{"abstract":"The FAA is adopting a new airworthiness directive (AD) for all Pratt & Whitney (PW) PW1519G, PW1521G, PW1521G-3, PW1521GA, PW1524G, PW1524G-3, PW1525G, and PW1525G-3 model turbofan engines. This AD was prompted by an uncommanded dual engine shutdown upon landing, resulting in compromised braking capability due to the loss of engine power and hydraulic systems. This AD requires removal from service of certain electronic engine control (EEC) full authority digital engine control (FADEC) software versions and replacement with updated software. 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/2022/12/27/2022-28091.html","cfr_references":[{"chapter":null,"citation_url":null,"part":39,"title":14}],"citation":"87 FR 79235","comment_url":null,"comments_close_on":null,"correction_of":null,"corrections":[],"dates":"This AD is effective January 31, 2023.","disposition_notes":null,"docket_ids":["Docket No. FAA-2022-1306","Project Identifier AD-2022-01040-E","Amendment 39-22289","AD 2022-27-04"],"dockets":[{"supporting_documents":[{"title":"U.S. DOT/FAA - Supplemental AD Document (CAA New Zealand Emergency AD DCA FBA 5)","document_id":"FAA-2022-1306-0002"}],"agency_name":"FAA","documents":[{"comment_count":0,"comment_start_date":"2022-12-27","updated_at":"2023-02-27T20:59:49.403-05:00","comment_url":"https://www.regulations.gov/commenton/FAA-2022-1306-0004","allow_late_comments":null,"id":"FAA-2022-1306-0004","comment_end_date":null,"regulations_dot_gov_open_for_comment":false}],"supporting_documents_count":1,"id":"FAA-2022-1306","title":"AD-2022-01040-E  Pratt & Whitney PW1519G, PW1521G, PW1521G-3, PW1521GA, PW1524G, PW1524G-3, PW1525G, and PW1525G-3 model turbofan engines; Electronic Engine Control FADEC software update"}],"document_number":"2022-28091","effective_on":"2023-01-31","end_page":79236,"executive_order_notes":null,"executive_order_number":null,"explanation":null,"full_text_xml_url":"https://www.federalregister.gov/documents/full_text/xml/2022/12/27/2022-28091.xml","html_url":"https://www.federalregister.gov/documents/2022/12/27/2022-28091/airworthiness-directives-pratt-and-whitney-turbofan-engines","images":{},"images_metadata":{},"json_url":"https://www.federalregister.gov/api/v1/documents/2022-28091?publication_date=2022-12-27","mods_url":"https://www.govinfo.gov/metadata/granule/FR-2022-12-27/2022-28091/mods.xml","not_received_for_publication":null,"page_length":2,"page_views":{"count":553,"last_updated":"2026-04-04 16:15:04 -0400"},"pdf_url":"https://www.govinfo.gov/content/pkg/FR-2022-12-27/pdf/2022-28091.pdf","presidential_document_number":null,"proclamation_number":null,"public_inspection_pdf_url":"https://public-inspection.federalregister.gov/2022-28091.pdf?1671803134","publication_date":"2022-12-27","raw_text_url":"https://www.federalregister.gov/documents/full_text/text/2022/12/27/2022-28091.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":"U.S. DOT/FAA - Supplemental AD Document (CAA New Zealand Emergency AD DCA FBA 5)","document_id":"FAA-2022-1306-0002"}],"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-2022-1306","supporting_documents_count":1,"docket_id":"FAA-2022-1306","document_id":"FAA-2022-1306-0004","regulation_id_number":"2120-AA64","title":"AD-2022-01040-E  Pratt & Whitney PW1519G, PW1521G, PW1521G-3, PW1521GA, PW1524G, PW1524G-3, PW1525G, and PW1525G-3 model turbofan engines; Electronic Engine Control FADEC software update","checked_regulationsdotgov_at":"2023-02-28T01:59:48Z"},"regulations_dot_gov_url":null,"significant":false,"signing_date":null,"start_page":79235,"subtype":null,"title":"Airworthiness Directives; Pratt & Whitney Turbofan Engines","toc_doc":"Pratt and Whitney Turbofan Engines","toc_subject":"Airworthiness Directives:\n","topics":["Air transportation","Aircraft","Aviation safety","Incorporation by reference","Safety"],"type":"Rule","volume":87}