Prepped and primed the tunnel ribs and attachment angles. Startedtes clecoing to the firewall and realized I had made a mistake last week. I riveted the rudder pedal support brace to the firewall inset. I was supposed to rivet the tunnel attachment angle at the same time and put the rudder pedal brace on the outside. I had counter sunk the rudder support brace to receive the inset dimples. That's a problem. Ordered a new rudder support brace. Proceeded with clecoing everything up and installed the scat tube support and installed all of the #8 nut plates on the tunnel ribs. 4/2: riveted the nose wheel attach brackets to the ribs. Then riveted the rib assembly lies to the firewall. Everything is done except the rudder brace. I don't know how I'm going to get those rivets in. 4/8: received my replacement rudder bracket and primed it along with some other fuselage parts. Installed using five cherry max rivets. This section is done.