{"abstract":"The FAA proposes to supersede Airworthiness Directive (AD) 2021-15-01, which applies to all Rolls-Royce Deutschland Ltd & Co KG (RRD) Trent XWB-75, Trent XWB-79, Trent XWB-79B, Trent XWB-84, and Trent XWB-97 model turbofan engines. AD 2021-15-01 requires revisions to the airworthiness limitations section (ALS) of the Rolls-Royce (RR) Trent XWB time limits manual (TLM) and the operator's existing approved aircraft maintenance program (AMP). Since the FAA issued AD 2021-15-01, the manufacturer has revised the TLM life limits and updated mandatory inspection intervals of certain critical rotating parts. This proposed AD would require revisions to the ALS of the RR Trent XWB TLM and the operator's existing approved AMP, as specified in a European Union Aviation Safety Agency (EASA) AD, which is proposed for incorporation by reference (IBR). 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/2022/03/28/2022-06409.html","cfr_references":[{"chapter":null,"citation_url":null,"part":39,"title":14}],"citation":"87 FR 17209","comment_url":null,"comments_close_on":"2022-05-12","correction_of":null,"corrections":[],"dates":"The FAA must receive comments on this proposed AD by May 12, 2022.","disposition_notes":null,"docket_ids":["Docket No. FAA-2022-0296","Project Identifier MCAI-2021-01064-E"],"dockets":[{"supporting_documents":[{"title":"Supporting AD Documents","document_id":"FAA-2022-0296-0008"},{"title":"Supporting AD Document","document_id":"FAA-2022-0296-0002"}],"agency_name":"FAA","documents":[{"comment_count":4,"comment_start_date":"2022-03-28","updated_at":"2023-02-28T17:14:42.308-05:00","comment_url":"https://www.regulations.gov/commenton/FAA-2022-0296-0001","allow_late_comments":null,"id":"FAA-2022-0296-0001","comment_end_date":"2022-05-13","regulations_dot_gov_open_for_comment":false}],"supporting_documents_count":2,"id":"FAA-2022-0296","title":"MCAI-2021-01064-E Rolls-Royce Deutschland Ltd & Co KG Trent XWB-75, Trent XWB-79, Trent XWB-79B, Trent XWB-84, and Trent XWB-97 model turbofan engines; Time Limits Manual / Maintenance Program – Amendment"}],"document_number":"2022-06409","effective_on":null,"end_page":17211,"executive_order_notes":null,"executive_order_number":null,"explanation":null,"full_text_xml_url":"https://www.federalregister.gov/documents/full_text/xml/2022/03/28/2022-06409.xml","html_url":"https://www.federalregister.gov/documents/2022/03/28/2022-06409/airworthiness-directives-rolls-royce-deutschland-ltd-and-co-kg-type-certificate-previously-held-by","images":{},"images_metadata":{},"json_url":"https://www.federalregister.gov/api/v1/documents/2022-06409?publication_date=2022-03-28","mods_url":"https://www.govinfo.gov/metadata/granule/FR-2022-03-28/2022-06409/mods.xml","not_received_for_publication":null,"page_length":3,"page_views":{"count":276,"last_updated":"2026-04-04 10:15:04 -0400"},"pdf_url":"https://www.govinfo.gov/content/pkg/FR-2022-03-28/pdf/2022-06409.pdf","presidential_document_number":null,"proclamation_number":null,"public_inspection_pdf_url":"https://public-inspection.federalregister.gov/2022-06409.pdf?1648212332","publication_date":"2022-03-28","raw_text_url":"https://www.federalregister.gov/documents/full_text/text/2022/03/28/2022-06409.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-2022-0296-0008"},{"title":"Supporting AD Document","document_id":"FAA-2022-0296-0002"}],"regulatory_plan":{"html_url":"https://www.federalregister.gov/regulations/2120-AA64/airworthiness-directives","title":"Airworthiness Directives"},"comments_count":4,"agency_id":"FAA","comments_url":"https://www.regulations.gov/docketBrowser?rpp=50&so=DESC&sb=postedDate&po=0&dct=PS&D=FAA-2022-0296","supporting_documents_count":2,"docket_id":"FAA-2022-0296","document_id":"FAA-2022-0296-0001","regulation_id_number":"2120-AA64","title":"MCAI-2021-01064-E Rolls-Royce Deutschland Ltd & Co KG Trent XWB-75, Trent XWB-79, Trent XWB-79B, Trent XWB-84, and Trent XWB-97 model turbofan engines; Time Limits Manual / Maintenance Program – Amendment","checked_regulationsdotgov_at":"2023-02-28T22:14:41Z"},"regulations_dot_gov_url":null,"significant":false,"signing_date":null,"start_page":17209,"subtype":null,"title":"Airworthiness Directives; Rolls-Royce Deutschland Ltd & Co KG (Type Certificate Previously Held by Rolls-Royce plc) Turbofan Engines","toc_doc":"Rolls-Royce Deutschland Ltd and Co KG (Type Certificate previously held by Rolls-Royce plc) Turbofan Engines","toc_subject":"Airworthiness Directives:\n","topics":["Air transportation","Aircraft","Aviation safety","Incorporation by reference","Safety"],"type":"Proposed Rule","volume":87}