At what point should radio contact be established with Corpus Approach when arriving at KNGP?

Establishing radio contact with Corpus Approach upon arrival at KNGP is critical for ensuring safe and organized air traffic management. The correct choice, which indicates that contact should be made no later than 9 miles from the airport, aligns with procedural guidelines that allow sufficient time for air traffic controllers to manage incoming aircraft. This distance provides controllers the opportunity to integrate arriving flights into the traffic flow safely, provide essential instructions, and facilitate a smooth descent and approach into the terminal area.

Additionally, this specific approach distance enables pilots to prepare for landing and comply with any necessary instructions or changes in altitude well in advance of their arrival. The guidelines ensure that communication is timely, which enhances safety and efficiency within the airspace surrounding the arrival airport.