As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
A3NB-53-3-6185 MAIN CABIN FLOOR SUPPORT Y254 HAS CORROSION FROM FR68 TO FR70 (DOT 38-32)() REPLACED MAIN CABIN FLOOR SUPPORT Y254 FROM FR68-FR70. FOUND TO BE OUT OF LIMITS IAW SRM 53-00-14-283-002 FIG.1 MEASURED AT L=3. 0" X W=1.5" X D=0.031" T14905.