As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LH FWD FUSELAGE TOILET SERVICE PANEL CUTOUT SKIN STIFFENER CORRODED. REPLACED THE HEAVY CORRODED STIFFENER (SKIN) ON LH FWD FUSELAGE TOILET SERVICE PANEL CUTOUT PER A300-600F SRM 51-40-21. THIS IS CATEGORY A REPAIR. MAJOR REPAIR IAW FEDEX GMM 6-2-100.