I continued working on SNX-F11 today. I finished rivetting in the forward tunnel zee. I counterbored and dimpled the parts for the aft tunnel web assembly. I deburred everything and started reassembly. I rivetted in the lower firewall and upper firewall assembly, along with the stiffeners. I cleco'd the floor back in place .. but am contemplating a plan for positioning the landing gear so I'm not sure if I'll rivet it yet even though the plans show doing so.