As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING HEAVY CHECK MAINTENANCE FOUND LAV WASTE SERVICE DOOR CUTOUT FLANGE CORRODED AT FR 88 AND STR 27R - 28R. REMOVED AND REPLACED LAV WASTE SERVICE CUTOUT INTERNAL FLANGE/ DOUBLER BETWEEN FR 88-89 AND STR 27R-28R IAW SRM 51-40-08. RESTORED SURFACE PROTECTION IAW SRM 51-23-06.