{"airworthiness_class":"Experimental","airworthiness_date":"2022-02-22","airworthiness_ops":"Amateur built","category":"conventional","cert_issue_date":"2024-08-22","city":"MINOOKA","country_code":"US","county_code":"063","cruise_speed_mph":null,"data_date":"2026-09-25","documents":[],"eng_mfr_mdl":"55566","engine_horsepower":52,"engine_maker":"ROTAX","engine_model":"503 DCDI","engine_thrust_lb":0,"expiration_date":"2031-08-31","fractional_owner":0,"is_company":0,"is_electric":0,"is_unmanned_cert":0,"kit_mfr":"","kit_model":"","last_action_date":"2025-09-25","maker":"Francois Tillmann","maker_country":null,"maker_raw":"FRANCOIS TILLMANN","maker_segment":null,"mfr_mdl_code":"05640SB","mode_s_code":"51442552","mode_s_hex":"A6456A","model":"CHALLENGER II","n_number":"N503DK","name":"KROESCH DONALD F","num_engines":1,"other_names":"","plain_english":"N503DK is a Francois Tillmann CHALLENGER II, a fixed-wing airplane with one motor with a two-stroke engine, built in 2001. It has 2 seats. It is registered to an individual in Minooka, Illinois. The registration is valid: it was issued on August 22, 2024 and expires on August 31, 2031. It holds an experimental airworthiness certificate for amateur built, dated February 22, 2022.","region":"Great Lakes","region_code":"C","registrant_type":"Individual","registrant_type_code":"1","seats":2,"serial_number":"CH20198-1705","source":"FAA Civil Aviation Registry, Releasable Aircraft Database","state":"IL","status":"Valid registration","status_code":"V","status_short":"Valid","street":"24125 COUNTRYSIDE DR","street2":"","type_aircraft":"Fixed-wing, single engine","type_aircraft_code":"4","type_engine":"Two-cycle piston","type_engine_code":"7","unique_id":"01340806","url":"https://staging.data.eflight.com/aircraft/N503DK","watchlist_group":null,"watchlist_note":null,"weight_class":"","year_mfr":2001,"zip":"60447"}