{"airworthiness_class":"Experimental","airworthiness_date":"1979-05-24","airworthiness_ops":"Amateur built","category":"conventional","cert_issue_date":"2020-08-15","city":"WICHITA","country_code":"US","county_code":"173","cruise_speed_mph":45,"data_date":"2026-09-25","documents":[],"eng_mfr_mdl":"00000","engine_horsepower":0,"engine_maker":"NONE","engine_model":"NONE","engine_thrust_lb":0,"expiration_date":"2027-08-31","fractional_owner":0,"is_company":0,"is_electric":0,"is_unmanned_cert":0,"kit_mfr":"","kit_model":"","last_action_date":"2023-03-10","maker":"Berkshire Mfg. Corp.","maker_country":null,"maker_raw":"BERKSHIRE MFG. CORP.","maker_segment":null,"mfr_mdl_code":"1240104","mode_s_code":"53373152","mode_s_hex":"ADF66A","model":"CONCEPT 70","n_number":"N9990","name":"LEONARD STEVEN E","num_engines":0,"other_names":"","plain_english":"N9990 is a Berkshire Mfg. Corp. CONCEPT 70, a glider with no engine, built in 1974. It has 1 seat. It is registered to an individual in Wichita, Kansas. The registration is valid: it was issued on August 15, 2020 and expires on August 31, 2027. It holds an experimental airworthiness certificate for amateur built, dated May 24, 1979.","region":"Central","region_code":"3","registrant_type":"Individual","registrant_type_code":"1","seats":1,"serial_number":"16","source":"FAA Civil Aviation Registry, Releasable Aircraft Database","state":"KS","status":"Valid registration","status_code":"V","status_short":"Valid","street":"11117 W WESTLAWN ST","street2":"","type_aircraft":"Glider","type_aircraft_code":"1","type_engine":"None","type_engine_code":"0","unique_id":"00453460","url":"https://staging.data.eflight.com/aircraft/N9990","watchlist_group":null,"watchlist_note":null,"weight_class":"","year_mfr":1974,"zip":"672126411"}