{"abstract":"The FAA proposes to adopt a new airworthiness directive (AD) for certain The Boeing Company Model 737-8, 737-9, and 737-8200 airplanes. This proposed AD was prompted by a determination that a new airworthiness limitation is necessary to require periodic replacement of the oxygen sensor of the nitrogen generation system (NGS). This proposed AD would require revising the existing maintenance or inspection program, as applicable, to incorporate the new airworthiness limitation. 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/2022/11/28/2022-25722.html","cfr_references":[{"chapter":null,"citation_url":null,"part":39,"title":14}],"citation":"87 FR 72902","comment_url":"https://www.regulations.gov/commenton/FAA-2022-1063-0001","comments_close_on":"2023-01-12","correction_of":null,"corrections":[],"dates":"The FAA must receive comments on this proposed AD by January 12, 2023.","disposition_notes":null,"docket_ids":["Docket No. FAA-2022-1063","Project Identifier AD-2021-01339-T"],"dockets":[{"supporting_documents":[{"title":"U.S. DOT/FAA - Supplemental AD Documents","document_id":"FAA-2022-1063-0012"},{"title":"U.S. DOT/FAA - Supplemental AD Documents","document_id":"FAA-2022-1063-0011"},{"title":"AD Supporting Documents","document_id":"FAA-2022-1063-0002"}],"agency_name":"FAA","documents":[{"comment_count":8,"comment_start_date":"2022-11-28","updated_at":"2024-11-13T18:17:56.598-05:00","comment_url":"https://www.regulations.gov/commenton/FAA-2022-1063-0001","allow_late_comments":true,"id":"FAA-2022-1063-0001","comment_end_date":"2023-01-13","regulations_dot_gov_open_for_comment":false}],"supporting_documents_count":3,"id":"FAA-2022-1063","title":"AD‑2021‑01339‑T The Boeing Company Model 737-8, 737-9, and 737-8200 airplanes; AWL change for O2 sensor."}],"document_number":"2022-25722","effective_on":null,"end_page":72904,"executive_order_notes":null,"executive_order_number":null,"explanation":null,"full_text_xml_url":"https://www.federalregister.gov/documents/full_text/xml/2022/11/28/2022-25722.xml","html_url":"https://www.federalregister.gov/documents/2022/11/28/2022-25722/airworthiness-directives-the-boeing-company-airplanes","images":{},"images_metadata":{},"json_url":"https://www.federalregister.gov/api/v1/documents/2022-25722?publication_date=2022-11-28","mods_url":"https://www.govinfo.gov/metadata/granule/FR-2022-11-28/2022-25722/mods.xml","not_received_for_publication":null,"page_length":3,"page_views":{"count":404,"last_updated":"2026-04-04 16:15:04 -0400"},"pdf_url":"https://www.govinfo.gov/content/pkg/FR-2022-11-28/pdf/2022-25722.pdf","presidential_document_number":null,"proclamation_number":null,"public_inspection_pdf_url":"https://public-inspection.federalregister.gov/2022-25722.pdf?1669383930","publication_date":"2022-11-28","raw_text_url":"https://www.federalregister.gov/documents/full_text/text/2022/11/28/2022-25722.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-2022-1063-0012"},{"title":"U.S. DOT/FAA - Supplemental AD Documents","document_id":"FAA-2022-1063-0011"},{"title":"AD Supporting Documents","document_id":"FAA-2022-1063-0002"}],"regulatory_plan":{"html_url":"https://www.federalregister.gov/regulations/2120-AA64/airworthiness-directives","title":"Airworthiness Directives"},"comments_count":8,"agency_id":"FAA","comments_url":"https://www.regulations.gov/docketBrowser?rpp=50&so=DESC&sb=postedDate&po=0&dct=PS&D=FAA-2022-1063","supporting_documents_count":3,"docket_id":"FAA-2022-1063","document_id":"FAA-2022-1063-0001","regulation_id_number":"2120-AA64","title":"AD‑2021‑01339‑T The Boeing Company Model 737-8, 737-9, and 737-8200 airplanes; AWL change for O2 sensor.","checked_regulationsdotgov_at":"2024-11-13T23:00:09Z"},"regulations_dot_gov_url":"https://www.regulations.gov/commenton/FAA-2022-1063-0001","significant":false,"signing_date":null,"start_page":72902,"subtype":null,"title":"Airworthiness Directives; The Boeing Company Airplanes","toc_doc":"The Boeing Company Airplanes","toc_subject":"Airworthiness Directives:\n","topics":["Air transportation","Aircraft","Aviation safety","Incorporation by reference","Safety"],"type":"Proposed Rule","volume":87}