As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING MAINTENANCE BASE VISIT FOUND THE LAVATORY BUCKET TO BE CORRODED AROUND THE WASTE VALVE, WATER CONNECTION, AND RELEASE HANDLE. THE AIRCRAFT WAS REMOVED FROM SERVICE. REPAIRED IAW EO EM-53MR-1555. THE AIRCRAFT WAS RETURNED TO SERVICE.