What was found
DURING C-CHECK, LOWER FWD CARGO COMP AIR CONDITIONING AREA FRAME BS 720F CORRODED BETWEEN STR 26 R/27R. REMOVED FASTENERS FOR ACCESS IAW B-727 SRM 51-30-2. CLEANED CORROSION AND FOUND MATERIAL LOSS OUT OF LIMITS IAW B-727 SRM 53-10-1 FIG 1. CUT OUT DAMAGE AREA OF FRAME BS 720 F DIMENSION 6 X .5 INCH AND FABRICATED REPAIR PIECE DIMENSIONS 7.75 X 3.5 INCH USING 7075 T-6 .063 PO 9911861 IAW B-727 SRM 53-10-4 FIG 11. ALODINED AND PRIMED REPAIR PART IAW B-727 SRM 51-10-2. INSTALLED REPAIR IAW B-727 SRM 51-30-2 AND 53-10-4 FIG 11.