{"airworthiness_class":"","airworthiness_date":"","airworthiness_ops":"","category":"drone","cert_issue_date":"2024-12-23","city":"OAK RIDGE","country_code":"US","county_code":"001","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":"2031-12-31","fractional_owner":0,"is_company":1,"is_electric":1,"is_unmanned_cert":0,"kind":"drones","kit_mfr":"","kit_model":"","last_action_date":"2024-12-23","maker":"Skydio","maker_country":"US","maker_raw":"SKYDIO INC","maker_segment":"Inspection and mapping drones","mfr_mdl_code":"06102IJ","mode_s_code":"51312743","mode_s_hex":"A595E3","model":"X10","n_number":"N4590","name":"US DEPARTMENT OF ENERGY","ntsb_checked":true,"ntsb_records":[{"city":"QUINCY","damage":"DEST","date":"1998-12-23","highest_injury":"FATL","ntsb_no":"LAX99FA057","probable_cause":"An inaccurate exhaust gas temperature gauge, that allowed the engine to be run over-temperature unknowingly by the pilot, which resulted in the subsequent failure of the turbine sections.  Also causal was the pilot's failure to maintain rotor RPM during the autorotation.  A factor in the accident was the operator's failure to adequately perform engine health indicator tests.","registration":"N4590","state":"CA","summary":"Accident on December 23, 1998 at Quincy, CA: fatal, destroyed (1 fatal).","type":"ACC"}],"num_engines":4,"other_names":"C/O OAK RIDGE NATIONAL LABORATORY","plain_english":"N4590 is a Skydio X10, a rotorcraft powered by electric motors (a helicopter or multicopter). It is unmanned. It is registered to US Department Of Energy, a government body in Oak Ridge, Tennessee. The registration is valid: it was issued on December 23, 2024 and expires on December 31, 2031. 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 US Department Of Energy, a government body, certificate issued December 23, 2024, expires December 31, 2031. 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 1668BR40EA0035N for this model in the deregistered file.","item":"Prior registrations of this airframe","source":2,"status":"CLEAR"},{"finding":"N4590 was previously assigned to 1 other aircraft: Bell UH-1H (serial 65-09986, cancelled January 7, 2000). 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 N4590: Accident on December 23, 1998 at Quincy, CA: fatal, destroyed (1 fatal). 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":"Central","region_code":"3","registrant_type":"Government","registrant_type_code":"5","seats":0,"serial_number":"1668BR40EA0035N","source":"FAA Civil Aviation Registry, Releasable Aircraft Database","state":"TN","status":"Valid registration","status_code":"V","status_short":"Valid","street":"PO BOX 2008 MS-6151","street2":"","type_aircraft":"Rotorcraft","type_aircraft_code":"6","type_engine":"Electric","type_engine_code":"10","unique_id":"01477663","url":"https://eflight.com/aircraft/N4590","watchlist_group":null,"watchlist_note":null,"weight_class":"","year_mfr":null,"zip":"378306151"}