{"airworthiness_class":"Standard","airworthiness_date":"2013-08-29","airworthiness_ops":"Utility","category":"conventional","cert_issue_date":"2014-10-23","city":"BOULDER","country_code":"US","county_code":"013","cruise_speed_mph":null,"data_date":"2026-09-25","documents":[],"eng_mfr_mdl":"00000","engine_horsepower":0,"engine_maker":"NONE","engine_model":"NONE","engine_thrust_lb":0,"expiration_date":"2027-10-31","fractional_owner":0,"is_company":1,"is_electric":0,"is_unmanned_cert":0,"kit_mfr":"","kit_model":"","last_action_date":"2023-03-24","maker":"Alexander Schleicher","maker_country":"DE","maker_raw":"ALEXANDER SCHLEICHER GMBH & CO","maker_segment":"Electric glider","mfr_mdl_code":"3801539","mode_s_code":"51177700","mode_s_hex":"A4FFC0","model":"ASK 21","n_number":"N421EF","name":"SOARING SOCIETY OF BOULDER","num_engines":0,"other_names":"","plain_english":"N421EF is an Alexander Schleicher ASK 21, a glider with no engine, built in 2013. It has 2 seats. It is registered to Soaring Society Of Boulder, a corporation in Boulder, Colorado. The registration is valid: it was issued on October 23, 2014 and expires on October 31, 2027. It holds a standard airworthiness certificate for utility, dated August 29, 2013.","region":"Northwest Mountain","region_code":"S","registrant_type":"Corporation","registrant_type_code":"3","seats":2,"serial_number":"21905","source":"FAA Civil Aviation Registry, Releasable Aircraft Database","state":"CO","status":"Valid registration","status_code":"V","status_short":"Valid","street":"PO BOX 17577","street2":"","type_aircraft":"Glider","type_aircraft_code":"1","type_engine":"None","type_engine_code":"0","unique_id":"01129860","url":"https://staging.data.eflight.com/aircraft/N421EF","watchlist_group":"Electric glider","watchlist_note":"AS 33 ME","weight_class":"","year_mfr":2013,"zip":"803080577"}