Originally Posted by
GentleGiant
Haha yes
We have global entry as well
My point is that the first class check in staff at T5 had never heard of it!
This is a BA IT faul and there is no reason why BA staff at LHR should be aware of what TSA Pre-Check is.
As GE participants, you are eligible for expedited security processing (Pre-Check) when departing a US airport on a carrier participating in Pre-Check. BA is a participant. Thus, when you check in for your return flight to the UK, the Pre-Check logo should appear and you will then be able to use the Pre-Check line at TSA. BA's IT should suppress the printing of the logo on a departure from other than the US, but it apparently does not.
If you are flying onwards on AA, simply check-in on the AA app or pull a new AA boarding pass at any kiosk or from any AA agent on arrival and, presuming that you have properly entered your GE number in your AA profile, you should see the Pre-Check logo.
If for any reason you have not entered your GE number in your AA profile, you can do that online, by phone, or with any agent on arrival. Depending on the time of day, there may even be AA agents wandering around the CBP sterile area who can assist from a tablet.