The Passenger Meal and Drink Chart from this bag is to be used in conjunction with the menu from the first suitcase.
Notice that the colours and bars from the top of the meal and drink chart match those on the back of the menu.
The numbers inside the airplanes correspond to its place in the code.
Starting with the plane labelled 1, overlay the green rectangle from the meal and drink chart with the green rectangle on the back of the menu. When the rectangles are aligned, notice that the plane is pointing to a series of numbers.