{"airworthiness_class":"","airworthiness_date":"","airworthiness_ops":"","category":"conventional","cert_issue_date":"2025-10-18","city":"HENNEPIN","country_code":"US","county_code":"155","cruise_speed_mph":null,"data_date":"2026-10-02","documents":[],"eng_mfr_mdl":"","engine_horsepower":null,"engine_maker":"","engine_model":"","engine_thrust_lb":null,"expiration_date":"2032-10-31","fractional_owner":0,"is_company":1,"is_electric":0,"is_unmanned_cert":0,"kind":"business-jets","kit_mfr":"","kit_model":"","last_action_date":"2026-02-10","maker":"Learjet Inc","maker_country":null,"maker_raw":"LEARJET INC","maker_segment":null,"mfr_mdl_code":"5170805","mode_s_code":"51247563","mode_s_hex":"A54F73","model":"45","n_number":"N441MM","name":"MARQUIS AVIATION LLC","ntsb_checked":true,"ntsb_records":[{"city":"Escalante","damage":"SUBS","date":"2015-07-12","highest_injury":"SERS","ntsb_no":"GAA15LA131","probable_cause":"The pilot\u2019s inadequate preflight planning and his subsequent decision to attempt to climb over rising terrain with the helicopter over maximum gross weight while operating in high-density altitude conditions with a tailwind, which resulted in its inability to maintain a positive climb rate and a subsequent impact with terrain.","registration":"N441MM","state":"UT","summary":"Accident on July 12, 2015 at Escalante, UT: serious injuries, substantial damage.","type":"ACC"}],"num_engines":2,"other_names":"","plain_english":"N441MM is a Learjet Inc 45, a fixed-wing airplane with more than one motor with turbofan engines. It has 12 seats. It is registered to Marquis Aviation LLC, an LLC in Hennepin, Illinois. The registration is valid: it was issued on October 18, 2025 and expires on October 31, 2032. No airworthiness certificate is on file, which is normal for drones and for aircraft still being built or tested.","records_check":[{"finding":"Valid registration to Marquis Aviation LLC, an LLC, certificate issued October 18, 2025, expires October 31, 2032. No fractional interest recorded.","item":"Registration and identity","source":1,"status":"CLEAR"},{"finding":"No airworthiness certificate is on file. Usual for a newly registered aircraft, a project, or an aircraft that has not flown since a change of registration; ask for the certificate.","item":"Airworthiness certificate","source":1,"status":"ATTENTION"},{"finding":"No earlier tail number is recorded against serial 599 for this model in the deregistered file.","item":"Prior registrations of this airframe","source":2,"status":"CLEAR"},{"finding":"N441MM was previously assigned to 2 other aircraft: Robinson Helicopter R22 BETA (serial 3057, cancelled June 2, 2020); Cessna 441 (serial 4410030, cancelled January 10, 1990). Histories keyed to the tail number alone can mix aircraft up; this check keys on the serial number.","item":"Tail number reuse","source":2,"status":"ATTENTION"},{"finding":"No bills of sale, loans or releases have reached the registry in recent weeks. The index covers only recent filings; older liens are in the records file.","item":"Recent registry documents","source":3,"status":"NOTE"},{"finding":"1 NTSB record under N441MM: Accident on July 12, 2015 at Escalante, UT: serious injuries, substantial damage. Details below.","item":"Accident and incident record","source":4,"status":"ATTENTION"},{"finding":"These live in the FAA aircraft records file (every document ever filed against the aircraft) and, for larger aircraft, the International Registry. Part of the full report.","item":"Title chain, liens and 337 forms","source":null,"status":"PENDING"},{"finding":"AD compliance against the logbooks and flight-activity reconciliation are researched layers of the full report.","item":"Airworthiness directives and utilization","source":null,"status":"PENDING"}],"records_check_sources":[{"n":1,"name":"FAA Releasable Aircraft Database, master file","url":"https://registry.faa.gov/"},{"n":2,"name":"FAA deregistered aircraft file (part of the same download)","url":"https://registry.faa.gov/"},{"n":3,"name":"FAA document index: registry documents received in recent weeks","url":"https://registry.faa.gov/"},{"n":4,"name":"NTSB aviation accident database (CAROL)","url":"https://data.ntsb.gov/carol-main-public/basic-search"}],"region":"Great Lakes","region_code":"C","registrant_type":"LLC","registrant_type_code":"7","seats":12,"serial_number":"599","source":"FAA Civil Aviation Registry, Releasable Aircraft Database","state":"IL","status":"Valid registration","status_code":"V","status_short":"Valid","street":"10000 MARQUIS DR","street2":"","type_aircraft":"Fixed-wing, multi-engine","type_aircraft_code":"5","type_engine":"Turbofan","type_engine_code":"5","unique_id":"01344748","url":"https://eflight.com/aircraft/N441MM","watchlist_group":null,"watchlist_note":null,"weight_class":"","year_mfr":null,"zip":"613271000"}