{"abstract":"The FAA proposes to adopt a new airworthiness directive (AD) for all General Electric Company (GE) GEnx-1B64, 1B64/P1, -1B64/P2, - 1B67, -1B67/P1, -1B67P2, -1B70, -1B70/75/P1, -1B70/75/P2, -1B70/P1, - 1B70/P2, -1B70C/P1, -1B70C/P2, -1B74/75/P1, -1B74/75/P2, -1B76/P2, and -1B76A/P2 model turbofan engines. This proposed AD was prompted by reports of combustor case burn-through. This proposed AD would require installation of electronic engine control (EEC) software, version B205 or later. 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/2020/05/06/2020-09437.html","cfr_references":[{"chapter":null,"citation_url":null,"part":39,"title":14}],"citation":"85 FR 26891","comment_url":null,"comments_close_on":"2020-06-22","correction_of":null,"corrections":[],"dates":"The FAA must receive comments on this proposed AD by June 22, 2020.","disposition_notes":null,"docket_ids":["Docket No. FAA-2020-0443","Project Identifier AD-2020-00178-E"],"dockets":[{"supporting_documents":[],"agency_name":"FAA","documents":[{"comment_count":6,"comment_start_date":"2020-05-06","updated_at":"2023-03-01T00:22:36.975-05:00","comment_url":"https://www.regulations.gov/commenton/FAA-2020-0443-0001","allow_late_comments":null,"id":"FAA-2020-0443-0001","comment_end_date":"2020-06-23","regulations_dot_gov_open_for_comment":false}],"supporting_documents_count":0,"id":"FAA-2020-0443","title":"General Electric Turbofan Engines\tAD-2020-00178-E\n\n"}],"document_number":"2020-09437","effective_on":null,"end_page":26893,"executive_order_notes":null,"executive_order_number":null,"explanation":null,"full_text_xml_url":"https://www.federalregister.gov/documents/full_text/xml/2020/05/06/2020-09437.xml","html_url":"https://www.federalregister.gov/documents/2020/05/06/2020-09437/airworthiness-directives-general-electric-company-turbofan-engines","images":{},"images_metadata":{},"json_url":"https://www.federalregister.gov/api/v1/documents/2020-09437?publication_date=2020-05-06","mods_url":"https://www.govinfo.gov/metadata/granule/FR-2020-05-06/2020-09437/mods.xml","not_received_for_publication":null,"page_length":3,"page_views":{"count":298,"last_updated":"2026-04-04 20:15:04 -0400"},"pdf_url":"https://www.govinfo.gov/content/pkg/FR-2020-05-06/pdf/2020-09437.pdf","presidential_document_number":null,"proclamation_number":null,"public_inspection_pdf_url":"https://public-inspection.federalregister.gov/2020-09437.pdf?1588682732","publication_date":"2020-05-06","raw_text_url":"https://www.federalregister.gov/documents/full_text/text/2020/05/06/2020-09437.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":[],"regulatory_plan":{"html_url":"https://www.federalregister.gov/regulations/2120-AA64/airworthiness-directives","title":"Airworthiness Directives"},"comments_count":6,"agency_id":"FAA","comments_url":"https://www.regulations.gov/docketBrowser?rpp=50&so=DESC&sb=postedDate&po=0&dct=PS&D=FAA-2020-0443","supporting_documents_count":0,"docket_id":"FAA-2020-0443","document_id":"FAA-2020-0443-0001","regulation_id_number":"2120-AA64","title":"General Electric Turbofan Engines\tAD-2020-00178-E\n\n","checked_regulationsdotgov_at":"2023-03-01T05:22:36Z"},"regulations_dot_gov_url":null,"significant":false,"signing_date":null,"start_page":26891,"subtype":null,"title":"Airworthiness Directives; General Electric Company Turbofan Engines","toc_doc":null,"toc_subject":null,"topics":["Air transportation","Aircraft","Aviation safety","Incorporation by reference","Safety"],"type":"Proposed Rule","volume":85}