What was found
RT CREASE BEAM STA 1240-1280 CORRODED. REMOVED CORROSION IAW SRM 53-60-13 ORIGINAL THICKNESS - .070", AFTER REWORK - .060", .010" MATERIAL REMOVED. FOUND TO BE OUT OF LIMITS IAW SRM 53-60-13, DETAIL 1. REMOVED CREASE BEAM IAW SRM 51-40-02. FABRICATED NEW CREASE BEAM IAW DWG BAC1515/18, REV B, FROM MATERIAL BAC1515-553/18, BATCH 3 0001699249. TREATED AND PRIMED IAW SRM 51-20-02. PAINTED IAW AMM 51-21-00-7. INSTALLED NEW CREASE BEAM 2 BS 1180-1290, RBL 63, IAW SRM 51-40-01. THIS REPAIR IS CLASSIFIED AS A CAT "A" MAJOR REPAIR.