{"abstract":"This document publishes in the Federal Register an amendment adopting Airworthiness Directive (AD) 98-24-03 that was sent previously to all known U.S. owners and operators of BMW Rolls-Royce GmbH (BRR) Models BR700-710A1-10 and BR700-710A2-20 turbofan engines by individual letters. This AD requires repetitive visual inspections of the fairing and fasteners for correct installation and damage, and verification that the engine core fairing fasteners are torqued to the higher torque value. This amendment is prompted by a report of an engine compressor core fairing failure during engine ground runs. The actions specified by this AD are intended to prevent engine compressor or combustion core fairing detachment and damage to the engine bypass duct, resulting in engine failure and damage to the aircraft.","action":"Final rule, request for comments.","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/1999/02/24/99-4368.html","cfr_references":[{"chapter":null,"citation_url":null,"part":"39","title":14}],"citation":"64 FR 9056","comment_url":null,"comments_close_on":null,"correction_of":null,"corrections":[],"dates":"Effective March 11, 1999, to all persons except those persons to whom it was made immediately effective by priority letter AD 98-24-03, issued on November 12, 1998, which contained the requirements of this amendment.","disposition_notes":null,"docket_ids":["Docket No. 98-ANE-74-AD","Amendment 39-11050","AD 98-24-03"],"dockets":[],"document_number":"99-4368","effective_on":"1999-03-11","end_page":9058,"executive_order_notes":null,"executive_order_number":null,"full_text_xml_url":null,"html_url":"https://www.federalregister.gov/documents/1999/02/24/99-4368/airworthiness-directives-bmw-rolls-royce-gmbh-models-br700--710a1-10-and-br700-710a2-20-turbofan","images":{},"images_metadata":{},"json_url":"https://www.federalregister.gov/api/v1/documents/99-4368?publication_date=1999-02-24","mods_url":"https://www.govinfo.gov/metadata/granule/FR-1999-02-24/99-4368/mods.xml","not_received_for_publication":null,"page_length":3,"page_views":{"count":22,"last_updated":"2026-08-24 14:15:12 -0400"},"pdf_url":"https://www.govinfo.gov/content/pkg/FR-1999-02-24/pdf/99-4368.pdf","presidential_document_number":null,"proclamation_number":null,"public_inspection_pdf_url":null,"publication_date":"1999-02-24","raw_text_url":"https://www.federalregister.gov/documents/full_text/text/1999/02/24/99-4368.txt","regulation_id_number_info":{"2120-AA64":{"issue":"202504","html_url":"https://www.federalregister.gov/regulations/2120-AA64/airworthiness-directives","title":"Airworthiness Directives","xml_url":"http://www.reginfo.gov/public/do/eAgendaViewRule?pubId=202504&RIN=2120-AA64&operation=OPERATION_EXPORT_XML","priority_category":"Routine and Frequent"}},"regulation_id_numbers":["2120-AA64"],"regulations_dot_gov_info":{"checked_regulationsdotgov_at":"2011-09-21T00:52:09Z"},"regulations_dot_gov_url":null,"significant":false,"signing_date":null,"start_page":9056,"subtype":null,"title":"Airworthiness Directives; BMW Rolls-Royce GmbH Models BR700- 710A1-10 and BR700-710A2-20 Turbofan Engines","toc_doc":null,"toc_subject":null,"topics":[],"type":"Rule","volume":64}