{"airworthiness_class":"Standard","airworthiness_date":"1976-12-29","airworthiness_ops":"Normal","category":"conventional","cert_issue_date":"2007-10-29","city":"PADUCAH","country_code":"US","county_code":"145","cruise_speed_mph":90,"data_date":"2026-10-02","documents":[],"eng_mfr_mdl":"17031","engine_horsepower":435,"engine_maker":"CONT MOTOR","engine_model":"GTSI0-520-F-K","engine_thrust_lb":0,"expiration_date":"2028-07-31","fractional_owner":0,"is_company":1,"is_electric":0,"is_unmanned_cert":0,"kind":"piston-twins","kit_mfr":"","kit_model":"","last_action_date":"2023-05-26","maker":"Cessna","maker_country":null,"maker_raw":"CESSNA","maker_segment":null,"mfr_mdl_code":"2076016","mode_s_code":"50422035","mode_s_hex":"A2241D","model":"421C","n_number":"N237SM","name":"WESTERN RIVERS AIRCRAFT LLC","ntsb_checked":true,"ntsb_records":[{"city":"Tampa","damage":"SUBS","date":"2002-04-25","highest_injury":"NONE","ntsb_no":"MIA02LA089","probable_cause":"the fracture of the landing gear upper barrel due to fatigue cracking, caused by improper machining after the barrel was assembled during the manufacturing process, resulting in damage to the airplane.","registration":"N237SM","state":"FL","summary":"Accident on April 25, 2002 at Tampa, FL: no injuries, substantial damage.","type":"ACC"}],"num_engines":2,"other_names":"","plain_english":"N237SM is a Cessna 421C, a fixed-wing airplane with more than one motor with a piston engine, built in 1976. It has 8 seats. It is registered to Western Rivers Aircraft LLC, an LLC in Paducah, Kentucky. The registration is valid: it was issued on October 29, 2007 and expires on July 31, 2028. It holds a standard airworthiness certificate for normal, dated December 29, 1976.","records_check":[{"finding":"Valid registration to Western Rivers Aircraft LLC, an LLC, certificate issued October 29, 2007, expires July 31, 2028. No fractional interest recorded.","item":"Registration and identity","source":1,"status":"CLEAR"},{"finding":"Standard certificate for normal, dated December 29, 1976, consistent with the 1976 manufacture year.","item":"Airworthiness certificate","source":1,"status":"CLEAR"},{"finding":"No earlier tail number is recorded against serial 421C0237 for this model in the deregistered file.","item":"Prior registrations of this airframe","source":2,"status":"CLEAR"},{"finding":"No other airframe has carried N237SM 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":"1 NTSB record under N237SM: Accident on April 25, 2002 at Tampa, FL: 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":"Central","region_code":"3","registrant_type":"LLC","registrant_type_code":"7","seats":8,"serial_number":"421C0237","source":"FAA Civil Aviation Registry, Releasable Aircraft Database","state":"KY","status":"Valid registration","status_code":"V","status_short":"Valid","street":"PO BOX 300","street2":"","type_aircraft":"Fixed-wing, multi-engine","type_aircraft_code":"5","type_engine":"Piston (reciprocating)","type_engine_code":"1","unique_id":"00023325","url":"https://eflight.com/aircraft/N237SM","watchlist_group":null,"watchlist_note":null,"weight_class":"","year_mfr":1976,"zip":"420020300"}