Fog engulfs north India, hits flights
Flight operations at the IGI airport here came to a standstill Saturday morning due to dense fog and fault in instrument landing system, which led to diversion of several flights to other cities.
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Dense fog reduced the visibility to zero metre and runway visbility to 100 metre at the Delhi airport. The CAT III B instrument landing could not be used due to fault in the RVR instrument located on the main runway as well the new runway at the Dwarka side, airport sources said.
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Due to the fault in the cable of runway visibility instrument that provides visibility data to ATC at the runway for operation of flights using CAT III B instrument landing system during the fog, the ATC could not receive the data since 2 am and no flights could be operated using CAT III B ILS despite Delhi having two CAT III B compliant runways.
