As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SUPP INFO FOR NRC 200978 - MAIN CABIN FLOORBEAM CORRODED STA 1640 RBL 30-LBL 30. REMOVED CORROSION ON FLOORBEAM STA 1640, FOUND TO BE OUT OF LIMITS. CUT OUT DAMAGED SECTION OF FLOORBEAM, FABRICATED REPLACEMENT UPPER CHORD AND REPAIR ANGLES AND INSTALLED REF B757 SRM 53-00-51. DURING HMV AT ST AEROSPACE SAN ANTONIO.