Originally Posted by
fastflyer
I believe that the way the software is programmed, it is after elites with upgrade requests _at the airport_ that are unfulfilled. Not simply all upgrade requests.
The elite must have been added to the airport list to take priority over the LFBU.
In the 24 hours before the flight, the LFBUs can clear as long as the airport
upgrade request list remains empty of elites (and I further believe that list may be populated only by physical presence at the airport).
What is this "belief" based on, if I may ask? Since upgrades clear off the original list, and not the airport list, for about 21 hours after check-in is available, this belief makes no sense with regard to the way AA's systems currently work.
Cheers.