What was found
FUSELAGE SKIN, REPAIR DOUBLER AT BS 745, S19L/20L, HAS A RIDING CONDITION AT LAP SEAM. INTERNAL CUTOUT HAS EXCESSIVE EM/NOT IAW SRM. REMOVED DOUBLER IAW SRM 51-40-02. REMOVED DAMAGE ON SKIN IAW SRM 53-00-01. PERFORMED HFEC ON INTERNAL AND EXTERNAL DOUBLER SKIN PER NTM 51-00-19, PT6, NO CRACK INDICATIONS NOTED. FABRICATED NEW DOUBLER. LOCATED AND DRILLED IAW SRM 51-40-05. TREATED AND PRIMED IAW SRM 51-20-01. INSTALLED NEW DOUBLER AT BS 745, S19L/20L, IAW SRM 53-00-01, REPAIR NR 3 CAT. "B" MAJOR REPAIR. REPAIR NR 3 FOR TRACKING.