What was found
DURING A "C" CHECK, FWD CARGO COMP BILGE BS 480 STR 27 LT HAS BULGING AND CRACKS IN CHANNEL AT FASTENERS. REMOVED FASTENERS FOR ACCESS AT FWD CARGO COMP BILGE BS 480 STR 27L IAW B727 SRM 51-30-2. CUT OUT DAMAGE SECTION OF STRINGER APPROX 16 1/4". FABRICATED ONE STRINGER REPAIR APPROX 16 1/4 USING BACB 1498-142 PO NR 9001233 AND ONE SPLICE APPROX 10 1/4/ USING BACB 1498-131 PO NR 9001233 IAW B727 SRM 53-10-3 FIG 1 ALODINE AND PRIMED PARTS IAW B727 SRM 51-10-2. INSTALLED STRINGER REPAIR AND SPLICE IAW B727 SRM 53-10-3 FIG 1.