EE WAS MONITORING MATERIAL FLOW IN A PREHEATER TOWER. THE TOWER SHIFTED AND PARTIALLY COLLAPSED CAUSING SOME STRUCTURAL DAMAGE AND FALLING DEBRIS IN THE AREA WHERE THE EE WAS STANDING. HE WAS STRUCK ON HIS RIGHT ARM AND HAND BY THE FALL DEBRIS. HE RECEIVED MEDICAL TREATMENT INCLUDING 3 STITCHES TO HIS RIGHT RING FINGER.