What was found
RT HORIZONTAL STABILIZER L/E ELONGATED HOLES IN UPPER SKIN (STA XFS 60.000-116.250) MAJOR REPAIR. PERFORMED MAJOR REPAIR IAW BOEING MSG 1-S23U2, 1-S32CQ, DWG SEMAN ED-3475. REMOVED FASTENERS IAW SRM 51-1-21 PG 1, SRM 51-1-20D PG 21, SRM 51-3-0 PG 1. CUT OUT DAMAGED SKIN SEGMENT IAW BOEING MSG 1-S23U2, 1-S32CQ, DWG SEMAN ED-3475. FABRICATED REPAIR DOUBLER (AL7075-T6 0.050) IAW BOEING MSG 1-S23U2, 1-S32CQ, DWG ED-3745. CLEANED, TREATED AND PRIMED AREA AND REPAIR DOUBLER IAW SRM 51-1-8B. APPLIED PRC SEALANT TO FAYING SURFACES IAW SRM 51-1-11 PG 1. INSTALLED EXTERNAL REPAIR DOUBLER AND NEW FASTENERS IAW BOEING MSG 1-S23U2, 1-S32CQ, DWG SEMAN ED-3745, SRM 51-1-21 PG 1, SRM 51-1-20D PG 9, SRM 51-3-0 PG 1.