{"abstract":"This amendment adopts a new airworthiness directive (AD), applicable to certain Boeing Model 767 series airplanes powered by Pratt & Whitney engines, that requires modification of the nacelle strut and wing structure. The actions specified by this AD are intended to prevent fatigue cracking in primary strut structure and consequent reduced structural integrity of the strut.","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/2001/01/29/01-1947.html","cfr_references":[{"chapter":null,"citation_url":null,"part":39,"title":14}],"citation":"66 FR 8085","comment_url":null,"comments_close_on":null,"correction_of":null,"corrections":[],"dates":"Effective March 5, 2001.","disposition_notes":null,"docket_ids":["Docket No. 99-NM-365-AD","Amendment 39-12091","AD 2001-02-07"],"dockets":[],"document_number":"01-1947","effective_on":"2001-03-05","end_page":8089,"executive_order_notes":null,"executive_order_number":null,"explanation":null,"full_text_xml_url":"https://www.federalregister.gov/documents/full_text/xml/2001/01/29/01-1947.xml","html_url":"https://www.federalregister.gov/documents/2001/01/29/01-1947/airworthiness-directives-boeing-model-767-series-airplanes-powered-by-pratt-and-whitney-engines","images":{},"images_metadata":{},"json_url":"https://www.federalregister.gov/api/v1/documents/01-1947?publication_date=2001-01-29","mods_url":"https://www.govinfo.gov/metadata/granule/FR-2001-01-29/01-1947/mods.xml","not_received_for_publication":null,"page_length":5,"page_views":{"count":34,"last_updated":"2026-04-04 12:15:04 -0400"},"pdf_url":"https://www.govinfo.gov/content/pkg/FR-2001-01-29/pdf/01-1947.pdf","presidential_document_number":null,"proclamation_number":null,"public_inspection_pdf_url":null,"publication_date":"2001-01-29","raw_text_url":"https://www.federalregister.gov/documents/full_text/text/2001/01/29/01-1947.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":{"checked_regulationsdotgov_at":"2011-11-12T04:06:30Z"},"regulations_dot_gov_url":null,"significant":false,"signing_date":null,"start_page":8085,"subtype":null,"title":"Airworthiness Directives; Boeing Model 767 Series Airplanes Powered by Pratt & Whitney Engines","toc_doc":"Boeing","toc_subject":"Airworthiness directives:","topics":["Air transportation","Aircraft","Aviation safety","Incorporation by reference","Safety"],"type":"Rule","volume":66}