As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING C-4 CHECK, INSPECTION REPORTED AFT LAVATORY SERVICE PANEL CORRODED AT FWD HINGE. FOUND TO BE OUT OF LIMITS PER SRM 51-30-02. FABRICATED REPLACEMENT PANEL AND DOUBLER PER EA 52F-737-091. ALODINED PER SRM 51-21-41, PRIMED AND PAINTED PER SOPM 20-41-02. INSTALLED DOUBLER AND PANEL PER EA 52F-737-091. INSTALLED HATCH ASSY. ON PANEL PER SRM 51-40-02.