{"airworthiness_class":"Standard","airworthiness_date":"1958-08-06","airworthiness_ops":"","category":"conventional","cert_issue_date":"2014-05-09","city":"MARION","country_code":"US","county_code":"029","cruise_speed_mph":184,"data_date":"2026-10-02","documents":[],"eng_mfr_mdl":"67028","engine_horsepower":1425,"engine_maker":"WRIGHT","engine_model":"C9HD SERIES","engine_thrust_lb":0,"expiration_date":"2027-05-31","fractional_owner":0,"is_company":0,"is_electric":0,"is_unmanned_cert":0,"kind":"piston-twins","kit_mfr":"","kit_model":"","last_action_date":"2023-07-28","maker":"Lockheed","maker_country":null,"maker_raw":"LOCKHEED","maker_segment":null,"mfr_mdl_code":"5261642","mode_s_code":"52041176","mode_s_hex":"A8427E","model":"18-56","n_number":"N631LS","name":"HILL LAWRENCE E","ntsb_checked":true,"ntsb_records":[],"num_engines":2,"other_names":"","plain_english":"N631LS is a Lockheed 18-56, a fixed-wing airplane with more than one motor with a piston engine. It has 17 seats. It is registered to an individual in Marion, Montana. The registration is valid: it was issued on May 9, 2014 and expires on May 31, 2027. It holds a standard airworthiness certificate, dated August 6, 1958.","records_check":[{"finding":"Valid registration to Hill Lawrence E, an individual, certificate issued May 9, 2014, expires May 31, 2027. No fractional interest recorded.","item":"Registration and identity","source":1,"status":"CLEAR"},{"finding":"Standard certificate; the FAA file gives no certificate date and no manufacture year.","item":"Airworthiness certificate","source":1,"status":"NOTE"},{"finding":"No earlier tail number is recorded against serial 2404 for this model in the deregistered file.","item":"Prior registrations of this airframe","source":2,"status":"CLEAR"},{"finding":"No other airframe has carried N631LS according to the deregistered file.","item":"Tail number reuse","source":2,"status":"CLEAR"},{"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":"No NTSB investigation records located under N631LS. CLEAR means the query ran and returned nothing, not that nothing ever happened.","item":"Accident and incident record","source":4,"status":"CLEAR"},{"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":"Northwest Mountain","region_code":"S","registrant_type":"Individual","registrant_type_code":"1","seats":17,"serial_number":"2404","source":"FAA Civil Aviation Registry, Releasable Aircraft Database","state":"MT","status":"Valid registration","status_code":"V","status_short":"Valid","street":"3070 LOWER LOST PRAIRIE RD","street2":"","type_aircraft":"Fixed-wing, multi-engine","type_aircraft_code":"5","type_engine":"Piston (reciprocating)","type_engine_code":"1","unique_id":"00591916","url":"https://eflight.com/aircraft/N631LS","watchlist_group":null,"watchlist_note":null,"weight_class":"","year_mfr":null,"zip":"599259706"}