{"airworthiness_class":"","airworthiness_date":"","airworthiness_ops":"","category":"conventional","cert_issue_date":"1997-08-06","city":"DICKINSON","country_code":"US","county_code":"167","cruise_speed_mph":78,"data_date":"2026-09-25","documents":[],"eng_mfr_mdl":"","engine_horsepower":null,"engine_maker":"","engine_model":"","engine_thrust_lb":null,"expiration_date":"2028-01-31","fractional_owner":0,"is_company":0,"is_electric":0,"is_unmanned_cert":0,"kit_mfr":"","kit_model":"","last_action_date":"2023-04-14","maker":"Bell","maker_country":null,"maker_raw":"BELL","maker_segment":null,"mfr_mdl_code":"1180702","mode_s_code":"52113243","mode_s_hex":"A896A3","model":"47D","n_number":"N6521","name":"HENRY MARK A","num_engines":1,"other_names":"","plain_english":"N6521 is a Bell 47D, a rotorcraft with a piston engine (a helicopter or multicopter), built in 1955. It has 2 seats. It is registered to an individual in Dickinson, Texas. The registration is valid: it was issued on August 6, 1997 and expires on January 31, 2028. No airworthiness certificate is on file, which is normal for drones and for aircraft still being built or tested.","region":"Southwestern","region_code":"2","registrant_type":"Individual","registrant_type_code":"1","seats":2,"serial_number":"55-4113","source":"FAA Civil Aviation Registry, Releasable Aircraft Database","state":"TX","status":"Valid registration","status_code":"V","status_short":"Valid","street":"12900 FM 3436 RD","street2":"","type_aircraft":"Rotorcraft","type_aircraft_code":"6","type_engine":"Piston (reciprocating)","type_engine_code":"1","unique_id":"00252566","url":"https://staging.data.eflight.com/aircraft/N6521","watchlist_group":null,"watchlist_note":null,"weight_class":"","year_mfr":1955,"zip":"775392565"}