Originally Posted by
VNAV PATH
Push the "submenu" line select key (LSK) in the left bottom corner of the CDU (1st photo)
It will show "satcom submenu page", and push the "log on" LSK. The SAT 1 and SAT 2 will surely change to "available"
Thankyou I will try it next time logging off and logging on again
Thankyou for your reply