Brief Description: riveted skelton, drilled elevator skins
After deburring and corrision protection. Assembled horizontal sabilizer skeleton with clecoes. Square assembly and fastened to work bench so would not move. Double checked that everything is square. Proceeded to rivet entire skeleton. Opened box with horizontal stabilizer skin fitted over skeleton, had to file holes for spar brackets so skin would line up to lines marked 10mm lines marked on spars and ribs. Drilled entire skin with # 30 drill bit and than went over with # 20 drill clecoed as I drilled.