How to find why no flight - AA Flight 545

Was doing some research on Flight 545 yesterday (writting a travel article for another board) and noticed that 545 didnt go yesterday. This is a Daily Flight from Dallas to Seattle.

Cant find anything on any flight tracker and nothing on American Airlines board.

Anyway to find out wha happen.

Per the American Airlines website, it was canceled.

Go to the American Airlines website. You’ll find the flight was canceled. No reason given.

Thanks, wonder what the reason was. Weather was good there and the flight arrived from its inbound ok.

Boy thats 180 or so really peeved peeps