I removed the clecos and prepared the parts for riveting. I did not dimple the holes in the aft edge of the F-776 bottom center skin because they would match up with the F-706 bulkhead and F-778 bottom aft skin later when the two fuselage halves were brought together.
I then dimpled the holes in the skin and the ribs that would later match up with the lower aft tabs on the F-725, 726, and 727 baggage ribs.
Time: 8 hours.