I completed deburring, dimpling, seaming and fluting ribs and bulkheads for the center fuselage. The seat ribs were clecoed to the center and baggage area bulkheads for riveting, then I decided I wanted to prime the flanges of the ribs before riveting. The ribs are stainless and I was concerned about bi-metallic corrosion. So I took everything apart, primed the flanges, waited for drying and then put it all back together. I riveted a could of the ribs but decided I need to reposition somehow to get a better rivet stance, and see if I can place the manufactured hear of the rivet on the rib flange side. I don't like the distortion the rib has when the manufactured head is on the bulkhead side. I decided to wait on the riveting and inserted the upper and lower bolts and washers and nuts for the seat rib to center bulkhead connection.
Reassembled for riveting
First two ribs riveted
Back side of riveted ribs. Slight distortion on rib flanges.
