After the technical glitch in flight operations in Delhi, now a similar problem has come to light in Nepal. All incoming and outgoing flights have been stopped after a technical fault in the runway lights at Nepal’s Tribhuvan International Airport. Airport officials said that flight operations will remain closed until the problem is resolved.

Both domestic and international flights affected
According to officials, both domestic and international flights have been stopped at Nepal’s Tribhuvan International Airport due to a technical problem with the runway lights. Keeping security in mind, all the planes have been grounded.

Technical team deployed on site
Technical teams have been deployed at the airport to investigate and resolve the problem. Officials said efforts are on to restore normal flight operations as soon as possible. Airport spokesperson Renji Sherpa told ANI that there was a problem with the runway’s airfield lighting system. He said, at least five flights are on hold at present. All domestic and international arriving and departing flights are facing delays. The problem was discovered at 5:30 pm (local time).

All flight movement in Nepal’s Tribhuvan International Airport halted following a technical glitch in the lights along the runway, according to airport officials.

More details awaited.

— ANI (@ANI) November 8, 2025

Nepal’s largest airport affected
Tribhuvan International Airport is the main aviation hub of Nepal and most of the country’s air traffic operates from here. Due to malfunction in runway lighting, the flight system of the entire country has been affected.

Flights were disrupted in India also a day earlier
This incident has come to light a day after a major technical glitch disrupted flight operations at India’s Indira Gandhi International Airport (IGI) in Delhi on Friday, affecting air traffic across the country.

Operation impaired due to AMSS system failure
Airport officials said that the Automatic Message Switching System (AMSS), a vital system related to the flight planning process of air traffic control, had failed. However, now this problem has been completely rectified and flights became normal on Saturday.

There was chaos at Indira Gandhi International Airport (IGI Airport) in the country’s capital Delhi on Friday (November 7) when a sudden technical glitch in the air navigation system affected the operations of the entire airport. Due to this disturbance at IGI, which is counted among the busiest airports in the world, about 800 flights were delayed and thousands of passengers had to wait at the terminal for hours.

According to sources, this technical flaw in the Air Traffic Control (ATC) system was so serious that both flight landing and takeoff were affected for some time. Many planes were kept in holding patterns in the air, while some had to be diverted to nearby airports. The problem was resolved at around 9 pm, after which flight movements gradually started becoming normal. It is a matter of relief that there was no major accident with any aircraft.

Passengers expressed displeasure

Expressing their displeasure, the passengers said that they were not informed about the situation for several hours. At the same time, passengers of many domestic and international flights were stopped at the gate as runway operations were temporarily stopped.

Where did the problem come from?

The Airport Authority and DGCA immediately deployed technical teams to handle the situation. The failure was related to the navigation data server, causing disruption in communications and navigation systems. During this time the airport staff tried to solve the problems of the passengers.

Advisory issued at around 11:55 pm

In an advisory issued at around 11:55 pm, Delhi Airport Management said, “All flight operations have now become normal. Passengers can travel without any worries.”

As per the passenger advisory issued at 11:55 hours by the IGI Airport, all flight operations are normal at Delhi Airport. pic.twitter.com/UvSasSiqAj

— ANI (@ANI) November 8, 2025

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Flight operations were severely affected on Friday after a major technical glitch in the AMSS system at Delhi’s Indira Gandhi International Airport, due to which more than 200 flights were delayed. Earlier it was told that this has affected Mumbai Airport also, however later Mumbai Airport Authority said that advisory was issued to the passengers by mistake.

AMSS failed at Delhi airport

As soon as the AMSS system crashed at Delhi Airport, the air traffic control had to leave the automatic mode and work manually. Due to this, the data of each flight had to be processed manually. Distance calculations of the planes also had to be done manually and coordination had to be done through voice communication, due to which the operation of flights became much slower than usual.

Delay of more than an hour at Delhi airport

At present, there is an average delay of 62 minutes i.e. more than an hour in the departure of flights at Delhi Airport. According to data from Flightradar24, this delay has increased after a technical glitch in the air traffic control system. Airports Authority of India (AAI) has said that its teams are busy fixing the AMSS (Automatic Message Switching System), which supports ATC data. There are approximately 1,500 flight movements daily at Delhi Airport. Under normal conditions, 60-70 flights take off and land per hour. In such a situation, due to automation failure, the backlog of flights increased rapidly and the delay extended for several hours, the effect of which was seen in the entire network.

Mumbai Airport issued clarification

Mumbai Airport (MIAL) said that the advisory issued earlier was issued by mistake and was a human error. The airport clarified that all flight operations here are running completely normal and smoothly.

What is AMSS system?

AMSS is the system that sends flight plans, weather information, and other technical data between ATC and airlines. Once it fails, controllers have to enter all the data manually, which makes operations extremely slow and significantly affects flight time.

AAI issued advisory

Airport Authority of India issued a statement saying that due to AMSS malfunction at Delhi Airport, flight operations are getting delayed and the controllers are processing all the plans manually. Technical teams are continuously working on restoring the system. Passengers have been advised to stay in touch with their airlines and keep checking updated schedules.

Advisory issued for the convenience of passengers

Authorities have requested passengers to keep checking flight information from their respective airlines, be prepared for possible delays and follow instructions given at the airport. The situation is being monitored in both Delhi and Mumbai so that the system can be normalized as soon as possible.