{"abstract":"We are adopting a new airworthiness directive (AD) for the products listed above. This AD results from mandatory continuing airworthiness information (MCAI) issued by an aviation authority of another country to identify and correct an unsafe condition on an aviation product. The MCAI describes the unsafe condition as:","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/2010/08/26/2010-21331.html","cfr_references":[{"chapter":null,"citation_url":null,"part":39,"title":14}],"citation":"75 FR 52435","comment_url":null,"comments_close_on":null,"correction_of":null,"corrections":[],"dates":"This AD becomes effective September 10, 2010.","disposition_notes":null,"docket_ids":["Docket No. FAA-2010-0860","Directorate Identifier 2010-NE-28-AD","Amendment 39-16422","AD 2010-18-09"],"dockets":[],"document_number":"2010-21331","effective_on":"2010-09-10","end_page":52437,"executive_order_notes":null,"executive_order_number":null,"full_text_xml_url":"https://www.federalregister.gov/documents/full_text/xml/2010/08/26/2010-21331.xml","html_url":"https://www.federalregister.gov/documents/2010/08/26/2010-21331/airworthiness-directives-pratt-and-whitney-canada-pandwc-pw530a-pw545a-and-pw545b-turbofan-engines","images":{},"images_metadata":{},"json_url":"https://www.federalregister.gov/api/v1/documents/2010-21331?publication_date=2010-08-26","mods_url":"https://www.govinfo.gov/metadata/granule/FR-2010-08-26/2010-21331/mods.xml","not_received_for_publication":null,"page_length":3,"page_views":{"count":1484,"last_updated":"2026-08-24 18:15:04 -0400"},"pdf_url":"https://www.govinfo.gov/content/pkg/FR-2010-08-26/pdf/2010-21331.pdf","presidential_document_number":null,"proclamation_number":null,"public_inspection_pdf_url":null,"publication_date":"2010-08-26","raw_text_url":"https://www.federalregister.gov/documents/full_text/text/2010/08/26/2010-21331.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":"2010-09-15T11:21:02Z"},"regulations_dot_gov_url":null,"significant":false,"signing_date":null,"start_page":52435,"subtype":null,"title":"Airworthiness Directives; Pratt & Whitney Canada (P&WC) PW530A, PW545A, and PW545B Turbofan Engines","toc_doc":"Pratt and Whitney Canada PW530A, PW545A, and PW545B Turbofan Engines","toc_subject":"Airworthiness Directives:","topics":["Air transportation","Aircraft","Aviation safety","Incorporation by reference","Safety"],"type":"Rule","volume":75}