{"airworthiness_class":"","airworthiness_date":"","airworthiness_ops":"","category":"conventional","cert_issue_date":"2015-10-23","city":"DEER LODGE","country_code":"US","county_code":"077","cruise_speed_mph":78,"data_date":"2026-10-02","documents":[],"eng_mfr_mdl":"","engine_horsepower":null,"engine_maker":"","engine_model":"","engine_thrust_lb":null,"expiration_date":"2028-10-31","fractional_owner":0,"is_company":1,"is_electric":0,"is_unmanned_cert":0,"kind":"helicopters","kit_mfr":"","kit_model":"","last_action_date":"2023-06-16","maker":"Bell","maker_country":null,"maker_raw":"BELL","maker_segment":null,"mfr_mdl_code":"1181028","mode_s_code":"52370056","mode_s_hex":"A9F02E","model":"47G-3B-1","n_number":"N73998","name":"HELI-WORKS FLIGHT SERVICES LLC","ntsb_checked":true,"ntsb_records":[{"city":"MEDINA","damage":"SUBS","date":"1994-06-10","highest_injury":"","ntsb_no":"CHI94T#A04","probable_cause":null,"registration":"N73998","state":"MN","summary":"Accident on June 10, 1994 at Medina, MN: substantial damage.","type":"ACC"},{"city":"MAPLE GROVE","damage":"SUBS","date":"1991-08-09","highest_injury":"NONE","ntsb_no":"CHI91DER13","probable_cause":"THE PILOT'S FAILURE TO MAINTAIN DIRECTIONAL CONTROL OF THE HELICOPTER DURING THE FORCED LANDING.  RELATED FACTORS ARE THE LOSS OF ENGINE POWER, LOSS OF ROTOR RPM, THE ERODED COMPRESSOR BLADES, THE PILOT'S OPERATION WITH KNOWN DEFICIENCIES IN EQUIPMENT AND INADEQUATE AIRCRAFT PREFLIGHT, AND THE BLOCKED SPRAY EQUIPMENT.","registration":"N73998","state":"MN","summary":"Accident on August 9, 1991 at Maple Grove, MN: no injuries, substantial damage.","type":"ACC"}],"num_engines":1,"other_names":"","plain_english":"N73998 is a Bell 47G-3B-1, a rotorcraft with a piston engine (a helicopter or multicopter), built in 1964. It has 3 seats. It is registered to Heli-Works Flight Services LLC, an LLC in Deer Lodge, Montana. The registration is valid: it was issued on October 23, 2015 and expires on October 31, 2028. 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 Heli-Works Flight Services LLC, an LLC, certificate issued October 23, 2015, expires October 31, 2028. 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 2902 for this model in the deregistered file.","item":"Prior registrations of this airframe","source":2,"status":"CLEAR"},{"finding":"No other airframe has carried N73998 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":"2 NTSB records under N73998: Accident on June 10, 1994 at Medina, MN: substantial damage. Accident on August 9, 1991 at Maple Grove, MN: 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":"Northwest Mountain","region_code":"S","registrant_type":"LLC","registrant_type_code":"7","seats":3,"serial_number":"2902","source":"FAA Civil Aviation Registry, Releasable Aircraft Database","state":"MT","status":"Valid registration","status_code":"V","status_short":"Valid","street":"1620 W PETERSON AVE","street2":"","type_aircraft":"Rotorcraft","type_aircraft_code":"6","type_engine":"Piston (reciprocating)","type_engine_code":"1","unique_id":"00412367","url":"https://eflight.com/aircraft/N73998","watchlist_group":null,"watchlist_note":null,"weight_class":"","year_mfr":1964,"zip":"597222002"}