AN UNINTENTIONAL ROOF FALL OCCURRED IN THE #5 ENTRY ON THE TILLEY SECTION. INTAKE 1 BREAK INBY SPAD #3140. THE FALL MEASURED 20'L X 20'W X 4 1/2'H. ALL ENTRANCES TO THE FALL HAVE BEEN BREAKERE D OFF. THE FALL WILL NOT BE REHABILITATED. VENTILATION OR PASSAGE WAS NOT AFFECTED.