{"id":73649,"date":"2025-11-16T12:10:16","date_gmt":"2025-11-16T06:40:16","guid":{"rendered":"https:\/\/vajiramandravi.com\/current-affairs\/?p=73649"},"modified":"2025-11-17T11:52:24","modified_gmt":"2025-11-17T06:22:24","slug":"delhi-airport-amss-failure-why-the-system-crashed-and-how-india-plans-to-upgrade-atc","status":"publish","type":"post","link":"https:\/\/vajiramandravi.com\/current-affairs\/delhi-airport-amss-failure-why-the-system-crashed-and-how-india-plans-to-upgrade-atc\/","title":{"rendered":"Delhi Airport AMSS Failure: Why the System Crashed and How India Plans to Upgrade ATC"},"content":{"rendered":"<h2><b>AMSS Failure Latest News<\/b><\/h2>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Recently, air traffic operations at Delhi\u2019s IGI Airport were disrupted due to a technical failure in the <\/span><b>Automatic Message Switching System (AMSS)<\/b><span style=\"font-weight: 400;\">. The outage lasted for more than 24 hours before the system was restored.\u00a0<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Following the incident, the Civil Aviation Ministry has reportedly directed the Airports Authority of India to upgrade the system.<\/span><\/li>\n<\/ul>\n<h2><b>AMSS Failure Disrupted Delhi\u2019s Air Traffic Operations<\/b><\/h2>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">The Air Traffic Controllers\u2019 Guild highlighted that the AMSS failure forced controllers to manually manage <\/span><b>over 2,500 aircraft movements daily<\/b><span style=\"font-weight: 400;\">, including <\/span><b>1,500 scheduled flights<\/b><span style=\"font-weight: 400;\"> and <\/span><b>1,000 overflights<\/b><span style=\"font-weight: 400;\"> across Indian airspace.\u00a0<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Since ATC automation depends on the <\/span><b>Flight Data Processing System (FDPS)<\/b><span style=\"font-weight: 400;\"> \u2014 which is fed by the AMSS \u2014 the outage meant critical data such as <\/span><b>flight plans<\/b><span style=\"font-weight: 400;\"> could not be accessed.<\/span><\/li>\n<\/ul>\n<h2><b>AMSS and Air Traffic Management<\/b><\/h2>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">AMSS is the <\/span><b>core communication backbone<\/b><span style=\"font-weight: 400;\"> for Air Traffic Control (ATC) centres in Delhi, Mumbai, Chennai and Kolkata.\u00a0<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">It automatically receives, stores and forwards all aeronautical messages through Aeronautical Fixed Telecommunications Network (AFTN)<\/span> <span style=\"font-weight: 400;\">and Aeronautical Message Handling System (AMHS) networks.<\/span>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"2\"><span style=\"font-weight: 400;\">AFTN and AMHS are\u00a0two systems for transmitting vital aeronautical information, with AMHS being the modern, more advanced successor to AFTN.<\/span><\/li>\n<\/ul>\n<\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">These include:<\/span>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"2\"><span style=\"font-weight: 400;\">Flight plans<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"2\"><span style=\"font-weight: 400;\">Departure and arrival messages<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"2\"><span style=\"font-weight: 400;\">Delay and cancellation updates<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"2\"><span style=\"font-weight: 400;\">Meteorological data<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"2\"><span style=\"font-weight: 400;\">NOTAMs<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"2\"><span style=\"font-weight: 400;\">Coordination messages between ATCs and airlines<\/span><\/li>\n<\/ul>\n<\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">It integrates inputs from airlines, ATC units, meteorological offices and AAI stations, converts multiple message formats into a unified one, and routes them appropriately.<\/span><\/li>\n<\/ul>\n<h3><b>Why the AMSS is Vulnerable: Old Architecture &amp; Integration Gaps<\/b><\/h3>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Delhi\u2019s AMSS, supplied by a Spanish firm, operates on <\/span><b>legacy server architecture<\/b><span style=\"font-weight: 400;\"> with old message-switching software, partly patched but outdated.\u00a0<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Key vulnerabilities include:<\/span>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"2\"><b>Database\/server overload<\/b><span style=\"font-weight: 400;\"> during peak traffic<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"2\"><b>Poor synchronisation<\/b><span style=\"font-weight: 400;\"> between primary and standby systems<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"2\"><b>Integration issues<\/b><span style=\"font-weight: 400;\"> with automation, AIS, and network routers<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"2\"><b>Network faults<\/b><span style=\"font-weight: 400;\"> causing message flow bottlenecks<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"2\"><b>Limited local technical expertise<\/b><span style=\"font-weight: 400;\"> available to maintain the legacy system<\/span><\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h3><b>What Triggered the Delhi Breakdown<\/b><\/h3>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">According to officials, Delhi\u2019s failure occurred due to:<\/span>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"2\"><span style=\"font-weight: 400;\">Synchronisation failure between primary and standby servers<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"2\"><span style=\"font-weight: 400;\">Delayed system switchover<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"2\"><span style=\"font-weight: 400;\">Corrupted message queues, preventing message retrieval and routing.