Hello ExpertFlyer!
I've read through the FAQs on EF's website, and searched within this thread, but I came up empty handed:
What should subscribers do when an airline (AA, in this case) renumbers a large portion of their flights as it relates to flight alerts? Should the subscriber re-run the search and set a new alert with the updated flight number?
I'm fortunate that I only have a few active flight alerts, so I set alerts with the updated flight numbers. However, is their a systematic way to take care of this on your end?
Presumably, AA renumbered several flights to open up flight numbers for US-AA integration (if that even comes to fruition).