{"abstract":"The FAA is adopting a new airworthiness directive (AD) for certain Costruzioni Aeronautiche Tecnam S.p.A. (Tecnam) Model P-Mentor airplanes. This AD was prompted by the failure of the pilot seat locking mechanism. This AD requires an initial and repetitive inspections of the seat rails of pilot and co-pilot seats and completing corrective action as needed. This AD includes an optional terminating action for the inspection requirement. The FAA is issuing this AD to address the unsafe condition on these products.","action":"Final rule; request for comments.","agencies":[{"raw_name":"DEPARTMENT OF TRANSPORTATION","name":"Transportation Department","id":492,"url":"https://www.federalregister.gov/agencies/transportation-department","json_url":"https://www.federalregister.gov/api/v1/agencies/492","parent_id":null,"slug":"transportation-department"},{"raw_name":"Federal Aviation Administration","name":"Federal Aviation Administration","id":159,"url":"https://www.federalregister.gov/agencies/federal-aviation-administration","json_url":"https://www.federalregister.gov/api/v1/agencies/159","parent_id":492,"slug":"federal-aviation-administration"}],"body_html_url":"https://www.federalregister.gov/documents/full_text/html/2025/09/11/2025-17516.html","cfr_references":[{"chapter":null,"citation_url":null,"part":"39","title":14}],"citation":"90 FR 43907","comment_url":null,"comments_close_on":null,"correction_of":null,"corrections":[],"dates":"This AD is effective September 26, 2025.","disposition_notes":null,"docket_ids":["Docket No. FAA-2025-2266","Project Identifier MCAI-2024-00406-A","Amendment 39-23123","AD 2025-17-13"],"dockets":[{"supporting_documents":[{"title":"U.S. DOT/FAA - Supplemental AD Documents","document_id":"FAA-2025-2266-0002"}],"agency_name":"FAA","documents":[{"comment_count":0,"comment_start_date":"2025-09-11","updated_at":"2025-10-28T00:06:50.314-04:00","comment_url":"https://www.regulations.gov/commenton/FAA-2025-2266-0001","allow_late_comments":false,"id":"FAA-2025-2266-0001","comment_end_date":"2025-10-28","regulations_dot_gov_open_for_comment":false}],"supporting_documents_count":1,"id":"FAA-2025-2266","title":"MCAI-2024-00406-A; Costruzioni Aeronautiche Tecnam S.p.A. Model P-Mentor airplanes; Seat Rails - Inspection"}],"document_number":"2025-17516","effective_on":"2025-09-26","end_page":43909,"executive_order_notes":null,"executive_order_number":null,"full_text_xml_url":"https://www.federalregister.gov/documents/full_text/xml/2025/09/11/2025-17516.xml","html_url":"https://www.federalregister.gov/documents/2025/09/11/2025-17516/airworthiness-directives-costruzioni-aeronautiche-tecnam-spa-airplanes","images":{},"images_metadata":{},"json_url":"https://www.federalregister.gov/api/v1/documents/2025-17516?publication_date=2025-09-11","mods_url":"https://www.govinfo.gov/metadata/granule/FR-2025-09-11/2025-17516/mods.xml","not_received_for_publication":null,"page_length":3,"page_views":{"count":214,"last_updated":"2026-06-14 20:15:04 -0400"},"pdf_url":"https://www.govinfo.gov/content/pkg/FR-2025-09-11/pdf/2025-17516.pdf","presidential_document_number":null,"proclamation_number":null,"public_inspection_pdf_url":"https://public-inspection.federalregister.gov/2025-17516.pdf?1757508316","publication_date":"2025-09-11","raw_text_url":"https://www.federalregister.gov/documents/full_text/text/2025/09/11/2025-17516.txt","regulation_id_number_info":{"2120-AA64":{"issue":"202504","html_url":"https://www.federalregister.gov/regulations/2120-AA64/airworthiness-directives","title":"Airworthiness Directives","xml_url":"http://www.reginfo.gov/public/do/eAgendaViewRule?pubId=202504&RIN=2120-AA64&operation=OPERATION_EXPORT_XML","priority_category":"Routine and Frequent"}},"regulation_id_numbers":["2120-AA64"],"regulations_dot_gov_info":{"supporting_documents":[{"title":"U.S. DOT/FAA - Supplemental AD Documents","document_id":"FAA-2025-2266-0002"}],"regulatory_plan":{"html_url":"https://www.federalregister.gov/regulations/2120-AA64/airworthiness-directives","title":"Airworthiness Directives"},"comments_count":0,"agency_id":"FAA","comments_url":"https://www.regulations.gov/docketBrowser?rpp=50&so=DESC&sb=postedDate&po=0&dct=PS&D=FAA-2025-2266","supporting_documents_count":1,"docket_id":"FAA-2025-2266","document_id":"FAA-2025-2266-0001","regulation_id_number":"2120-AA64","title":"MCAI-2024-00406-A; Costruzioni Aeronautiche Tecnam S.p.A. Model P-Mentor airplanes; Seat Rails - Inspection","checked_regulationsdotgov_at":"2025-10-28T04:06:49Z"},"regulations_dot_gov_url":null,"significant":false,"signing_date":null,"start_page":43907,"subtype":null,"title":"Airworthiness Directives; Costruzioni Aeronautiche Tecnam S.p.A. Airplanes","toc_doc":"Costruzioni Aeronautiche Tecnam S.p.A Airplanes","toc_subject":"Airworthiness Directives","topics":["Air transportation","Aircraft","Aviation safety","Incorporation by reference","Safety"],"type":"Rule","volume":90}