Use this tab to assign product model functions to deferral item codes. When an item code is associated with a function, it is only possible to use the item code for faults where this function number is listed as function, sub function, or bottom function in Serial Operational Information/Fault/General.
When reporting a fault, the item code is required to be defined for the part revision where the fault is reported. The function is required to belong to the product model in the top part of the structure where the part revision is installed.