Placed on the Gurgaon side of Runway 3 (29R11L), it presented a risk to low-flying aircraft, especially in low visibility conditions. In a letter to the NHAI on January 8, the Delhi International Airport Limited (DIAL) asked that the crane be lowered during low visibility hours. When low visibility conditions hit flights over the past few days, DIAL was compelled to downgrade runway 3 from CAT-IIIB compliant to CAT-I compliant, said sources. While take offs can still take place in low visibility conditions, it is near impossible for landings to take place due to the danger the cranes present. Finally, CAT IIIC implies a precision instrument approach and landing with no decision height and no limitations on runway visual range.
Source: Indian Express January 16, 2024 07:28 UTC