New Delhi: The major technical glitch in the Air Traffic Control (ATC) at the Indira Gandhi International (IGI) Airport in Delhi that played havoc with flight schedules for nearly two days between Thursday and Friday could have been avoided had authoritiess paid heed to warnings by the Air Traffic Controllers’ Guild (India).

The Guild had, in July this year, cautioned the government and aviation regulators that the country’s automation network was showing signs of “performance degradation”, including data lags and processing delays at key airports such as Delhi and Mumbai. ADVERTISEMENT

It had urged that air navigation systems be upgraded to global benchmarks followed by agencies such as the US Federal Aviation Administration (FAA) and Eurocontrol. It flagged the absence of predictive t

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