Started tonight with a long stretch of deburring the Aft Ribs and Gussets. I then went to work correcting the error from yesterday when I cut the end flange from the wrong Rib. To correct the error I made an angle and attached it to the end of the rib where the original flange had been. I spent a lot of time measuring and adjusting to be certain that the length is correct and the rib is straight.
I finished up by riveting the gussets to the ribs. Tomorrow I will cut the correct rib flange and attach the angle (16-09) and then of course do more deburring.