{"abstract":"The FAA is adopting a new airworthiness directive (AD) for all Rolls-Royce Deutschland Ltd. & Co KG (RRD) Trent 7000-72 and Trent 7000-72C model turbofan engines. This AD was prompted by the manufacturer revising the engine Time Limits Manual (TLM) life limits of certain critical rotating parts and updating certain maintenance tasks. This AD requires the operator to revise the airworthiness limitation section (ALS) of their existing approved continuous airworthiness maintenance program (CAMP) by incorporating the revised tasks of the applicable TLM for each affected model turbofan engine, as specified in a European Union Aviation Safety Agency (EASA) AD, which is incorporated by reference. The FAA is 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/2021/12/15/2021-27033.html","cfr_references":[{"chapter":null,"citation_url":null,"part":39,"title":14}],"citation":"86 FR 71135","comment_url":null,"comments_close_on":null,"correction_of":null,"corrections":[],"dates":"This AD is effective January 19, 2022.","disposition_notes":null,"docket_ids":["Docket No. FAA-2021-0655","Project Identifier MCAI-2020-01497-E","Amendment 39-21846","AD 2021-25-03"],"dockets":[],"document_number":"2021-27033","effective_on":"2022-01-19","end_page":71138,"executive_order_notes":null,"executive_order_number":null,"explanation":null,"full_text_xml_url":"https://www.federalregister.gov/documents/full_text/xml/2021/12/15/2021-27033.xml","html_url":"https://www.federalregister.gov/documents/2021/12/15/2021-27033/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/2021-27033?publication_date=2021-12-15","mods_url":"https://www.govinfo.gov/metadata/granule/FR-2021-12-15/2021-27033/mods.xml","not_received_for_publication":null,"page_length":4,"page_views":{"count":158,"last_updated":"2026-04-04 20:15:04 -0400"},"pdf_url":"https://www.govinfo.gov/content/pkg/FR-2021-12-15/pdf/2021-27033.pdf","presidential_document_number":null,"proclamation_number":null,"public_inspection_pdf_url":"https://public-inspection.federalregister.gov/2021-27033.pdf?1639489522","publication_date":"2021-12-15","raw_text_url":"https://www.federalregister.gov/documents/full_text/text/2021/12/15/2021-27033.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-2021-0655-0007"},{"title":"Supporting AD Document","document_id":"FAA-2021-0655-0002"}],"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-2021-0655","supporting_documents_count":2,"docket_id":"FAA-2021-0655","document_id":"FAA-2021-0655-0006","regulation_id_number":"2120-AA64","title":"2021-NM-XXXX","checked_regulationsdotgov_at":"2021-12-16T04:30:10Z"},"regulations_dot_gov_url":null,"significant":false,"signing_date":null,"start_page":71135,"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":"Rule","volume":86}