After drilling the horizontal stabilizer to A4 size, I disassembled to begin deburring and corrosion control. When I removed the skins and starting breaking down the skeleton, I saw where I had damaged 3 of the 4 rear ribs during the drilling. I don't think these ribs would pass inspection (certainly not mine!) and I'm ordering replacement ribs this week before proceeding on this assembly. Wondering if anyone else has had this issue?

Not much accomplished this weekend other than drilling and mounting the center hinge bracket on the horizontal stabilizer. Drilled out most of the stabilizer to A4 but am short on clecos and reluctant to complete drilling until I receive the clecos I ordered earlier in the week. Should be able to finish drilling next weekend. Will then disassemble, debur and prime for final assembly and riveting.