{"airworthiness_class":"Multiple","airworthiness_date":"2000-01-21","airworthiness_ops":"Standard; Restricted; Aerial surveying","category":"conventional","cert_issue_date":"2019-09-16","city":"PHILADELPHIA","country_code":"US","county_code":"101","cruise_speed_mph":183,"data_date":"2026-09-25","documents":[],"eng_mfr_mdl":"17040","engine_horsepower":300,"engine_maker":"CONT MOTOR","engine_model":"TSIO-520 SER","engine_thrust_lb":0,"expiration_date":"2029-09-30","fractional_owner":0,"is_company":1,"is_electric":0,"is_unmanned_cert":0,"kit_mfr":"","kit_model":"","last_action_date":"2023-09-02","maker":"Cessna","maker_country":null,"maker_raw":"CESSNA","maker_segment":null,"mfr_mdl_code":"2074512","mode_s_code":"51172145","mode_s_hex":"A4F465","model":"320D","n_number":"N4181T","name":"KEYSTONE AERIAL SURVEYS INC","num_engines":2,"other_names":"","plain_english":"N4181T is a Cessna 320D, a fixed-wing airplane with more than one motor with a piston engine, built in 1966. It has 6 seats. It is registered to Keystone Aerial Surveys INC, a corporation in Philadelphia, Pennsylvania. The registration is valid: it was issued on September 16, 2019 and expires on September 30, 2029. It holds a multiple airworthiness certificate for standard; restricted; aerial surveying, dated January 21, 2000.","region":"Eastern","region_code":"1","registrant_type":"Corporation","registrant_type_code":"3","seats":6,"serial_number":"320D0081","source":"FAA Civil Aviation Registry, Releasable Aircraft Database","state":"PA","status":"Valid registration","status_code":"V","status_short":"Valid","street":"PO BOX 21059","street2":"","type_aircraft":"Fixed-wing, multi-engine","type_aircraft_code":"5","type_engine":"Piston (reciprocating)","type_engine_code":"1","unique_id":"00351594","url":"https://staging.data.eflight.com/aircraft/N4181T","watchlist_group":null,"watchlist_note":null,"weight_class":"","year_mfr":1966,"zip":"191140559"}