{"abstract":"The FAA proposes to adopt a new airworthiness directive (AD) for certain General Electric Company (GE) CF34-8C and CF34-8E model turbofan engines. This proposed AD was prompted by a report of a crack found on the low-pressure turbine (LPT) stage 5 disk at the forward arm area. This proposed AD would require the removal of the affected LPT stage 5 disk and replacement with a part eligible for installation. 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/2022/08/01/2022-16011.html","cfr_references":[{"chapter":null,"citation_url":null,"part":39,"title":14}],"citation":"87 FR 46906","comment_url":null,"comments_close_on":"2022-09-15","correction_of":null,"corrections":[],"dates":"The FAA must receive comments on this proposed AD by September 15, 2022.","disposition_notes":null,"docket_ids":["Docket No. FAA-2022-0977","Project Identifier AD-2022-00419-E"],"dockets":[{"supporting_documents":[],"agency_name":"FAA","documents":[{"comment_count":1,"comment_start_date":"2022-08-01","updated_at":"2023-02-27T22:04:38.002-05:00","comment_url":"https://www.regulations.gov/commenton/FAA-2022-0977-0001","allow_late_comments":null,"id":"FAA-2022-0977-0001","comment_end_date":"2022-09-16","regulations_dot_gov_open_for_comment":false}],"supporting_documents_count":0,"id":"FAA-2022-0977","title":"AD-2022-00419-E General Electric Company CF34-8C/E model engines; Replacement of the Stage 5 LPT disk"}],"document_number":"2022-16011","effective_on":null,"end_page":46908,"executive_order_notes":null,"executive_order_number":null,"explanation":null,"full_text_xml_url":"https://www.federalregister.gov/documents/full_text/xml/2022/08/01/2022-16011.xml","html_url":"https://www.federalregister.gov/documents/2022/08/01/2022-16011/airworthiness-directives-general-electric-company-turbofan-engines","images":{},"images_metadata":{},"json_url":"https://www.federalregister.gov/api/v1/documents/2022-16011?publication_date=2022-08-01","mods_url":"https://www.govinfo.gov/metadata/granule/FR-2022-08-01/2022-16011/mods.xml","not_received_for_publication":null,"page_length":3,"page_views":{"count":240,"last_updated":"2026-04-04 18:15:03 -0400"},"pdf_url":"https://www.govinfo.gov/content/pkg/FR-2022-08-01/pdf/2022-16011.pdf","presidential_document_number":null,"proclamation_number":null,"public_inspection_pdf_url":"https://public-inspection.federalregister.gov/2022-16011.pdf?1659098714","publication_date":"2022-08-01","raw_text_url":"https://www.federalregister.gov/documents/full_text/text/2022/08/01/2022-16011.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":1,"agency_id":"FAA","comments_url":"https://www.regulations.gov/docketBrowser?rpp=50&so=DESC&sb=postedDate&po=0&dct=PS&D=FAA-2022-0977","supporting_documents_count":0,"docket_id":"FAA-2022-0977","document_id":"FAA-2022-0977-0001","regulation_id_number":"2120-AA64","title":"AD-2022-00419-E General Electric Company CF34-8C/E model engines; Replacement of the Stage 5 LPT disk","checked_regulationsdotgov_at":"2023-02-28T03:04:37Z"},"regulations_dot_gov_url":null,"significant":false,"signing_date":null,"start_page":46906,"subtype":null,"title":"Airworthiness Directives; General Electric Company Turbofan Engines","toc_doc":"General Electric Company Turbofan Engines","toc_subject":"Airworthiness Directives:\n","topics":["Air transportation","Aircraft","Aviation safety","Incorporation by reference","Safety"],"type":"Proposed Rule","volume":87}