{"airworthiness_class":"Experimental","airworthiness_date":"2004-12-07","airworthiness_ops":"Amateur built","category":"conventional","cert_issue_date":"2003-02-28","city":"EDMONDS","country_code":"US","county_code":"061","cruise_speed_mph":null,"data_date":"2026-09-25","documents":[],"eng_mfr_mdl":"99999","engine_horsepower":0,"engine_maker":"AMA/EXPR","engine_model":"UNKNOWN ENG","engine_thrust_lb":0,"expiration_date":"2029-08-31","fractional_owner":0,"is_company":0,"is_electric":0,"is_unmanned_cert":0,"kit_mfr":"AIRCRAFT SALES & PARTS LTD","kit_model":"CHINOOK PLUS 2","last_action_date":"2023-08-25","maker":"Frost Stephen","maker_country":null,"maker_raw":"FROST STEPHEN","maker_segment":null,"mfr_mdl_code":"056140E","mode_s_code":"51135115","mode_s_hex":"A4BA4D","model":"CHINOOK PLUS 2","n_number":"N4031M","name":"FROST STEPHEN A","num_engines":1,"other_names":"","plain_english":"N4031M is a Frost Stephen CHINOOK PLUS 2, a fixed-wing airplane with one motor with a piston engine, built in 2004. It has 2 seats. It is registered to an individual in Edmonds, Washington. The registration is valid: it was issued on February 28, 2003 and expires on August 31, 2029. It holds an experimental airworthiness certificate for amateur built, dated December 7, 2004.","region":"Northwest Mountain","region_code":"S","registrant_type":"Individual","registrant_type_code":"1","seats":2,"serial_number":"02158","source":"FAA Civil Aviation Registry, Releasable Aircraft Database","state":"WA","status":"Valid registration","status_code":"V","status_short":"Valid","street":"10016 EDMONDS WAY STE C BOX 109","street2":"","type_aircraft":"Fixed-wing, single engine","type_aircraft_code":"4","type_engine":"Piston (reciprocating)","type_engine_code":"1","unique_id":"00018309","url":"https://staging.data.eflight.com/aircraft/N4031M","watchlist_group":null,"watchlist_note":null,"weight_class":"","year_mfr":2004,"zip":"98020"}