{"abstract":"The FAA is adopting a new airworthiness directive (AD) for all Bell Textron Inc. (Bell) Model 204B, 205A, 205A-1, 205B, and 210 helicopters. This AD was prompted by an accident and incidents involving failure of the tail boom attachment structure. This AD requires inspecting the tail boom assembly hardware, replacing tail boom attachment hardware, greasing the bolt shanks, and inspecting torque. This AD also prohibits installing steel alloy nuts on any helicopter. The FAA is issuing this AD to address the unsafe condition on these products.","action":"Final rule.","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/2024/10/04/2024-22908.html","cfr_references":[{"chapter":null,"citation_url":null,"part":39,"title":14}],"citation":"89 FR 80734","comment_url":null,"comments_close_on":null,"correction_of":null,"corrections":[],"dates":"This AD is effective November 8, 2024.","disposition_notes":null,"docket_ids":["Docket No. FAA-2022-0600","Project Identifier AD-2021-01160-R","Amendment 39-22827","AD 2024-17-02"],"dockets":[{"supporting_documents":[{"title":"U.S. DOT/FAA - Supplemental AD Documents","document_id":"FAA-2022-0600-0009"}],"agency_name":"FAA","documents":[{"comment_count":0,"comment_start_date":"2024-10-04","updated_at":"2024-10-04T09:02:43.776-04:00","comment_url":"https://www.regulations.gov/commenton/FAA-2022-0600-0008","allow_late_comments":false,"id":"FAA-2022-0600-0008","comment_end_date":null,"regulations_dot_gov_open_for_comment":false}],"supporting_documents_count":1,"id":"FAA-2022-0600","title":"AD-2021-01160-R Bell Textron Inc.Model 204B, 205A, 205A-1, 205B, and 210 helicopters; tail boom inspections"}],"document_number":"2024-22908","effective_on":"2024-11-08","end_page":80739,"executive_order_notes":null,"executive_order_number":null,"explanation":null,"full_text_xml_url":"https://www.federalregister.gov/documents/full_text/xml/2024/10/04/2024-22908.xml","html_url":"https://www.federalregister.gov/documents/2024/10/04/2024-22908/airworthiness-directives-bell-textron-inc-helicopters","images":{},"images_metadata":{},"json_url":"https://www.federalregister.gov/api/v1/documents/2024-22908?publication_date=2024-10-04","mods_url":"https://www.govinfo.gov/metadata/granule/FR-2024-10-04/2024-22908/mods.xml","not_received_for_publication":null,"page_length":6,"page_views":{"count":257,"last_updated":"2026-04-04 14:15:05 -0400"},"pdf_url":"https://www.govinfo.gov/content/pkg/FR-2024-10-04/pdf/2024-22908.pdf","presidential_document_number":null,"proclamation_number":null,"public_inspection_pdf_url":"https://public-inspection.federalregister.gov/2024-22908.pdf?1727959522","publication_date":"2024-10-04","raw_text_url":"https://www.federalregister.gov/documents/full_text/text/2024/10/04/2024-22908.txt","regulation_id_number_info":{"2120-AA64":{"issue":"202410","html_url":"https://www.federalregister.gov/regulations/2120-AA64/airworthiness-directives","title":"Airworthiness Directives","xml_url":"http://www.reginfo.gov/public/do/eAgendaViewRule?pubId=202410&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-2022-0600-0009"}],"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-2022-0600","supporting_documents_count":1,"docket_id":"FAA-2022-0600","document_id":"FAA-2022-0600-0008","regulation_id_number":"2120-AA64","title":"AD-2021-01160-R Bell Textron Inc.Model 204B, 205A, 205A-1, 205B, and 210 helicopters; tail boom inspections","checked_regulationsdotgov_at":"2024-10-05T12:00:06Z"},"regulations_dot_gov_url":null,"significant":false,"signing_date":null,"start_page":80734,"subtype":null,"title":"Airworthiness Directives; Bell Textron Inc. Helicopters","toc_doc":"Bell Textron Inc. Helicopters","toc_subject":"Airworthiness Directives","topics":["Air transportation","Aircraft","Aviation safety","Incorporation by reference","Safety"],"type":"Rule","volume":89}