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Airline operations astatine the Delhi airport, the country's busiest airport, were dilatory returning to normalcy connected Saturday (November 8, 2025) morning, a day aft a glitch with the aerial postulation power system delayed much than 800 flights.
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The method occupation with the Automatic Message Switching System (AMSS), which supports the aerial postulation control's formation readying process, continued for implicit 15 hours from astir 5:45 a.m. connected Friday earlier the Airports Authority of India (AAI) said astatine astir 9 p.m. that the contented has been addressed.
The Indira Gandhi International Airport (IGIA) successful the nationalist capital, which has 4 runways, handles much than 1,500 formation movements daily.
Delhi airdrome relation DIAL connected Saturday (November greeting said the method contented which affected the AMSS is gradually improving.
"Airline operations astatine Delhi Airport are returning to normal, and each acrophobic authorities are moving diligently to minimise immoderate inconvenience caused," it said successful a station connected X.
Apart from implicit 800 flights that faced delays, immoderate services were besides cancelled connected Friday, impacting hundreds of passengers.
The country's largest airline, IndiGo, connected Saturday (November 8) greeting said the airdrome relation and Air Traffic Control (ATC) teams were moving connected precedence to afloat reconstruct systems and stabilise operations.
"The concern is expected to beryllium normalised implicit the adjacent fewer hours. During this period, immoderate departure and accomplishment timings whitethorn proceed to beryllium adjusted," it said successful a station connected X.
Information disposable connected formation tracking website Flightradar24.com showed that implicit 200 flights were delayed astatine the airport, including arrivals and departures, connected Saturday morning.
It could not beryllium instantly ascertained whether the formation delays were lone owed to the AMSS contented which is gradually improving.
While the AMSS started facing the method contented Thursday precocious afternoon, the outage with the strategy happened astatine astir 5:45 americium connected Friday, pursuing which aerial postulation controllers had to hole formation plans manually, according to sources.
The AAI, which provides navigation and different services, had besides deployed further manpower to hole the formation plans manually which is simply a time-consuming process.
On Friday evening, the AAI said it has addressed the "technical contented successful the AMSS, which caused delays successful processing formation program messages".
The contented was detected successful the IP-based AMSS strategy connected November 6.
"The OEM (Original Equipment Manufacturer) was engaged, and further unit were deployed to manually process Flight Plans for the Air Traffic Control strategy to guarantee uninterrupted and harmless aerial postulation operations immediately.
"A squad of ECIL officials and AAI unit is inactive connected site. The AMSS systems are up and functional now. Due to immoderate backlogs, determination whitethorn beryllium immoderate delays successful the mean functioning of automated operations, but the concern volition beryllium mean soon," the AAI had said.
