{"airworthiness_class":"Experimental","airworthiness_date":"1989-05-08","airworthiness_ops":"Amateur built","category":"conventional","cert_issue_date":"2025-02-21","city":"WEST LINN","country_code":"US","county_code":"005","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":"2032-02-29","fractional_owner":0,"is_company":0,"is_electric":0,"is_unmanned_cert":0,"kit_mfr":"","kit_model":"","last_action_date":"2025-02-21","maker":"Beck Larry R","maker_country":null,"maker_raw":"BECK LARRY R","maker_segment":null,"mfr_mdl_code":"056083H","mode_s_code":"51031156","mode_s_hex":"A4326E","model":"RV-4","n_number":"N37LB","name":"KELLER DOUGLAS O","num_engines":1,"other_names":"","plain_english":"N37LB is a Beck Larry R RV-4, a fixed-wing airplane with one motor with a piston engine, built in 1989. It has 2 seats. It is registered to an individual in West Linn, Oregon. The registration is valid: it was issued on February 21, 2025 and expires on February 29, 2032. It holds an experimental airworthiness certificate for amateur built, dated May 8, 1989.","region":"Northwest Mountain","region_code":"S","registrant_type":"Individual","registrant_type_code":"1","seats":2,"serial_number":"2","source":"FAA Civil Aviation Registry, Releasable Aircraft Database","state":"OR","status":"Valid registration","status_code":"V","status_short":"Valid","street":"2101 SATTER ST","street2":"","type_aircraft":"Fixed-wing, single engine","type_aircraft_code":"4","type_engine":"Piston (reciprocating)","type_engine_code":"1","unique_id":"00450366","url":"https://staging.data.eflight.com/aircraft/N37LB","watchlist_group":null,"watchlist_note":null,"weight_class":"","year_mfr":1989,"zip":"970688335"}