American snagged 22 million from the state to expand the maintenance facility in Tulsa.

https://www.dallasnews.com/business/airlines/2023/12/13/american-airlines-snags-22-million-from-oklahoma-for-tulsa-maintenance-base/

What became of their massive expansion announced a few years ago? Did that come to fruition?

What became of their massive expansion announced a few years ago? Did that come to fruition?

Yes.