{"abstract":"The FAA proposes to adopt a new airworthiness directive (AD) for certain The Boeing Company Model 757-200 and -300 series airplanes. This proposed AD was prompted by cracking found during an inspection on an airplane equipped with Aviation Partners Boeing (APB) scimitar blended winglets (SBWs). This proposed AD would require performing a general visual inspection (GVI) or maintenance records check of certain stringers for an approved freeze plug repair, performing a high frequency eddy current (HFEC) inspection of the same area for any crack common to a certain stringer and a reinforcement strap, and applicable on-condition actions. The FAA is proposing this AD to address the unsafe condition on these products.","action":"Notice of proposed rulemaking (NPRM).","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/2025/05/05/2025-07724.html","cfr_references":[{"chapter":null,"citation_url":null,"part":39,"title":14}],"citation":"90 FR 18930","comment_url":null,"comments_close_on":"2025-06-20","correction_of":null,"corrections":[],"dates":"The FAA must receive comments on this proposed AD by June 20, 2025.","disposition_notes":null,"docket_ids":["Docket No. FAA-2025-0744","Project Identifier AD-2024-00586-T"],"dockets":[{"supporting_documents":[{"title":"U.S. DOT/FAA - Supplemental AD Documents","document_id":"FAA-2025-0744-0002"}],"agency_name":"FAA","documents":[{"comment_count":4,"comment_start_date":"2025-05-05","updated_at":"2025-06-21T01:56:25.866-04:00","comment_url":"https://www.regulations.gov/commenton/FAA-2025-0744-0001","allow_late_comments":false,"id":"FAA-2025-0744-0001","comment_end_date":"2025-06-21","regulations_dot_gov_open_for_comment":false}],"supporting_documents_count":1,"id":"FAA-2025-0744","title":"AD-2024-00586-T; The Boeing Company 757-200 Series; 757-300 Series airplanes; Inspection of the Right and Left Wing at the Lower Skin, Stringer 8, Vertical Flange with Blended and Scimitar Winglets installed"}],"document_number":"2025-07724","effective_on":null,"end_page":18932,"executive_order_notes":null,"executive_order_number":null,"explanation":null,"full_text_xml_url":"https://www.federalregister.gov/documents/full_text/xml/2025/05/05/2025-07724.xml","html_url":"https://www.federalregister.gov/documents/2025/05/05/2025-07724/airworthiness-directives-the-boeing-company-airplanes","images":{},"images_metadata":{},"json_url":"https://www.federalregister.gov/api/v1/documents/2025-07724?publication_date=2025-05-05","mods_url":"https://www.govinfo.gov/metadata/granule/FR-2025-05-05/2025-07724/mods.xml","not_received_for_publication":null,"page_length":3,"page_views":{"count":254,"last_updated":"2026-04-04 18:15:03 -0400"},"pdf_url":"https://www.govinfo.gov/content/pkg/FR-2025-05-05/pdf/2025-07724.pdf","presidential_document_number":null,"proclamation_number":null,"public_inspection_pdf_url":"https://public-inspection.federalregister.gov/2025-07724.pdf?1746189935","publication_date":"2025-05-05","raw_text_url":"https://www.federalregister.gov/documents/full_text/text/2025/05/05/2025-07724.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-2025-0744-0002"}],"regulatory_plan":{"html_url":"https://www.federalregister.gov/regulations/2120-AA64/airworthiness-directives","title":"Airworthiness Directives"},"comments_count":4,"agency_id":"FAA","comments_url":"https://www.regulations.gov/docketBrowser?rpp=50&so=DESC&sb=postedDate&po=0&dct=PS&D=FAA-2025-0744","supporting_documents_count":1,"docket_id":"FAA-2025-0744","document_id":"FAA-2025-0744-0001","regulation_id_number":"2120-AA64","title":"AD-2024-00586-T; The Boeing Company 757-200 Series; 757-300 Series airplanes; Inspection of the Right and Left Wing at the Lower Skin, Stringer 8, Vertical Flange with Blended and Scimitar Winglets installed","checked_regulationsdotgov_at":"2025-06-22T08:55:05Z"},"regulations_dot_gov_url":null,"significant":false,"signing_date":null,"start_page":18930,"subtype":null,"title":"Airworthiness Directives; The Boeing Company Airplanes","toc_doc":"The Boeing Company Airplanes","toc_subject":"Airworthiness Directives","topics":["Air transportation","Aircraft","Aviation safety","Incorporation by reference","Safety"],"type":"Proposed Rule","volume":90}