A layer of collapsed blocks that, based on their size, position, type and tool/construction marks, must once have belonged to ashlar wall 5006/5007. Given the way in which this cluster of blocks is partly floating in soil and partly resting on the level of the tufo floor beneath, it most likely represents a combined collapse/dumping activity that began when this sector of the complex had been abandoned, before other later activity.
First layer of ashlar collapse in lower part of Area F