{"airworthiness_class":"Experimental","airworthiness_date":"2025-09-05","airworthiness_ops":"Research and development; Crew training","category":"conventional","cert_issue_date":"2025-08-18","city":"LEXINGTON","country_code":"US","county_code":"017","cruise_speed_mph":null,"data_date":"2026-10-02","documents":[],"eng_mfr_mdl":"30148","engine_horsepower":1750,"engine_maker":"GE","engine_model":"CT7-9B","engine_thrust_lb":0,"expiration_date":"2032-08-31","fractional_owner":0,"is_company":1,"is_electric":0,"is_unmanned_cert":0,"kind":"turboprops","kit_mfr":"","kit_model":"","last_action_date":"2025-10-16","maker":"Saab","maker_country":null,"maker_raw":"SAAB","maker_segment":null,"mfr_mdl_code":"7860106","mode_s_code":"50715461","mode_s_hex":"A39B31","model":"SAAB 340B","n_number":"N331TB","name":"MASSACHUSETTS INSTITUTE OF TECHNOLOGY","ntsb_checked":true,"ntsb_records":[{"city":"OSHKOSH","damage":"SUBS","date":"1999-07-29","highest_injury":"NONE","ntsb_no":"CHI99FA263","probable_cause":"the pilot failed to maintain directional control of the airplane.","registration":"N331TB","state":"WI","summary":"Accident on July 29, 1999 at Oshkosh, WI: no injuries, substantial damage.","type":"ACC"}],"num_engines":2,"other_names":"","plain_english":"N331TB is a Saab SAAB 340B, a fixed-wing airplane with more than one motor with turboprop engines, built in 1992. It has 37 seats. It is registered to Massachusetts Institute Of Technology, a corporation in Lexington, Massachusetts. The registration is valid: it was issued on August 18, 2025 and expires on August 31, 2032. It holds an experimental airworthiness certificate for research and development; crew training, dated September 5, 2025.","records_check":[{"finding":"Valid registration to Massachusetts Institute Of Technology, a corporation, certificate issued August 18, 2025, expires August 31, 2032. No fractional interest recorded.","item":"Registration and identity","source":1,"status":"CLEAR"},{"finding":"The airworthiness certificate on file is dated September 5, 2025, 33 years after the 1992 manufacture year. A re-issued certificate commonly follows export and re-import, a rebuild, or a return to the register after cancellation. The cause is documented in the FAA aircraft records file, which the full report obtains.","item":"Airworthiness certificate date","source":1,"status":"ATTENTION"},{"finding":"No earlier tail number is recorded against serial 340B-331 for this model in the deregistered file.","item":"Prior registrations of this airframe","source":2,"status":"CLEAR"},{"finding":"N331TB was previously assigned to 1 other aircraft: Underland G/Finstrom D BROKAW BULLET (serial 2GTP, cancelled May 19, 2015). 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 N331TB: Accident on July 29, 1999 at Oshkosh, WI: no 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":"New England","region_code":"E","registrant_type":"Corporation","registrant_type_code":"3","seats":37,"serial_number":"340B-331","source":"FAA Civil Aviation Registry, Releasable Aircraft Database","state":"MA","status":"Valid registration","status_code":"V","status_short":"Valid","street":"244 WOOD ST","street2":"","type_aircraft":"Fixed-wing, multi-engine","type_aircraft_code":"5","type_engine":"Turboprop","type_engine_code":"2","unique_id":"01278448","url":"https://eflight.com/aircraft/N331TB","watchlist_group":null,"watchlist_note":null,"weight_class":"","year_mfr":1992,"zip":"024216426"}