Originally Posted by
Tigerpilot1995
I am referencing guys that just bid the ANC FO spots. Since they do not have a seat lock can't they displace a CA in any seat their seniority will hold? Maybe I am just too confused on this whole thing and should just get back to studying

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The new -400 FOs are seat-locked for two years for transitioning to another FO seat. They can upgrade to Capt at anytime when there is a vacancy (original or recurring), but they cannot arbitrarily displace a Capt from their seat.