{"airworthiness_class":"","airworthiness_date":"","airworthiness_ops":"","category":"conventional","cert_issue_date":"2026-06-16","city":"MANHATTAN BEACH","country_code":"US","county_code":"037","cruise_speed_mph":null,"data_date":"2026-10-02","documents":[],"eng_mfr_mdl":"","engine_horsepower":null,"engine_maker":"","engine_model":"","engine_thrust_lb":null,"expiration_date":"2033-06-30","fractional_owner":0,"is_company":0,"is_electric":0,"is_unmanned_cert":0,"kind":"piston-singles","kit_mfr":"AIRPLANE FACTORY INC","kit_model":"SLING TSI","last_action_date":"2026-06-16","maker":"Karim Kanfoudi","maker_country":null,"maker_raw":"KARIM KANFOUDI","maker_segment":null,"mfr_mdl_code":"05643T9","mode_s_code":"51200352","mode_s_hex":"A500EA","model":"SLING TSI","n_number":"N421SD","name":"KANFOUDI KARIM","ntsb_checked":true,"ntsb_records":[{"city":"Apison","damage":"DEST","date":"2004-12-02","highest_injury":"FATL","ntsb_no":"ATL05FA032","probable_cause":"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.","registration":"N421SD","state":"TN","summary":"Accident on December 2, 2004 at Apison, TN: fatal, destroyed (5 fatal).","type":"ACC"}],"num_engines":1,"other_names":"","plain_english":"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.","records_check":[{"finding":"Valid registration to Kanfoudi Karim, an individual, certificate issued June 16, 2026, expires June 30, 2033. No fractional interest recorded.","item":"Registration and identity","source":1,"status":"CLEAR"},{"finding":"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.","item":"Airworthiness certificate","source":1,"status":"ATTENTION"},{"finding":"No earlier tail number is recorded against serial 422SK for this model in the deregistered file.","item":"Prior registrations of this airframe","source":2,"status":"CLEAR"},{"finding":"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.","item":"Tail number reuse","source":2,"status":"ATTENTION"},{"finding":"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.","item":"Recent registry documents","source":3,"status":"NOTE"},{"finding":"1 NTSB record under N421SD: Accident on December 2, 2004 at Apison, TN: fatal, destroyed (5 fatal). Details below.","item":"Accident and incident record","source":4,"status":"ATTENTION"},{"finding":"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.","item":"Title chain, liens and 337 forms","source":null,"status":"PENDING"},{"finding":"AD compliance against the logbooks and flight-activity reconciliation are researched layers of the full report.","item":"Airworthiness directives and utilization","source":null,"status":"PENDING"}],"records_check_sources":[{"n":1,"name":"FAA Releasable Aircraft Database, master file","url":"https://registry.faa.gov/"},{"n":2,"name":"FAA deregistered aircraft file (part of the same download)","url":"https://registry.faa.gov/"},{"n":3,"name":"FAA document index: registry documents received in recent weeks","url":"https://registry.faa.gov/"},{"n":4,"name":"NTSB aviation accident database (CAROL)","url":"https://data.ntsb.gov/carol-main-public/basic-search"}],"region":"Western-Pacific","region_code":"4","registrant_type":"Individual","registrant_type_code":"1","seats":4,"serial_number":"422SK","source":"FAA Civil Aviation Registry, Releasable Aircraft Database","state":"CA","status":"Valid registration","status_code":"V","status_short":"Valid","street":"2006 N SEPULVEDA BLVD PMB 169","street2":"","type_aircraft":"Fixed-wing, single engine","type_aircraft_code":"4","type_engine":"Four-cycle piston","type_engine_code":"8","unique_id":"01550222","url":"https://eflight.com/aircraft/N421SD","watchlist_group":null,"watchlist_note":null,"weight_class":"","year_mfr":null,"zip":"902662906"}