What was found
AFT CARGO BS 990 BETWEEN STRS 27L AND 30 FWD SIDE OF FRAME HAS CORROSION 3 PLACES. REMOVED CORROSION AT FRAME BS 990 BETWEEN STR 26L AND 28L ORIG. THICKNESS .063 MAT. LOSS .003 REMAINING .060 WITHIN LIMITS IAW 727 SRM 51-10-6 FIG 1 AND 53-10-2 FIG 5. REMOVED CORROSION AT FRAME 990 BETWEEN STR 28 AND 30L FOUND OUT OF LIMITS IAW SRM 53-10-1 FIG 1. CUT OUT DAMAGED AREA APPROX DIM 5"BY 1.5"IAW SRM 53-10-4 FIG 15. FAB FRAME REPAIR FROM P/N 7075-T6 .071 APPROX DIM 9" BY 5" PO NR 9004940 AND FILLER FROM 7075-T6 .063 APPROX DIM 5" BY 1.25" PO NR 9004690 IAW SRM 53-10-4 FIG 12. TREATED, PRIMED AND REINSTALLED FRAME REPAIR IAW SRM 51-10-2, 53-10-4 FIG 12 AND 51-30-2.