{"abstract":"The FAA is superseding Airworthiness Directive (AD) 2021-22-12 for certain Honda Aircraft Company LLC (Honda) Model HA-420 airplanes. AD 2021-22-12 required removing and cleaning the inner diameter of the flap control pushrod assemblies and repetitively applying corrosion inhibiting compound (CIC) to this area. Since the FAA issued AD 2021- 22-12, new flap control pushrods have been approved that are more corrosion resistant and do not require repetitive CIC applications. In addition, referenced service material has been updated to a new revision that includes redesigned replacement flap control pushrod assemblies that have been modified to prevent interference with adjacent parts. This AD retains the requirements of AD 2021-22-12 and requires replacing the flap control pushrod assemblies with improved design pushrod assemblies for all airplanes affected by AD 2021-22-12, as well as for other airplanes not affected by AD 2021-22-12. 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/2026/04/03/2026-06527.html","cfr_references":[{"chapter":null,"citation_url":null,"part":39,"title":14}],"citation":"91 FR 16821","comment_url":null,"comments_close_on":null,"correction_of":null,"corrections":[],"dates":"This AD is effective May 8, 2026.","disposition_notes":null,"docket_ids":["Docket No. FAA-2025-0485","Project Identifier AD-2024-00670-A","Amendment 39-23293","AD 2026-06-71"],"dockets":[{"supporting_documents":[],"agency_name":"FAA","documents":[{"comment_count":0,"comment_start_date":"2026-04-03","updated_at":"2026-04-03T10:02:25.038-04:00","comment_url":"https://www.regulations.gov/commenton/FAA-2025-0485-0004","allow_late_comments":false,"id":"FAA-2025-0485-0004","comment_end_date":null,"regulations_dot_gov_open_for_comment":false}],"supporting_documents_count":0,"id":"FAA-2025-0485","title":"AD-2024-00670-A; Honda Aircraft Company LLC Airplanes; Removal and replacement of current flap control pushrods with new corrosion resistant flap control pushrods."}],"document_number":"2026-06527","effective_on":"2026-05-08","end_page":16824,"executive_order_notes":null,"executive_order_number":null,"explanation":null,"full_text_xml_url":"https://www.federalregister.gov/documents/full_text/xml/2026/04/03/2026-06527.xml","html_url":"https://www.federalregister.gov/documents/2026/04/03/2026-06527/airworthiness-directives-honda-aircraft-company-llc-airplanes","images":{},"images_metadata":{},"json_url":"https://www.federalregister.gov/api/v1/documents/2026-06527?publication_date=2026-04-03","mods_url":"https://www.govinfo.gov/metadata/granule/FR-2026-04-03/2026-06527/mods.xml","not_received_for_publication":null,"page_length":4,"page_views":{"count":37,"last_updated":"2026-04-03 14:15:03 -0400"},"pdf_url":"https://www.govinfo.gov/content/pkg/FR-2026-04-03/pdf/2026-06527.pdf","presidential_document_number":null,"proclamation_number":null,"public_inspection_pdf_url":"https://public-inspection.federalregister.gov/2026-06527.pdf?1775133914","publication_date":"2026-04-03","raw_text_url":"https://www.federalregister.gov/documents/full_text/text/2026/04/03/2026-06527.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":[],"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-2025-0485","supporting_documents_count":0,"docket_id":"FAA-2025-0485","document_id":"FAA-2025-0485-0004","regulation_id_number":"2120-AA64","title":"AD-2024-00670-A; Honda Aircraft Company LLC Airplanes; Removal and replacement of current flap control pushrods with new corrosion resistant flap control pushrods.","checked_regulationsdotgov_at":"2026-04-03T17:55:03Z"},"regulations_dot_gov_url":null,"significant":false,"signing_date":null,"start_page":16821,"subtype":null,"title":"Airworthiness Directives; Honda Aircraft Company LLC Airplanes","toc_doc":"Honda Aircraft Company LLC Airplanes","toc_subject":"Airworthiness Directives","topics":["Air transportation","Aircraft","Aviation safety","Incorporation by reference","Safety"],"type":"Rule","volume":91}