Continued to assemble the elevator. Riveted 6-T-3-6 to 6-T-3-7 and place them into elevator, lowered the upper skin and installed cleco in all holes. Riveted 6-T-3-4E with 6-T-3-4mod and install with cleco. Started from the middle to rivet upper skin with ribs, than 6-T-3-4E with 6-T-3-6 and 6-T-3-7. And doubler 6-T-3-10 Hard to remember not to rivet positions where hingles should be. And also two positions with extra long rivets. In total there were 4 holes that did not match, had to drill new in ribs.