{"airworthiness_class":"Special flight permit","airworthiness_date":"1972-05-16","airworthiness_ops":"Ferry flight for repairs, alterations, maintenance or storage; Operation in excess of maximum certificated","category":"conventional","cert_issue_date":"2002-12-09","city":"CHICAGO","country_code":"US","county_code":"031","cruise_speed_mph":138,"data_date":"2026-09-25","documents":[],"eng_mfr_mdl":"17027","engine_horsepower":260,"engine_maker":"CONT MOTOR","engine_model":"I0-470 SERIES","engine_thrust_lb":0,"expiration_date":"2029-01-31","fractional_owner":0,"is_company":0,"is_electric":0,"is_unmanned_cert":0,"kit_mfr":"","kit_model":"","last_action_date":"2023-07-07","maker":"Beech","maker_country":null,"maker_raw":"BEECH","maker_segment":null,"mfr_mdl_code":"1151406","mode_s_code":"51643404","mode_s_hex":"A74704","model":"35-B33","n_number":"N5680K","name":"HARKNESS DOUGLAS M","num_engines":1,"other_names":"HARKNESS MARGARET C","plain_english":"N5680K is a Beech 35-B33, a fixed-wing airplane with one motor with a piston engine, built in 1964. It has 4 seats. It is registered to co-owned owners in Chicago, Illinois. The registration is valid: it was issued on December 9, 2002 and expires on January 31, 2029. It holds a special flight permit airworthiness certificate for ferry flight for repairs, alterations, maintenance or storage; operation in excess of maximum certificated, dated May 16, 1972.","region":"Great Lakes","region_code":"C","registrant_type":"Co-owned","registrant_type_code":"4","seats":4,"serial_number":"CD-803","source":"FAA Civil Aviation Registry, Releasable Aircraft Database","state":"IL","status":"Valid registration","status_code":"V","status_short":"Valid","street":"9210 S DAMEN AVE","street2":"","type_aircraft":"Fixed-wing, single engine","type_aircraft_code":"4","type_engine":"Piston (reciprocating)","type_engine_code":"1","unique_id":"00650396","url":"https://staging.data.eflight.com/aircraft/N5680K","watchlist_group":null,"watchlist_note":null,"weight_class":"","year_mfr":1964,"zip":"606436301"}