{"abstract":"The FAA is adopting a new airworthiness directive (AD) for certain Pilatus Aircraft Ltd. (Pilatus) Model PC-12, PC-12/45, PC-12/ 47, and PC-12/47E airplanes. This AD is prompted by mandatory continuing airworthiness information (MCAI) originated by an aviation authority of another country to identify and correct an unsafe condition on an aviation product. The MCAI identifies the unsafe condition as insufficient grounding of the vapor cycle cooling system (VCCS) compressor/condenser. This AD requires inspecting the power return and chassis grounding cable attachment points at frame 37, including the attachment parts, and depending on the inspection results, corrective action. This AD also requires modifying the installation of the VCCS compressor/condenser power return cables and installing an additional isolated VCCS chassis ground cable. 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/2023/05/31/2023-11447.html","cfr_references":[{"chapter":null,"citation_url":null,"part":39,"title":14}],"citation":"88 FR 34745","comment_url":null,"comments_close_on":null,"correction_of":null,"corrections":[],"dates":"This AD is effective July 5, 2023.","disposition_notes":null,"docket_ids":["Docket No. FAA-2023-0421","Project Identifier MCAI-2022-01360-A","Amendment 39-22435","AD 2023-09-12"],"dockets":[{"supporting_documents":[{"title":"U.S. DOT/FAA - Supplemental AD Documents","document_id":"FAA-2023-0421-0006"},{"title":"U.S. DOT/FAA - Supplemental AD Documents","document_id":"FAA-2023-0421-0002"}],"agency_name":"FAA","documents":[{"comment_count":0,"comment_start_date":"2023-05-31","updated_at":"2023-05-31T11:03:01.269-04:00","comment_url":"https://www.regulations.gov/commenton/FAA-2023-0421-0005","allow_late_comments":null,"id":"FAA-2023-0421-0005","comment_end_date":null,"regulations_dot_gov_open_for_comment":false}],"supporting_documents_count":2,"id":"FAA-2023-0421","title":"MCAI-2022-01360-A; Pilatus Aircraft Ltd. Model PC-12 airplanes; Air Conditioning – Vapour Cycle Cooling System / Compressor Condenser Cables – Inspection / Modification"}],"document_number":"2023-11447","effective_on":"2023-07-05","end_page":34747,"executive_order_notes":null,"executive_order_number":null,"explanation":null,"full_text_xml_url":"https://www.federalregister.gov/documents/full_text/xml/2023/05/31/2023-11447.xml","html_url":"https://www.federalregister.gov/documents/2023/05/31/2023-11447/airworthiness-directives-pilatus-aircraft-ltd-airplanes","images":{},"images_metadata":{},"json_url":"https://www.federalregister.gov/api/v1/documents/2023-11447?publication_date=2023-05-31","mods_url":"https://www.govinfo.gov/metadata/granule/FR-2023-05-31/2023-11447/mods.xml","not_received_for_publication":null,"page_length":3,"page_views":{"count":361,"last_updated":"2026-04-04 12:15:04 -0400"},"pdf_url":"https://www.govinfo.gov/content/pkg/FR-2023-05-31/pdf/2023-11447.pdf","presidential_document_number":null,"proclamation_number":null,"public_inspection_pdf_url":"https://public-inspection.federalregister.gov/2023-11447.pdf?1685450724","publication_date":"2023-05-31","raw_text_url":"https://www.federalregister.gov/documents/full_text/text/2023/05/31/2023-11447.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 Documents","document_id":"FAA-2023-0421-0006"},{"title":"U.S. DOT/FAA - Supplemental AD Documents","document_id":"FAA-2023-0421-0002"}],"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-2023-0421","supporting_documents_count":2,"docket_id":"FAA-2023-0421","document_id":"FAA-2023-0421-0005","regulation_id_number":"2120-AA64","title":"MCAI-2022-01360-A; Pilatus Aircraft Ltd. Model PC-12 airplanes; Air Conditioning – Vapour Cycle Cooling System / Compressor Condenser Cables – Inspection / Modification","checked_regulationsdotgov_at":"2023-06-01T12:00:17Z"},"regulations_dot_gov_url":null,"significant":false,"signing_date":null,"start_page":34745,"subtype":null,"title":"Airworthiness Directives; Pilatus Aircraft Ltd. Airplanes","toc_doc":"Pilatus Aircraft Ltd. Airplanes","toc_subject":"Airworthiness Directives:\n","topics":["Air transportation","Aircraft","Aviation safety","Incorporation by reference","Safety"],"type":"Rule","volume":88}