A method, apparatus and system for the transferring a container for receiving high level radioactive waste into andor out of a pool. The system stores signals indicative of a last key press, a last key press time, and a last keyboard state. Thermal wear, overheating, restrained firing and aft closure debris can be isolated through the separation of gas management systems. The foam layer includes a first major side in contact with the first layer of molded structural material and a second major side in contact with the second layer of molded structural material.