{"airworthiness_class":"Experimental","airworthiness_date":"2020-12-27","airworthiness_ops":"Amateur built","category":"conventional","cert_issue_date":"2025-02-25","city":"PHOENIX","country_code":"US","county_code":"013","cruise_speed_mph":null,"data_date":"2026-09-25","documents":[],"eng_mfr_mdl":"52034","engine_horsepower":500,"engine_maker":"P&W","engine_model":"PT6A SERIES","engine_thrust_lb":0,"expiration_date":"2032-02-29","fractional_owner":0,"is_company":1,"is_electric":0,"is_unmanned_cert":0,"kit_mfr":"LANCAIR INTL INC","kit_model":"EVOLUTION","last_action_date":"2025-02-25","maker":"Mark Rock","maker_country":null,"maker_raw":"MARK ROCK","maker_segment":null,"mfr_mdl_code":"056359D","mode_s_code":"50217164","mode_s_hex":"A11E74","model":"EVOLUTION","n_number":"N171S","name":"COTTERKEY N171S LLC","num_engines":1,"other_names":"","plain_english":"N171S is a Mark Rock EVOLUTION, a fixed-wing airplane with one motor with a piston engine, built in 2017. It has 4 seats. It is registered to Cotterkey N171S LLC, an LLC in Phoenix, Arizona. The registration is valid: it was issued on February 25, 2025 and expires on February 29, 2032. It holds an experimental airworthiness certificate for amateur built, dated December 27, 2020.","region":"Western-Pacific","region_code":"4","registrant_type":"LLC","registrant_type_code":"7","seats":4,"serial_number":"EVO-0079","source":"FAA Civil Aviation Registry, Releasable Aircraft Database","state":"AZ","status":"Valid registration","status_code":"V","status_short":"Valid","street":"PO BOX 35800","street2":"","type_aircraft":"Fixed-wing, single engine","type_aircraft_code":"4","type_engine":"Piston (reciprocating)","type_engine_code":"1","unique_id":"01250303","url":"https://staging.data.eflight.com/aircraft/N171S","watchlist_group":null,"watchlist_note":null,"weight_class":"","year_mfr":2017,"zip":"850695800"}