{"airworthiness_class":"Multiple","airworthiness_date":"1990-03-16","airworthiness_ops":"Standard; Restricted","category":"conventional","cert_issue_date":"2001-02-28","city":"SENECA","country_code":"US","county_code":"073","cruise_speed_mph":81,"data_date":"2026-09-25","documents":[],"eng_mfr_mdl":"67020","engine_horsepower":1475,"engine_maker":"WRIGHT","engine_model":"R-1820 SER","engine_thrust_lb":0,"expiration_date":"2029-07-31","fractional_owner":0,"is_company":0,"is_electric":0,"is_unmanned_cert":0,"kit_mfr":"","kit_model":"","last_action_date":"2023-08-18","maker":"Sikorsky","maker_country":null,"maker_raw":"SIKORSKY","maker_segment":null,"mfr_mdl_code":"8141811","mode_s_code":"51444437","mode_s_hex":"A6491F","model":"S58E","n_number":"N504DH","name":"VAN SURDAM JOHN R","num_engines":1,"other_names":"","plain_english":"N504DH is a Sikorsky S58E, a rotorcraft with a piston engine (a helicopter or multicopter), built in 1958. It has 14 seats. It is registered to an individual in Seneca, South Carolina. The registration is valid: it was issued on February 28, 2001 and expires on July 31, 2029. It holds a multiple airworthiness certificate for standard; restricted, dated March 16, 1990.","region":"Southern","region_code":"7","registrant_type":"Individual","registrant_type_code":"1","seats":14,"serial_number":"58814","source":"FAA Civil Aviation Registry, Releasable Aircraft Database","state":"SC","status":"Valid registration","status_code":"V","status_short":"Valid","street":"130 STEARMAN LN","street2":"","type_aircraft":"Rotorcraft","type_aircraft_code":"6","type_engine":"Piston (reciprocating)","type_engine_code":"1","unique_id":"00531686","url":"https://staging.data.eflight.com/aircraft/N504DH","watchlist_group":null,"watchlist_note":null,"weight_class":"","year_mfr":1958,"zip":"296782059"}