<\/span><\/li>\n<\/ul>\n<\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">These resulted in the inability to transmit or receive flight plans and NOTAMs, forcing ATCOs into complete manual mode.<\/span><\/li>\n<\/ul>\n<h3><b>Need for Modernisation<\/b><\/h3>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Experts emphasise that India urgently needs to migrate to a modern, cloud-supported AMHS\/ATS integrated system with robust redundancy, real-time synchronisation and trained technical support.\u00a0<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">The current setup is inadequate for India\u2019s rapidly growing air traffic load.<\/span><\/li>\n<\/ul>\n<h2><b>Parliamentary Panel Flags Degrading ATC Automation Systems<\/b><\/h2>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">The Parliamentary Standing Committee\u2019s 380th Report (August 2025) warns that automation systems at major airports like Delhi and Mumbai are showing <\/span><b>serious performance degradation<\/b><span style=\"font-weight: 400;\">, including system slowness, data processing delays, and outdated functionalities.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">The report notes that Indian ATC systems lack several advanced features available in global systems such as <\/span><b>Eurocontrol<\/b><span style=\"font-weight: 400;\"> and the <\/span><b>FAA<\/b><span style=\"font-weight: 400;\">, including:<\/span>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"2\"><span style=\"font-weight: 400;\">AI-enabled conflict detection<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"2\"><span style=\"font-weight: 400;\">Predictive analytics for traffic flow<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"2\"><span style=\"font-weight: 400;\">Real-time, seamless data sharing across units and with aircraft<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"2\"><span style=\"font-weight: 400;\">Integrated, modern decision-support tools<\/span><\/li>\n<\/ul>\n<\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">This technological gap reduces operational efficiency and restricts airspace capacity.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Due to missing automation features, Air Traffic Controllers must manually compensate for system weaknesses, adding significant <\/span><b>cognitive strain<\/b><span style=\"font-weight: 400;\"> on already overburdened Air Traffic Controllers (ATCOs).<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">The lack of updated tools increases the risk of <\/span><b>human error<\/b><span style=\"font-weight: 400;\">, potentially jeopardising safety and limiting the effective management of fast-growing air traffic volumes.<\/span><\/li>\n<\/ul>\n<h2><b>India Plans Major Upgrades to Modernise Air Traffic Management<\/b><\/h2>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">The Ministry of Civil Aviation has outlined several AAI initiatives to modernise air traffic systems.\u00a0<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">These include installing a <\/span><b>new nationwide AMHS<\/b><span style=\"font-weight: 400;\"> to replace outdated AMHS\/AMSS platforms and deploying <\/span><b>Automatic Dependent Surveillance\u2013Broadcast (ADS-B)<\/b><span style=\"font-weight: 400;\"> ground stations at 21 airports, with installations completed at 15 additional sites.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">According to an AAI note updated in August 2025, India is planning a major upgrade of its air traffic management system.\u00a0<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">This includes new automation tools, better technology, and a shift from ground-based to satellite-based navigation to match global standards.<\/span><\/li>\n<\/ul>\n<p><b>Source:<\/b> <strong><a href=\"https:\/\/www.thehindu.com\/news\/national\/why-was-there-a-tech-glitch-at-delhi-airport-explained\/article70284947.ece#:~:text=The%20story%20so%20far%3A%20Air,for%20it%20to%20be%20restored.\" target=\"_blank\" rel=\"nofollow noopener\">TH<\/a> | <a href=\"https:\/\/www.newindianexpress.com\/xplore\/2025\/Nov\/13\/understanding-the-atc-tech-glitch-that-paralysed-delhi-airport\" target=\"_blank\" rel=\"nofollow noopener\">IE<\/a> | <a href=\"https:\/\/www.forbesindia.com\/article\/news\/what-caused-delhi-airports-atc-glitch-that-delayed-800-flights\/2988626\/1\" target=\"_blank\" rel=\"nofollow noopener\">FI<\/a><\/strong><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Delhi\u2019s AMSS failure stopped message flow for 24 hours, forcing manual ATC work. Learn about the causes, vulnerabilities, and India\u2019s upcoming ATC upgrades.<\/p>\n","protected":false},"author":18,"featured_media":73777,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[18],"tags":[3727,60,22,59],"class_list":{"0":"post-73649","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-upsc-mains-current-affairs","8":"tag-amss-failure","9":"tag-mains-articles","10":"tag-upsc-current-affairs","11":"tag-upsc-mains-current-affairs","12":"no-featured-image-padding"},"acf":[],"_links":{"self":[{"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/posts\/73649","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/users\/18"}],"replies":[{"embeddable":true,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/comments?post=73649"}],"version-history":[{"count":0,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/posts\/73649\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/media\/73777"}],"wp:attachment":[{"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/media?parent=73649"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/categories?post=73649"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/tags?post=73649"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}