Werner,

I have done what you recommended, but I get an amber message in the left lower corner of the NAV CRT saying "tcas fail". WHen I click the button in the EFIS subpanel I get above the later message, a green "tfc". However, I have realized that I see no planes in the NAV CRT even thogh I can see them from the cokpit.

Am I doing something wrong?

Thanks and best regards,

Juan