As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FORWARD MAIN CABIN FLOOR SUPPORT BET FR18 AND FR20 -Y254 HAS CORROSION. BLENDED AREA IAW SRM 51-74-00. MATERIAL LOSS .079 INCH L=4 INCH W=2 INCH. FOUND TO BE OUT OF LIMITS IAW SRM 53-11-14 FIG 105. REMOVED AND REPLACED DAMAGE FLOOR SUPPORT IAW SRM 51-42-11.