What was found
INSPECTION TYPE:C-CHECK, RT AFT WING TO BODY STRUCTURE STA 1240 RBL 57 INTERNAL HAS CORROSION. REMOVED CORROSION AT RT AFT WING TO BODY STRUCTURE AT STA 1240, RBL 57. ORIGINAL MATERIAL THICKNESS .080 LOSS OF .013 WITH .067 REMAINING IS OUT OF LIMITS IAW SRM 53-00-71-1A1 BLENDED AREA, HFEC FOR CRACKS, TREATED, PRIMED, PAINTED, AND CIC'D AREA IAW EA 111010IR/EO B757-5320-43787-A.