{"abstract":"The FAA proposes to adopt a new airworthiness directive (AD) for all Pratt & Whitney Division (PW) Model PW4052, PW4056, PW4060, PW4060A, PW4060C, PW4062, PW4062A, PW4152, PW4156, PW4156A, PW4158, PW4460, and PW4462 engines. This proposed AD was prompted by multiple reports of tailpipe fire, loss of thrust control, and engine in-flight shutdown due to undetected deterioration of pressure burner (Pb) sensors. This proposed AD would require replacing Pb sensors. 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/2026/05/26/2026-10408.html","cfr_references":[{"chapter":null,"citation_url":null,"part":"39","title":14}],"citation":"91 FR 30514","comment_url":"http://www.regulations.gov/commenton/FAA-2026-4643-0001","comments_close_on":"2026-07-10","correction_of":null,"corrections":[],"dates":"The FAA must receive comments on this proposed AD by July 10, 2026.","disposition_notes":null,"docket_ids":["Docket No. FAA-2026-4643","Project Identifier AD-2025-01612-E"],"dockets":[{"supporting_documents":[],"agency_name":"FAA","documents":[{"comment_count":0,"comment_start_date":"2026-05-26","updated_at":"2026-05-26T08:59:58.232-04:00","comment_url":"https://www.regulations.gov/commenton/FAA-2026-4643-0001","allow_late_comments":false,"id":"FAA-2026-4643-0001","comment_end_date":"2026-07-11","regulations_dot_gov_open_for_comment":true}],"supporting_documents_count":0,"id":"FAA-2026-4643","title":"2026-NM-XXXX"}],"document_number":"2026-10408","effective_on":null,"end_page":30516,"executive_order_notes":null,"executive_order_number":null,"explanation":null,"full_text_xml_url":"https://www.federalregister.gov/documents/full_text/xml/2026/05/26/2026-10408.xml","html_url":"https://www.federalregister.gov/documents/2026/05/26/2026-10408/airworthiness-directives-pratt-and-whitney-division-engines","images":{},"images_metadata":{},"json_url":"https://www.federalregister.gov/api/v1/documents/2026-10408?publication_date=2026-05-26","mods_url":"https://www.govinfo.gov/metadata/granule/FR-2026-05-26/2026-10408/mods.xml","not_received_for_publication":null,"page_length":3,"page_views":{"count":133,"last_updated":"2026-05-28 12:15:07 -0400"},"pdf_url":"https://www.govinfo.gov/content/pkg/FR-2026-05-26/pdf/2026-10408.pdf","presidential_document_number":null,"proclamation_number":null,"public_inspection_pdf_url":"https://public-inspection.federalregister.gov/2026-10408.pdf?1779453918","publication_date":"2026-05-26","raw_text_url":"https://www.federalregister.gov/documents/full_text/text/2026/05/26/2026-10408.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":{"supporting_documents":[],"regulatory_plan":{"html_url":"https://www.federalregister.gov/regulations/2126-AA64/certification-of-safety-auditors-safety-investigators-and-safety-inspectors","title":"Certification of Safety Auditors, Safety Investigators, and Safety Inspectors"},"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-2026-4643","supporting_documents_count":0,"docket_id":"FAA-2026-4643","document_id":"FAA-2026-4643-0001","regulation_id_number":"2126-AA64","title":"2026-NM-XXXX","checked_regulationsdotgov_at":"2026-05-27T15:55:05Z"},"regulations_dot_gov_url":"http://www.regulations.gov/commenton/FAA-2026-4643-0001","significant":false,"signing_date":null,"start_page":30514,"subtype":null,"title":"Airworthiness Directives; Pratt & Whitney Division Engines","toc_doc":"Pratt and Whitney Division Engines","toc_subject":"Airworthiness Directives","topics":["Air transportation","Aircraft","Aviation safety","Incorporation by reference","Safety"],"type":"Proposed Rule","volume":91}