My guess is that it would do it fine, but obviously you would only do it if it was your last option.
latetonite As you need two AP 's in CMD, getting info from two FCC's , and the BTB is open, how you want to do that with only one AC source?
If you've lost one generator and the BTB has closed I can't see anything critical that would be left without power. What is it that you think will be left unpowered?