My brother Bernie graciously came over again to assist in riveting. We started at the F-704 bulkhead completing the left, right and bottom riveting of the bulkhead. We then moved forward and riveted the longerons and lower firewall angle onto the F-772 forward bottom skin. This was followed by riveting the left and right F-717 longerons and F-902 bulkheads onto the F-770 forward side skins. Then we moved aft riveting the F-705 bulkhead, the F-722 and F-724 ribs, the F-706 bulkhead and the F-623 rib on the left side. With that completed we stopped for the day because I had booked a C-152 at the flying club to go flying.