Sky,
Would we ever have known that they were OFF right until the very last moment? Relying on switch positions after a 100G event seems a leap of faith.
As the switches were next to one another....and they were found in positions opposite of what they should have been in....Prime Switches ON....Transfer Switches OFF....would your 100G event (apparently nose down when that 100G event loaded the Switches) would that cause the Switches to be in the wrong positions?
I have to assume "Forward" is ON....and Aft is OFF.....and unless I am mistaken they are not gated switches....it would seem all four would have been ON if the G Forces of the impact were to have shifted those switches forward.