Hello all

 

First of all, I did this for a friend, whom I helped setup his fs, so this is more my responsibility .

As the title says, when he reaches 20000, the fmcs turns off. Only thing that brings it back on, ja turning the generators of and on, and then only the right fmc goes on.

Any tips?

Have your friend submit a ticket to Product Support. 

Not yet. Wanted to look here first

You mean it switches off completly? Screen goes black on both of them? What does the plane fly like? Can you fly it, or change heading, altitude et al with the MCP?