{"airworthiness_class":"","airworthiness_date":"","airworthiness_ops":"","category":"sustainable","cert_issue_date":"2026-06-26","city":"ENGLEWOOD","country_code":"US","county_code":"005","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":"2033-06-30","fractional_owner":0,"is_company":1,"is_electric":1,"is_unmanned_cert":0,"kind":"electric","kit_mfr":"","kit_model":"","last_action_date":"2026-06-26","maker":"Bye Aerospace","maker_country":"US","maker_raw":"BYE AEROSPACE INC","maker_segment":"Piloted electric and eVTOL","mfr_mdl_code":"05643UH","mode_s_code":"51126413","mode_s_hex":"A4AD0B","model":"EFLYER 2 MODEL 10","n_number":"N400EF","name":"BYE AEROSPACE INC","ntsb_checked":true,"ntsb_records":[],"num_engines":1,"other_names":"","plain_english":"N400EF is a Bye Aerospace EFLYER 2 MODEL 10, a fixed-wing airplane with one motor powered by electric motors. It has 2 seats. It is registered to Bye Aerospace INC, a corporation in Englewood, Colorado. The registration is valid: it was issued on June 26, 2026 and expires on June 30, 2033. 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 Bye Aerospace INC, a corporation, certificate issued June 26, 2026, expires June 30, 2033. 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 0001 for this model in the deregistered file.","item":"Prior registrations of this airframe","source":2,"status":"CLEAR"},{"finding":"N400EF was previously assigned to 1 other aircraft: Gates Learjet Corp. 35A (serial 561, cancelled July 13, 2005). 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":"No NTSB investigation records located under N400EF. 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":"Corporation","registrant_type_code":"3","seats":2,"serial_number":"0001","source":"FAA Civil Aviation Registry, Releasable Aircraft Database","state":"CO","status":"Valid registration","status_code":"V","status_short":"Valid","street":"7395 S PEORIA ST STE 206","street2":"","type_aircraft":"Fixed-wing, single engine","type_aircraft_code":"4","type_engine":"Electric","type_engine_code":"10","unique_id":"01549424","url":"https://eflight.com/aircraft/N400EF","watchlist_group":"Electric airplane","watchlist_note":"eFlyer trainer, Denver, Colorado","weight_class":"","year_mfr":null,"zip":"801124158"}