{"abstract":"We are adopting a new airworthiness directive (AD) for certain General Electric Company (GE) CF6-80A, CF6-80A1, CF6-80A2, CF6-80A3, CF6-80C2A1, CF6-80C2A2, CF6-80C2A3, CF6-80C2A5, CF6-80C2A5F, CF6- 80C2A8, CF6-80C2B1, CF6-80C2B1F, CF6-80C2B2, CF6-80C2B2F, CF6-80C2B4, CF6-80C2B4F, CF6-80C2B5F, CF6-80C2B6, CF6-80C2B6F, CF6-80C2B6FA, CF6- 80C2B7F, CF6-80C2D1F, CF6-80C2L1F, and CF6-80C2K1F turbofan engines. This AD was prompted by an uncontained failure of a high-pressure turbine (HPT) stage 2 disk that resulted in a fire. This AD requires ultrasonic inspection (UI) of HPT stage 1 and 2 disks. We are 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/2018/08/28/2018-18576.html","cfr_references":[{"chapter":null,"citation_url":null,"part":39,"title":14}],"citation":"83 FR 43739","comment_url":null,"comments_close_on":null,"correction_of":null,"corrections":[],"dates":"This AD is effective October 2, 2018.","disposition_notes":null,"docket_ids":["Docket No. FAA-2017-0792","Product Identifier 2017-NE-28-AD","Amendment 39-19336","AD 2018-15-04"],"dockets":[{"supporting_documents":[{"title":"Supporting AD Documents","document_id":"FAA-2017-0792-0018"},{"title":"U.S. DOT/FAA - Supporting AD Documents","document_id":"FAA-2017-0792-0010"}],"agency_name":"FAA","documents":[{"comment_count":0,"comment_start_date":"2018-08-28","updated_at":"2023-03-01T14:37:58.822-05:00","comment_url":"https://www.regulations.gov/commenton/FAA-2017-0792-0017","allow_late_comments":null,"id":"FAA-2017-0792-0017","comment_end_date":null,"regulations_dot_gov_open_for_comment":false}],"supporting_documents_count":2,"id":"FAA-2017-0792","title":"2017-NE-28-AD\nAirworthiness Directives; General Electric CF6-80C2 Turbofan Engines"}],"document_number":"2018-18576","effective_on":"2018-10-02","end_page":43742,"executive_order_notes":null,"executive_order_number":null,"explanation":null,"full_text_xml_url":"https://www.federalregister.gov/documents/full_text/xml/2018/08/28/2018-18576.xml","html_url":"https://www.federalregister.gov/documents/2018/08/28/2018-18576/airworthiness-directives-general-electric-company-turbofan-engines","images":{},"images_metadata":{},"json_url":"https://www.federalregister.gov/api/v1/documents/2018-18576?publication_date=2018-08-28","mods_url":"https://www.govinfo.gov/metadata/granule/FR-2018-08-28/2018-18576/mods.xml","not_received_for_publication":null,"page_length":4,"page_views":{"count":921,"last_updated":"2026-04-03 16:15:03 -0400"},"pdf_url":"https://www.govinfo.gov/content/pkg/FR-2018-08-28/pdf/2018-18576.pdf","presidential_document_number":null,"proclamation_number":null,"public_inspection_pdf_url":"https://public-inspection.federalregister.gov/2018-18576.pdf?1535373924","publication_date":"2018-08-28","raw_text_url":"https://www.federalregister.gov/documents/full_text/text/2018/08/28/2018-18576.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":"Supporting AD Documents","document_id":"FAA-2017-0792-0018"},{"title":"U.S. DOT/FAA - Supporting AD Documents","document_id":"FAA-2017-0792-0010"}],"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-2017-0792","supporting_documents_count":2,"docket_id":"FAA-2017-0792","document_id":"FAA-2017-0792-0017","regulation_id_number":"2120-AA64","title":"2017-NE-28-AD\nAirworthiness Directives; General Electric CF6-80C2 Turbofan Engines","checked_regulationsdotgov_at":"2023-03-01T19:37:57Z"},"regulations_dot_gov_url":null,"significant":false,"signing_date":null,"start_page":43739,"subtype":null,"title":"Airworthiness Directives; General Electric Company Turbofan Engines","toc_doc":"General Electric Company Turbofan Engines","toc_subject":"Airworthiness Directives:","topics":["Air transportation","Aircraft","Aviation safety","Incorporation by reference","Safety"],"type":"Rule","volume":83}