Which shirt color is associated with personnel who operate under the guidance of Yellow Shirts and handle planes?

The blue shirt is specifically associated with personnel who work on the flight deck, particularly in roles that include operating under the guidance of yellow shirts, who are the aircraft handling personnel. Blue shirts typically include roles such as plane directors, equipment operators, and other support functions necessary for aircraft operations.

These personnel play a crucial role in ensuring safe and efficient operations on the flight deck, as they manage the movement and positioning of aircraft and support equipment. The distinct color coding system on the flight deck helps keep the operation organized and allows for quick identification of the different roles each color represents, which is critical in a high-paced environment like the flight deck.