Originally Posted by
at6d
If you are a jumpseater (cockpit or cabin jumpseat) you are obligated to check in. That is all. Let’s keep it simple.
Yep... right there in the manual. Conversely, when I'm on any sort of a jumpseat pass offline even on a wide open flight, I always check-in with the captain and ask for a ride, and in the process never ignore the FO.