{"abstract":"This amendment adopts a new airworthiness directive (AD) that is applicable to Pratt & Whitney Canada (PWC) PW500 series turbofan engines. This action requires a one-time visual inspection and re- marking, or in lieu of inspection, replacement of certain part numbers (P/N's) of the flexible fuel tube located between the fuel/oil heat exchanger and the integral fuel control unit-fuel pump. This amendment is prompted by reports of fuel found dripping from engine nacelles caused by leaking flexible fuel tubes. The actions specified in this AD are intended to prevent a fire in the engine nacelle.","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/2003/02/05/03-2632.html","cfr_references":[{"chapter":null,"citation_url":null,"part":39,"title":14}],"citation":"68 FR 5818","comment_url":null,"comments_close_on":null,"correction_of":null,"corrections":[],"dates":"Effective February 20, 2003. The incorporation by reference of certain publications listed in the rule is approved by the Director of the Federal Register as of February 20, 2003.","disposition_notes":null,"docket_ids":["Docket No. 2002-NE-45-AD","Amendment 39-13046","AD 2003-03-21"],"dockets":[],"document_number":"03-2632","effective_on":"2003-02-20","end_page":5819,"executive_order_notes":null,"executive_order_number":null,"full_text_xml_url":"https://www.federalregister.gov/documents/full_text/xml/2003/02/05/03-2632.xml","html_url":"https://www.federalregister.gov/documents/2003/02/05/03-2632/airworthiness-directives-pratt-and-whitney-canada-pw500-series-turbofan-engines","images":{},"images_metadata":{},"json_url":"https://www.federalregister.gov/api/v1/documents/03-2632?publication_date=2003-02-05","mods_url":"https://www.govinfo.gov/metadata/granule/FR-2003-02-05/03-2632/mods.xml","not_received_for_publication":null,"page_length":2,"page_views":{"count":666,"last_updated":"2026-08-24 02:15:07 -0400"},"pdf_url":"https://www.govinfo.gov/content/pkg/FR-2003-02-05/pdf/03-2632.pdf","presidential_document_number":null,"proclamation_number":null,"public_inspection_pdf_url":null,"publication_date":"2003-02-05","raw_text_url":"https://www.federalregister.gov/documents/full_text/text/2003/02/05/03-2632.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":"2011-11-12T08:29:22Z"},"regulations_dot_gov_url":null,"significant":false,"signing_date":null,"start_page":5818,"subtype":null,"title":"Airworthiness Directives; Pratt & Whitney Canada PW500 Series Turbofan Engines","toc_doc":"Pratt  Whitney Canada","toc_subject":"Airworthiness directives:","topics":["Air transportation","Aircraft","Aviation safety","Incorporation by reference","Safety"],"type":"Rule","volume":68}