What was found
TYS DURING A SCHEDULED INSPECTION CORROSION WAS FOUND ON THE LAVATORY SINK DRAIN CABLE/HOSE MOUNT PLATE. MAINTENANCE REMOVED AND REPLACED THE DRAIN CABLE/HOSE MOUNT PLATE IAW EMB SRM 51-40-02, 51-30-01 AND CPM 51-21-04, 05, 06. THE AIRCRAFT WILL BE RELEASED UPON COMPLETION OF INSPECTION.