FM/FG A320
Hello everyone,
Is it possible to lose the flight management portion of the FMGS without the flight guidance portion?
In other words, FCU/AP/FD/AT still working but Flight management portion inop..
I am quite certain this is possible as when one activates nav backup on one MCDU, the other side can remain coupled with the same side AP.
So my question is: what has to go wrong in the FMGS for the flight management portion to be lost whereas the FG portion still works?
Thanks a lot in advance.