{"abstract":"We propose to adopt a new airworthiness directive (AD) for certain CFM International S.A. (CFM) CFM56-7B turbofan engines. This proposed AD was prompted by a report of an in-flight fan blade failure and uncontained forward release of debris on a CFM56-7B turbofan engine. This proposed AD would require an ultrasonic inspection (USI) of certain fan blades and, if they fail the inspection, their replacement with parts eligible for installation. We are proposing this AD to correct 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/2017/08/25/2017-17828.html","cfr_references":[{"chapter":null,"citation_url":null,"part":39,"title":14}],"citation":"82 FR 40516","comment_url":"https://www.regulations.gov/commenton/FAA-2017-0313-0001","comments_close_on":"2017-10-10","correction_of":null,"corrections":[],"dates":"We must receive comments on this proposed AD by October 10, 2017.","disposition_notes":null,"docket_ids":["Docket No. FAA-2017-0313","Product Identifier 2017-NE-11-AD"],"dockets":[{"supporting_documents":[{"title":"U.S. DOT/FAA - Supporting AD Documents","document_id":"FAA-2017-0313-0019"}],"agency_name":"FAA","documents":[{"comment_count":17,"comment_start_date":"2017-08-25","updated_at":"2024-11-06T21:46:48.670-05:00","comment_url":"https://www.regulations.gov/commenton/FAA-2017-0313-0001","allow_late_comments":true,"id":"FAA-2017-0313-0001","comment_end_date":"2017-10-11","regulations_dot_gov_open_for_comment":false}],"supporting_documents_count":1,"id":"FAA-2017-0313","title":"CFM International S.A. Turbofan Engines, 2017-NE-11-AD\n\n\n\n"}],"document_number":"2017-17828","effective_on":null,"end_page":40518,"executive_order_notes":null,"executive_order_number":null,"explanation":null,"full_text_xml_url":"https://www.federalregister.gov/documents/full_text/xml/2017/08/25/2017-17828.xml","html_url":"https://www.federalregister.gov/documents/2017/08/25/2017-17828/airworthiness-directives-cfm-international-sa-turbofan-engines","images":{},"images_metadata":{},"json_url":"https://www.federalregister.gov/api/v1/documents/2017-17828?publication_date=2017-08-25","mods_url":"https://www.govinfo.gov/metadata/granule/FR-2017-08-25/2017-17828/mods.xml","not_received_for_publication":null,"page_length":3,"page_views":{"count":6566,"last_updated":"2026-04-04 14:15:05 -0400"},"pdf_url":"https://www.govinfo.gov/content/pkg/FR-2017-08-25/pdf/2017-17828.pdf","presidential_document_number":null,"proclamation_number":null,"public_inspection_pdf_url":"https://public-inspection.federalregister.gov/2017-17828.pdf?1503578724","publication_date":"2017-08-25","raw_text_url":"https://www.federalregister.gov/documents/full_text/text/2017/08/25/2017-17828.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 - Supporting AD Documents","document_id":"FAA-2017-0313-0019"}],"regulatory_plan":{"html_url":"https://www.federalregister.gov/regulations/2120-AA64/airworthiness-directives","title":"Airworthiness Directives"},"comments_count":17,"agency_id":"FAA","comments_url":"https://www.regulations.gov/docketBrowser?rpp=50&so=DESC&sb=postedDate&po=0&dct=PS&D=FAA-2017-0313","supporting_documents_count":1,"docket_id":"FAA-2017-0313","document_id":"FAA-2017-0313-0001","regulation_id_number":"2120-AA64","title":"CFM International S.A. Turbofan Engines, 2017-NE-11-AD\n\n\n\n","checked_regulationsdotgov_at":"2024-11-08T01:00:07Z"},"regulations_dot_gov_url":"https://www.regulations.gov/commenton/FAA-2017-0313-0001","significant":false,"signing_date":null,"start_page":40516,"subtype":null,"title":"Airworthiness Directives; CFM International S.A. Turbofan Engines","toc_doc":"CFM International S.A. Turbofan Engines","toc_subject":"Airworthiness Directives:","topics":["Air transportation","Aircraft","Aviation safety","Incorporation by reference","Safety"],"type":"Proposed Rule","volume":82}