This morning I match drilled the #40 holes in the upper firewall cowl hinges. I removed the hinges and deburred them. I then primed the hinges and riveted them to the upper firewall doubler.
After riveting the hinges to the upper firewall doubler I dimpled and then riveted the nutplates to the firewall. Some were riveted to the aft side and some were riveted to the front side.I then prepped, primed and finish painted the antenna shelf which will be attached to the forward side of the upper firewall. I also clecoed and riveted the nutplates to the antenna shelf. After riveting the antenna shelf to the upper firewall the firewall will be ready for installation on the fuselage assembly.