What was found
FWD CARGO COMPARTMENT, STR 26R IS CORRODED BETWEEN STA 720F AND STA 740 WITH EXFOLIATION REMOVED RT PACK CHECK VALVE AND DUCT IAW FEDEX MM 21-20-004 AND SRM 51-30-2. CUTOUT DAMAGED AREA DIM 10 1/2 INCH LONG. FABRICATED REPAIR FILLER FROM BAC1498-147 AND REPAIR SPLICE FROM BAC1498-131 IAW B727 SRM 53-10-3 FIG 1 AND 53-10-2 FIG 9. TREATED AND PRIMED PARTS IAW B727 SRM 51-10-2. INSTALLED REPAIR PARTS IAW B727 SRM 51-10-3 NAD 51-30-2. REINSTALLED RT PACK CHECK VALVE AND DUCT IAW B727 MM 21-20-004 AND SRM 51-30-2. LEAK AND OPS CHECKS GOOD.