{"airworthiness_class":"Experimental","airworthiness_date":"2003-07-07","airworthiness_ops":"Exhibition","category":"conventional","cert_issue_date":"2001-11-05","city":"BELGRADE","country_code":"US","county_code":"031","cruise_speed_mph":90,"data_date":"2026-09-25","documents":[],"eng_mfr_mdl":"59050","engine_horsepower":400,"engine_maker":"SUBARU","engine_model":"ALL MDLS A/B","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":"Cessna","maker_country":null,"maker_raw":"CESSNA","maker_segment":null,"mfr_mdl_code":"2071810","mode_s_code":"51202633","mode_s_hex":"A5059B","model":"150D","n_number":"N4221U","name":"MCWILLIAMS ROBERT P","num_engines":1,"other_names":"","plain_english":"N4221U is a Cessna 150D, a fixed-wing airplane with one motor with a four-stroke engine, built in 1964. It has 2 seats. It is registered to an individual in Belgrade, Montana. The registration is valid: it was issued on November 5, 2001 and expires on January 31, 2029. It holds an experimental airworthiness certificate for exhibition, dated July 7, 2003.","region":"Northwest Mountain","region_code":"S","registrant_type":"Individual","registrant_type_code":"1","seats":2,"serial_number":"15060221","source":"FAA Civil Aviation Registry, Releasable Aircraft Database","state":"MT","status":"Valid registration","status_code":"V","status_short":"Valid","street":"245 WILDHORSE TRL","street2":"","type_aircraft":"Fixed-wing, single engine","type_aircraft_code":"4","type_engine":"Four-cycle piston","type_engine_code":"8","unique_id":"00021734","url":"https://staging.data.eflight.com/aircraft/N4221U","watchlist_group":null,"watchlist_note":null,"weight_class":"","year_mfr":1964,"zip":"597149506"}