Of course it is open to everyone but it is still called Professional Pilots Rumour Network. Those having luck to fly last couple of years have emphatically being told that CB is not designed to operate as switch and must not be used as such - maintenance cutting the supply of the MELed item by collaring the CB notwithstanding. A little that I know about 767 enables me to categorically state that my house is nothing like it. Hopefully the final report will make it clear what was the position of popped CB, why it wasn't not monitored by EICAS, what was the LOT's policy regarding the CBs, how come no one either in the aeroplane or on the ground remembered to suggest checking CBs, why Boeing didn't include "check CBs" in checklist, etc.
Check CBs. It might result in large cost savings.