Removing primer from rivetholes and skin outside. Rivet ribs and centre channel together with angles before installing them into skin. Installed trim cutout channel and rest of ribs with clecoes. Rivet whole bottom side of skin, with exeption of center-section. Had to install 6-T-3-6 and some angles first, but wait for inspection. Prepared trim- skin and -hingle, add primer. Left them to dry until tomorrow.