My apologies, I left out a YQ amount which is the fuel and insurance surcharge. NB XT is where the airlines used to run out of space for all the "taxes" in the tax boxes of a paper ticket. So, they showed the first 2 in full then add all the others up and put them in the third tax box with the tax code XT and then broke the XT amounts out in the fare calculation. In theory ETicket does away for that need but it's going to take a while to update all the systems.