Tepco has been stating the molten fuel dropped into pedestal under RPV (Reactor Pressure Vessel), but started changing their tone since the end of 2014 for some reason. Pedestal is a part of PCV (Primary Containment Vessel) under RPV surrounded by concrete. Tepco and the government of Japan have been saying though molten fuel had a core-concrete reaction in pedestal, but it stopped sinking in the concrete.   In their report published on 3/26/2015, Tepco admits the possibility that molten fuel has … Continue reading Tepco started stating molten fuel might be out of pedestal of Reactor 1