Performed Service Bulletin 06-2-3, vertical stabilizer. Removed VS-1012 (drilled out rivets attaching the VS-1012), cleco VS-1017 doubler plate to VS-1003, matched drilled, bedured. Cleco VS-1017 to the forward side of the VS-1003. A link to SB, http://www.vansaircraft.com/pdf/sb06-2-3.pdf