I didn't have much time tonight, so didn't cover a lot of ground. As mentioned in my last post, I started tonight's session by back-riveting the E-1008B Ribs to the Right Bottom Skin. Here is the Right Bottom Skin with the six Ribs installed.
Next, I back-riveted the E-1008A Ribs to the E-00901B Left Bottom Skin as pictured below.
According to the plans, the next step will be to rivet the Trim Access Reinforcement Doubler to the Left Bottom Skin. I will start there during the next session.