While the NWA guidelines state EUA's are run at 5-3-1 days out, in reality they seem to run between 5 & 6 PM EST at the 6-4-2 day window. In addition EUA runs at various intervals right up to the 24 hour OLCI time, so if you don't get it at your scheduled time then wait and see if you get swept... Some posters have said that EUA will run within the 24 hour mark, but my experience is that if I do not have it by then I have to get it at the gate.

If you do not see an EUA at the 24 hour it has been suggested that you OLCI to get on the wait list as I think that checkin time determines your place on the airport wait list with in your elite catagory.