{"airworthiness_class":"Experimental","airworthiness_date":"2003-09-30","airworthiness_ops":"Amateur built","category":"conventional","cert_issue_date":"2025-01-16","city":"OSHKOSH","country_code":"US","county_code":"139","cruise_speed_mph":null,"data_date":"2026-10-02","documents":[],"eng_mfr_mdl":"17042","engine_horsepower":300,"engine_maker":"CONT MOTOR","engine_model":"IO-550 SERIES","engine_thrust_lb":0,"expiration_date":"2032-01-31","fractional_owner":0,"is_company":1,"is_electric":0,"is_unmanned_cert":0,"kind":"piston-singles","kit_mfr":"LANCAIR INTL INC","kit_model":"LANCAIR LEGACY 2000","last_action_date":"2025-01-16","maker":"Hall Lester R","maker_country":null,"maker_raw":"HALL LESTER R","maker_segment":null,"mfr_mdl_code":"05615Z5","mode_s_code":"52267656","mode_s_hex":"A96FAE","model":"LEGACY","n_number":"N707MM","name":"EAA AVIATION FOUNDATION INC","ntsb_checked":true,"ntsb_records":[{"city":"Rochester","damage":"MINR","date":"2023-07-20","highest_injury":"NONE","ntsb_no":"ENG23LA034","probable_cause":"Mechanically distressed reduction gears causing an engine overspeed and turbine blade tensile overload and subsequent uncontainment. Contributing to the uncontainment was the operator\u2019s use of the engine after knowingly purchasing the engine in an unserviceable condition and only conducting a periodic inspection before flight.","registration":"N707MM","state":"MN","summary":"Incident on July 20, 2023 at Rochester, MN: no injuries, minor damage.","type":"INC"}],"num_engines":1,"other_names":"","plain_english":"N707MM is a Hall Lester R LEGACY, a fixed-wing airplane with one motor with a piston engine, built in 2003. It has 2 seats. It is registered to Eaa Aviation Foundation INC, a corporation in Oshkosh, Wisconsin. The registration is valid: it was issued on January 16, 2025 and expires on January 31, 2032. It holds an experimental airworthiness certificate for amateur built, dated September 30, 2003.","records_check":[{"finding":"Valid registration to Eaa Aviation Foundation INC, a corporation, certificate issued January 16, 2025, expires January 31, 2032. No fractional interest recorded.","item":"Registration and identity","source":1,"status":"CLEAR"},{"finding":"Experimental certificate for amateur built, dated September 30, 2003, consistent with the 2003 manufacture year.","item":"Airworthiness certificate","source":1,"status":"CLEAR"},{"finding":"No earlier tail number is recorded against serial L2K-221 for this model in the deregistered file.","item":"Prior registrations of this airframe","source":2,"status":"CLEAR"},{"finding":"N707MM was previously assigned to 1 other aircraft: Robinson Helicopter R22 BETA (serial 2653, cancelled September 8, 1997). 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 N707MM: Incident on July 20, 2023 at Rochester, MN: no injuries, minor 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":"Corporation","registrant_type_code":"3","seats":2,"serial_number":"L2K-221","source":"FAA Civil Aviation Registry, Releasable Aircraft Database","state":"WI","status":"Valid registration","status_code":"V","status_short":"Valid","street":"3000 POBEREZNY RD","street2":"","type_aircraft":"Fixed-wing, single engine","type_aircraft_code":"4","type_engine":"Piston (reciprocating)","type_engine_code":"1","unique_id":"00065949","url":"https://eflight.com/aircraft/N707MM","watchlist_group":null,"watchlist_note":null,"weight_class":"","year_mfr":2003,"zip":"549028939"}