{"abstract":"The FAA is adopting a new airworthiness directive (AD) that applies to certain Airbus Model A320-111 airplanes and Model A320-200 series airplanes. This AD requires post-maintenance bleeding of accumulated air from, or ground functional testing of, the ram air turbine (RAT) system; modifying and reidentifying the airborne ground check module of the RAT system; and replacing the RAT reducer assembly if applicable. This AD is prompted by reports of unsuccessful in-flight RAT tests during which a deployed RAT failed to pressurize the blue hydraulic circuit of the RAT system. We are issuing this AD to prevent failure of the RAT during an in-flight emergency, which could lead to loss of hydraulic and electrical power and reduced controllability of the airplane.","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/2005/07/21/05-14087.html","cfr_references":[{"chapter":null,"citation_url":null,"part":39,"title":14}],"citation":"70 FR 41946","comment_url":null,"comments_close_on":null,"correction_of":null,"corrections":[],"dates":"This AD becomes effective August 25, 2005.","disposition_notes":null,"docket_ids":["Docket No. FAA-2005-20500","Directorate Identifier 2004-NM-235-AD","Amendment 39-14191","AD 2005-15-02"],"dockets":[],"document_number":"05-14087","effective_on":"2005-08-25","end_page":41948,"executive_order_notes":null,"executive_order_number":null,"explanation":null,"full_text_xml_url":"https://www.federalregister.gov/documents/full_text/xml/2005/07/21/05-14087.xml","html_url":"https://www.federalregister.gov/documents/2005/07/21/05-14087/airworthiness-directives-airbus-model-a320-111-airplanes-and-model-a320-200-series-airplanes","images":{},"images_metadata":{},"json_url":"https://www.federalregister.gov/api/v1/documents/05-14087?publication_date=2005-07-21","mods_url":"https://www.govinfo.gov/metadata/granule/FR-2005-07-21/05-14087/mods.xml","not_received_for_publication":null,"page_length":3,"page_views":{"count":24,"last_updated":"2026-04-04 14:15:05 -0400"},"pdf_url":"https://www.govinfo.gov/content/pkg/FR-2005-07-21/pdf/05-14087.pdf","presidential_document_number":null,"proclamation_number":null,"public_inspection_pdf_url":null,"publication_date":"2005-07-21","raw_text_url":"https://www.federalregister.gov/documents/full_text/text/2005/07/21/05-14087.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":{"checked_regulationsdotgov_at":"2011-11-12T16:53:44Z"},"regulations_dot_gov_url":null,"significant":false,"signing_date":null,"start_page":41946,"subtype":null,"title":"Airworthiness Directives; Airbus Model A320-111 Airplanes and Model A320-200 Series Airplanes","toc_doc":"Airbus","toc_subject":"Airworthiness directives:","topics":["Air transportation","Aircraft","Aviation safety","Incorporation by reference","Safety"],"type":"Rule","volume":70}