As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
MAIN CABIN AFT UTILITY AREA BTW FR65 - FR66 ST Y765 FLOOR SUPPORT CORRODED. BLENDED FLOOR SUPPORT Y765 FR 65-66 IAW SRM 51-74-00. ORIG MAT. 0.125 DAMAGE DIM. L=1.5 INCH W=1.0 INCH D=0.040 INCH. FOUND TO BE OUT OF LIMITS IAW SRM 53-00-14. LOCATED AND DRILLED NEW FLOOR SUPPORT IAW SRM 51-44-11. REPLACED WITH NEW FLOOR SUPPORT IAW SRM 51-42-11, PAINTED FASTENERS IAW SRM 51-75-12.