 2, 2026. See this record on the FAA site · This record as data