As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
MAIN CABIN STA 324, RBL 42 FLOORBEAM UPPER SURFACE HAS AREAS OF CORROSION. MAJOR REPAIR ACCOMPLISHED: REMOVED FLOORBEAM UPPER FLANGE CORROSION, FOUND OUT OF LIMITS. INSTALLED FLOORBEAM UPPER CHORD SPLICE REPAIR AND PARTIAL UPPER CHORD REPLACEMENT AT STA 324 IAW SRM 53-10-8, REPAIR 1. CAT B REPAIR.