As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING HEAVY MAINTENANCE CHECK, CORROSION WAS FOUND OUT OF LIMITS IN THE RIGHT LAVATORY FLOOR STRUCTURE FS 1137 RBL 26. REMOVED CORROSION IAW SRM B727 511006. FABRICATED NEW PART FROM .050 2024 T4 AS PER SAMPLE. TREATED AND PRIMED IAW SRM B727 511002 AND MM 512002. INSTALLED IAW SRM B727 513002.