As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING INSPECTION, FOUND FORWARD CABIN FLOORBEAM BETWEEN FR16 TO FR23 Y254 UPPER SURFACE FLANGE HAS CORROSION. REPLACED FLOORBEAM Y254V FROM FR14-FR24 IAW SRM 51-42-11. REMOVED CORROSION IAW SRM 51-74-00. CHECKED LIMITS L=2.0" W=1.0" D=0.079". FOUND TO BE OUT OF LIMITS IAW SRM 53-11-14, FIG 105.