As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING C-21 CHECK FOUND CORROSION AROUND SCREW HOLE AND UNDER 2 NUT PLATES AT AFT CARGO COMPARTMENT INTERCOSTAL PANEL BS 858, WL 150, RBL 23. MAINTENANCE BLENDED OUT CORROSION AND DETERMINED CORROSION TO BE OUT OF LIMITS IAW BOEING 737-300 SRM 53-60-15. FABRICATED NEW INTERCOSTAL PANEL IAW BOEING 737-300 SRM 51-40-02. INSTALLED FABRICATED REPAIR PARTS IAW BOEING 737-300 SRM 53-60-15-1 FIGURE 101.