As the runway visibility was less than the required minima for takeoff of 125 metre and 150 metre, flights were unable to take off, he said. However, flights arriving at the airport were landing using CAT-IIIB instrument landing system.
Two Jet Air flights arriving here between 4 AM and 5 AM were diverted due to operational reasons. According to sources, the pilots were not trained to operate CAT-IIIB landing system. Due to poor visibility at the new runway, it was not operational and only the main runway was functional, the official said. This is the first spell of dense fog this year.