{"abstract":"We propose to adopt a new airworthiness directive (AD) for Airbus Helicopters Model AS355NP helicopters with certain fire extinguishing systems. This proposed AD would require removing and installing the fire extinguishing system so that each squib on the engine compartment fire extinguisher is controlled by a matching control button. This proposed AD is prompted by the discovery that the left-hand discharge system of the fire extinguishing system was incorrectly connected to the right-hand engine compartment and the right-hand discharge system was incorrectly connected to the left-hand engine compartment. The proposed actions would correct the connections and would prevent the fire extinguishing system discharging to the wrong engine compartment, failure of the fire extinguishing system to control a fire, and subsequent loss of control of the helicopter.","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/2016/04/12/2016-08247.html","cfr_references":[{"chapter":null,"citation_url":null,"part":39,"title":14}],"citation":"81 FR 21493","comment_url":null,"comments_close_on":"2016-06-13","correction_of":null,"corrections":[],"dates":"We must receive comments on this proposed AD by June 13, 2016.","disposition_notes":null,"docket_ids":["Docket No. FAA-2015-5807","Directorate Identifier 2015-SW-063-AD"],"dockets":[{"supporting_documents":[{"title":"U.S. DOT/FAA - Supporting AD Documents","document_id":"FAA-2015-5807-0005"},{"title":"U.S. DOT/FAA - Supplemental AD Documents","document_id":"FAA-2015-5807-0003"}],"agency_name":"FAA","documents":[{"comment_count":1,"comment_start_date":"2016-04-12","updated_at":"2023-02-28T16:17:17.095-05:00","comment_url":"https://www.regulations.gov/commenton/FAA-2015-5807-0001","allow_late_comments":null,"id":"FAA-2015-5807-0001","comment_end_date":"2016-06-14","regulations_dot_gov_open_for_comment":false}],"supporting_documents_count":2,"id":"FAA-2015-5807","title":"2015-SW-063-AD\n\n"}],"document_number":"2016-08247","effective_on":null,"end_page":21495,"executive_order_notes":null,"executive_order_number":null,"explanation":null,"full_text_xml_url":"https://www.federalregister.gov/documents/full_text/xml/2016/04/12/2016-08247.xml","html_url":"https://www.federalregister.gov/documents/2016/04/12/2016-08247/airworthiness-directives-airbus-helicopters","images":{},"images_metadata":{},"json_url":"https://www.federalregister.gov/api/v1/documents/2016-08247?publication_date=2016-04-12","mods_url":"https://www.govinfo.gov/metadata/granule/FR-2016-04-12/2016-08247/mods.xml","not_received_for_publication":null,"page_length":3,"page_views":{"count":41,"last_updated":"2026-04-04 12:15:04 -0400"},"pdf_url":"https://www.govinfo.gov/content/pkg/FR-2016-04-12/pdf/2016-08247.pdf","presidential_document_number":null,"proclamation_number":null,"public_inspection_pdf_url":"https://public-inspection.federalregister.gov/2016-08247.pdf?1460378719","publication_date":"2016-04-12","raw_text_url":"https://www.federalregister.gov/documents/full_text/text/2016/04/12/2016-08247.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 - Supporting AD Documents","document_id":"FAA-2015-5807-0005"},{"title":"U.S. DOT/FAA - Supplemental AD Documents","document_id":"FAA-2015-5807-0003"}],"regulatory_plan":{"html_url":"https://www.federalregister.gov/regulations/2120-AA64/airworthiness-directives","title":"Airworthiness Directives"},"comments_count":1,"agency_id":"FAA","comments_url":"https://www.regulations.gov/docketBrowser?rpp=50&so=DESC&sb=postedDate&po=0&dct=PS&D=FAA-2015-5807","supporting_documents_count":2,"docket_id":"FAA-2015-5807","document_id":"FAA-2015-5807-0001","regulation_id_number":"2120-AA64","title":"2015-SW-063-AD\n\n","checked_regulationsdotgov_at":"2023-02-28T21:17:16Z"},"regulations_dot_gov_url":null,"significant":false,"signing_date":null,"start_page":21493,"subtype":null,"title":"Airworthiness Directives; Airbus Helicopters","toc_doc":"Airbus Helicopters","toc_subject":"Airworthiness Directives:","topics":["Air transportation","Aircraft","Aviation safety","Incorporation by reference","Safety"],"type":"Proposed Rule","volume":81}