Thick fog once again disrupted operations at the IGI airport in New Delhi this morning, affecting the schedules of around 15 flights.
About 14 flights were delayed by upto three hours while one Jetlite flight to Mumbai was cancelled as dense fog enveloped the airport.
The runway visibility was around 150 to 275 metres for both the runways in the morning and flight operations were being carried out using the CAT-III B instrument landing system, an airport official said.
Last evening, the Air Traffic Control (ATC) system at IGI airport crashed during peak hours disrupting flight operations for around two hours and creating chaos on a day when fog had already thrown air traffic out of gear.
The navigation system software crashed leading to landing and take-off delays involving around 40 aircraft of various airlines.