CAT IIIB

AcronymDefinition
CAT IIIBInstrument Landing Category IIIB Flight Conditions
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Being second in South East Asia (SEA) after New Delhi Airport, ILS CAT IIIB at AIIAP Lahore is a ground based instrument approach system which provides precision guidance to an aircraft landing on the runway during reduced visibility due to fog or blowing snow.
On the other hand, Air India is blaming the Directorate General Civil Aviation ( DGCA) for not giving CAT IIIB certificate to Dreamliner aircraft.
Both airports operate in conditions of low visibility up to CAT IIIB.
With CAT IIIB status, visibility can drop below this level and aircraft can still safely arrive and depart the airport.
While the new system, Cat IIIA, is fully operational, we will be working over the next few months to upgrade it to Cat IIIB. We intend to accomplish this by October," he said.
The airport, which features ILS CAT IIIb equipment, has a single 3,400m-long runway (12/30) and is paved with concrete and asphalt.
Operations almost came to a complete halt around 10 PM after runway visibility dipped to less than 75 metres, which is the minimum required visibility condition for an aircraft to land using CAT IIIB instrument landing system.
In an effort to mitigate fog-related flight disruptions, the Directorate General of Civil Aviation (DGCA) has decided that aircraft that are not compliant with CAT IIIB ILS will not be allowed to land in Delhi before 10 am during low-visibility conditions, Zaidi said.
With this in mind, a CAT II Instrument Landing System was installed on the 12 end of its runway in 1997 and this was subsequently raised to CAT IIIb standards in November 2008.
In January 2009, the airport received the first advanced airport classification CAT IIIB (a fully independent runway system), the opening of terminal 3 with its full retail outlets and the Abu Dhabi International Airport Midfield Terminal Complex (MTC), which will be located between the airport's two runways, given its name.
According to Al Mazrouei, ADAC is on course to deliver on the multiple projects that make up the multi-billion development programme, including the new CAT IIIB runway and the new air traffic control complex (ATCC) by the end of 2009.
The next upgrade (Cat IIIB) will enable us to operate in visibility of 50 metres," he said.