As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FORWARD CABIN FLOOR BEAM STA 344 HAS CORROSION BOTH TOP AND BOTTOM OF TOP FLANGE AT NUTPLATE HOLES LBL 30 - RBL 15 (MARKED TOP AND BOTTOM). REMOVED CORROSION PER MM 51-10-6. OUT OF LIMITS AT LBL 4, 12, AND 22 PER 53-10-8 FIG 9. INSTALLED SPLICE ANGLES PER FEDEX DRAWING NR SR27-53-007.