Originally Posted by
14940674
PreCheck is free, but requires elite status or a TT membership.
I don't think there is an "OR" in this sentence. You have to be part of a CBP TT program AND an elite on an airline that is participating AND be going thru one of the few airports that are currently participating for your airline.
Edit:
You may not need to be an elite in the FFP, but I seem to remember the airlines were only advertising this to their elites initially.