What was found
LEFT WING FAYING SURFACE FOR TE UPPER BONDED PANEL, REMOVED ON NR0576, HAS CORROSION AT WS 1060. REMOVED CORROSION IAW B767 SRM 51-10-02 PERFORMED ROTARY HOLE SCAN, HFEC & 22 INCH GVI OF REWORKED AREA IAW B767 NTM PART 651-00-16 & 51-00-19 NO DEFECTS NOTED. PERFORMED THICKNESS CHECK OF GRIDDED AREA IAW B767 NTM PART 4 51-00-10 .116 TO .075 MAT 7075-T6 PO 0037433. FABRICATED SHIM IAW REA B657-60793MR PRIMED AREA IAW B767 SRM 51-20-01. SDR INFORMATION, PART NUMBER 112T3101-5, PART NAME LT UPPER WING SKIN, S/N: NSN, CORRODED, FS BS LOC. A/C: AFT OF REAR SPAR STRINGER WS LOC ACFT WS 1056.5 TO WS 1062. ACFT WAS GNDED.