{"abstract":"We are adopting a new airworthiness directive (AD) for certain Honeywell International Inc. air data pressure transducers as installed on various aircraft. This AD requires various tests or checks of equipment having certain air data pressure transducers, and removal of equipment if necessary. As an option to the tests or checks, this AD allows removal of affected equipment having certain air data pressure transducers. This AD was prompted by a report of a pressure measurement error in the pressure transducer used in various air data systems, which translates into air data parameter errors. We are issuing this AD to detect and correct inaccuracies of the pressure sensors, which could result in altitude, computed airspeed, true airspeed, and Mach computation errors. These errors could reduce the ability of the flightcrew to maintain the safe flight of the aircraft and could result in consequent loss of control of the aircraft.","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/2013/01/09/2012-31587.html","cfr_references":[{"chapter":null,"citation_url":null,"part":39,"title":14}],"citation":"78 FR 1735","comment_url":null,"comments_close_on":null,"correction_of":null,"corrections":[],"dates":"This AD is effective January 24, 2013.","disposition_notes":null,"docket_ids":["Docket No. FAA-2012-1315","Directorate Identifier 2012-NM-191-AD","Amendment 39-17310","AD 2012-26-15"],"dockets":[],"document_number":"2012-31587","effective_on":"2013-01-24","end_page":1739,"executive_order_notes":null,"executive_order_number":null,"explanation":null,"full_text_xml_url":"https://www.federalregister.gov/documents/full_text/xml/2013/01/09/2012-31587.xml","html_url":"https://www.federalregister.gov/documents/2013/01/09/2012-31587/airworthiness-directives-honeywell-international-inc-air-data-pressure-transducers","images":{},"images_metadata":{},"json_url":"https://www.federalregister.gov/api/v1/documents/2012-31587?publication_date=2013-01-09","mods_url":"https://www.govinfo.gov/metadata/granule/FR-2013-01-09/2012-31587/mods.xml","not_received_for_publication":null,"page_length":5,"page_views":{"count":935,"last_updated":"2026-04-04 16:15:04 -0400"},"pdf_url":"https://www.govinfo.gov/content/pkg/FR-2013-01-09/pdf/2012-31587.pdf","presidential_document_number":null,"proclamation_number":null,"public_inspection_pdf_url":"https://public-inspection.federalregister.gov/2012-31587.pdf?1357653212","publication_date":"2013-01-09","raw_text_url":"https://www.federalregister.gov/documents/full_text/text/2013/01/09/2012-31587.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 - See Attachments","document_id":"FAA-2012-1315-0002"}],"regulatory_plan":{"html_url":"https://www.federalregister.gov/regulations/2120-AA64/airworthiness-directives","title":"Airworthiness Directives"},"comments_url":"https://www.regulations.gov/docketBrowser?rpp=50&so=DESC&sb=postedDate&po=0&dct=PS&D=FAA-2012-1315","supporting_documents_count":1,"docket_id":"FAA-2012-1315","regulation_id_number":"2120-AA64","title":"2012-NM-191-AD Honeywell International Inc. air data pressure transducers as installed on various aircraft","checked_regulationsdotgov_at":"2013-02-20T05:00:17Z"},"regulations_dot_gov_url":null,"significant":false,"signing_date":null,"start_page":1735,"subtype":null,"title":"Airworthiness Directives; Honeywell International Inc. Air Data Pressure Transducers","toc_doc":"Honeywell International Inc. Air Data Pressure Transducers","toc_subject":"Airworthiness Directives:","topics":["Air transportation","Aircraft","Aviation safety","Incorporation by reference","Safety"],"type":"Rule","volume":78}