What was found
AFT CARGO PIT LT Z ANGLE HAS VARIOUS SPOTS OF CORROSION (MARKED IN RED) FROM STA 727G TO 807.LBL 21; WL 156.1. REMOVED CORROSION FROM AFT CARGO BAY LT ZEE ANGLE LBL 21 WL 156.1 STA 727G TO STA 807 AND INSPECTED W/ 10X MAG GLASS. NO DEFECTS NOTED. VERIFIED LIMITS TO BE = .004' MATERIAL LOSS = .020' ORIGINAL T = .040'. SECTION OF ZEE ANGLE BETWEEN 747 TO 847 FOUND TO BE OUT OF LIMITS IAW SRM 53-00-53-1A-2. FABRICATED NEE ZEE ANGLE AND REPAIR PARTS IAW SRM 53-00-53-2R-5. INSTALLED NEW ZEE ANGLE STA 727J+11' TO STA 847 IAW SRM 51-40-02-0G-0 AND DWG 146A7500 REV. APPLIED CIC TO LOWER AND UPPER SURFACE IAW AMM 51-21-91-620-802 P/N 146A7502-31.