A320 ILS and non precision approach coding on FMS
While using FINAL APP GUIDANCE, FCTM mentions to cross check the approach coded in the FMS against the chart; Eg. FPA, FDP, MAP etc. This action is clear since the FMS will be using barometric altitude for vertical guidance. However, I see that even an ILS approach is coded in the FMS similar to a non-precision approach. If the ILS is flown based on the ground based radio signals, what is the requirement for this approach to be coded in the FMS with an FPA and MAP?