As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
MAIN CABIN FLOORBEAM T-CAP HAS EXFOLIATION CORROSION BS 1640, RBL 58.2. MAJOR REPAIR ACCOMPLISHED. T-CAP CORROSION WAS FOUND TO BE OUT OF LIMITS PER SRM. REMOVED DAMAGED SECTION OF FLOORBEAM AND FABRICATED AND INSTALLED REPAIR CHORD, ANGLES, AND STRAPS PER SRM, REPAIR 3 ON NON ROUTINE 28078.