I was also plugged in when it all went quiet and it wasn't good for the old ticker.
General manager observed standing in the ops room just after it happened but no words of thanks, apology or any form of explanation forthcoming yet.
I agree with previous posts - if this had happened during the morning rush it would have been horrendous.
A similar scenario when no back-up power kicked in happened years ago and we were told it wouldn't happen again!!! I just hope I'm not plugged in when it does happen again.