As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING C-05 CHECK EXFOLIATION CORROSION WAS FOUND ON LOWER SURFACE OF FLOOR SUPPORT BETWEEN BS 1009 AND BS 1012, AT RBL 38. MAINTENANCE CUTOUT DAMAGE IN FLOOR SUPPORT AT RBL 38 FROM BS 1009 AND BS 1012; FABRICATED -1 AND -2 REPAIR PLATES; INSTALLED REPAIR PARTS IAW B737-300 SRM 51-70-12, FIG. 1.