There's an A/C port on the wall next to 1A on the 321 used for vacuums. I've used it a couple of times to charge my phone...Poor man's A/C outlet...There's also one in the F lav if you're really in a pinch. I can't remember if there's one in the Y lavs.
Also did I hear somebody call it USAir up thread?!?!? Better look out for the US branding police that lurk around on this thread who will tell you that USAir hasn't existed since the 90s...
Go Gators