Installed flaperon torque tubes. Also cut new nylon grommets for baggage corner skins where torque tubes exit. KAI page 32-09, Rev 2 dated 7/06/2015, step 1 increased length of grommets from 3-3/16 to 3-11/16. The longer grommets do fit much tighter.
Began long riveting session by riveting bottom skin to the center section as well as to the bottom stiffeners and bottom triangular-shaped doublers. Then riveted corner fuselage skins and baggage corner skins.