{"airworthiness_class":"Multiple","airworthiness_date":"1983-08-01","airworthiness_ops":"Standard; Restricted; Agriculture and pest control","category":"conventional","cert_issue_date":"2018-09-15","city":"THORNTON","country_code":"US","county_code":"009","cruise_speed_mph":63,"data_date":"2026-10-02","documents":[{"collateral_type":"Aircraft","doc_type":"Bill of sale (evidence of ownership)","doc_type_code":"BOS","party":"","receipt_date":"2026-09-29"}],"eng_mfr_mdl":"27020","engine_horsepower":210,"engine_maker":"FRANKLIN","engine_model":"6A&6V335 SER","engine_thrust_lb":0,"expiration_date":"2028-09-30","fractional_owner":0,"is_company":0,"is_electric":0,"is_unmanned_cert":0,"kind":"helicopters","kit_mfr":"","kit_model":"","last_action_date":"2023-06-10","maker":"Hiller","maker_country":null,"maker_raw":"HILLER","maker_segment":null,"mfr_mdl_code":"4360104","mode_s_code":"51426553","mode_s_hex":"A62D6B","model":"UH-12A","n_number":"N4977E","name":"WYLLIE ASHTON R J TRUSTEE","ntsb_checked":true,"ntsb_records":[],"num_engines":1,"other_names":"","plain_english":"N4977E is a Hiller UH-12A, a rotorcraft with a piston engine (a helicopter or multicopter), built in 1951. It has 4 seats. It is registered to an individual in Thornton, New Hampshire. The registration is valid: it was issued on September 15, 2018 and expires on September 30, 2028. It holds a multiple airworthiness certificate for standard; restricted; agriculture and pest control, dated August 1, 1983. 1 document is on file: bill of sale (evidence of ownership).","records_check":[{"finding":"Valid registration to Wyllie Ashton R J Trustee, an individual, certificate issued September 15, 2018, expires September 30, 2028. No fractional interest recorded.","item":"Registration and identity","source":1,"status":"CLEAR"},{"finding":"The airworthiness certificate on file is dated August 1, 1983, 32 years after the 1951 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 254 for this model in the deregistered file.","item":"Prior registrations of this airframe","source":2,"status":"CLEAR"},{"finding":"No other airframe has carried N4977E according to the deregistered file.","item":"Tail number reuse","source":2,"status":"CLEAR"},{"finding":"1 document received recently: Bill of sale (evidence of ownership) (September 29, 2026).","item":"Recent registry documents","source":3,"status":"NOTE"},{"finding":"No NTSB investigation records located under N4977E. 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":"New England","region_code":"E","registrant_type":"Individual","registrant_type_code":"1","seats":4,"serial_number":"254","source":"FAA Civil Aviation Registry, Releasable Aircraft Database","state":"NH","status":"Valid registration","status_code":"V","status_short":"Valid","street":"503 MILL BROOK RD","street2":"","type_aircraft":"Rotorcraft","type_aircraft_code":"6","type_engine":"Piston (reciprocating)","type_engine_code":"1","unique_id":"00300745","url":"https://eflight.com/aircraft/N4977E","watchlist_group":null,"watchlist_note":null,"weight_class":"","year_mfr":1951,"zip":"032856349"}