Delhi Airport ATC glitch resolved: AMSS system fully functional after day-long disruption

New Delhi: The Airports Authority of India (AAI) announced on Friday evening that the technical glitch in the air traffic control’s Automatic Message Switching System (AMSS), which had disrupted flight operations at Delhi airport, has been resolved and the system is now fully functional.

AAI said that while the AMSS is operational again, some delays may persist temporarily due to backlogs in automated processes, and normal functioning is expected to resume soon. The issue was first detected on November 6 in the IP-based AMSS, a critical system responsible for processing flight plans for air traffic controllers.

More than 800 flights were delayed, and several were cancelled earlier in the day due to the malfunction. To maintain safe and continuous operations, AAI engaged the system’s Original Equipment Manufacturer (OEM) and deployed additional personnel to manually process flight plans until the issue was fixed.

In a post on X at 8:56 pm, AAI stated that teams from the Electronics Corporation of India Limited (ECIL) and AAI remained on-site to monitor system stability. The agency added that the Civil Aviation Secretary, AAI Chairman, and senior officials had convened a review meeting soon after detecting the malfunction to expedite corrective action.

Delhi’s Indira Gandhi International Airport, the country’s busiest, handles over 1,500 flight movements daily. Authorities said normal flight operations are gradually returning to schedule following the restoration of the AMSS.

With inputs from PTI