{"airworthiness_class":"Experimental","airworthiness_date":"2014-08-15","airworthiness_ops":"Amateur built","category":"conventional","cert_issue_date":"2013-12-27","city":"S COFFEYVILLE","country_code":"US","county_code":"105","cruise_speed_mph":null,"data_date":"2026-09-25","documents":[],"eng_mfr_mdl":"17025","engine_horsepower":300,"engine_maker":"CONT MOTOR","engine_model":"IO-360 SER","engine_thrust_lb":0,"expiration_date":"2029-12-31","fractional_owner":0,"is_company":0,"is_electric":0,"is_unmanned_cert":0,"kit_mfr":"","kit_model":"","last_action_date":"2023-09-22","maker":"Martin William S","maker_country":null,"maker_raw":"MARTIN WILLIAM S","maker_segment":null,"mfr_mdl_code":"0563260","mode_s_code":"51445314","mode_s_hex":"A64ACC","model":"ALLIED T J","n_number":"N504WM","name":"MARTIN WILLIAM S","num_engines":1,"other_names":"","plain_english":"N504WM is a Martin William S ALLIED T J, a glider with a piston engine, built in 2014. It has 3 seats. It is registered to an individual in S Coffeyville, Oklahoma. The registration is valid: it was issued on December 27, 2013 and expires on December 31, 2029. It holds an experimental airworthiness certificate for amateur built, dated August 15, 2014.","region":"Southwestern","region_code":"2","registrant_type":"Individual","registrant_type_code":"1","seats":3,"serial_number":"022","source":"FAA Civil Aviation Registry, Releasable Aircraft Database","state":"OK","status":"Valid registration","status_code":"V","status_short":"Valid","street":"PO BOX 472","street2":"","type_aircraft":"Glider","type_aircraft_code":"1","type_engine":"Piston (reciprocating)","type_engine_code":"1","unique_id":"01137719","url":"https://staging.data.eflight.com/aircraft/N504WM","watchlist_group":null,"watchlist_note":null,"weight_class":"","year_mfr":2014,"zip":"740720472"}