I tried to create a NEW NAVAID in the Flight Management System because I was simulating a flight to an airport that is not in the database of the FMS.

What Category is Airbus referring to in the MCDU menu:

  • DATA > Next Page > NAVAID > 2R, (see image below).

I don't understand why a LOC DME has categor y= 0? What it's RNP or ILS DME? which category should I insert?

screenshot of the FMS MCDU display

Reference: FCOM> Aircraft System> Auto Flight-Flight Management> Control and Indicators> MCDU-Page Description> NAVAID/PILOT'S NAVAID> NEW NAVAID Pages.


1 Answer 1


It's the precision instrument approach category, CAT I (1), CAT II (2) or CAT III (3). LOC DME doesn't have an approach category because it provides only lateral guidance with no vertical support, so a precision instrument approach is not possible.

  • $\begingroup$ Noted, thank you :) $\endgroup$
    – tamimaflah
    Oct 24, 2023 at 17:36

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