AN UNPLANNED FALL OF ROOF HAS OCCURRED 1 BRK INBY SPAD NO.7027 IN RIGHT RETURN OF NO. 6 WEST MAINS. THE FALL MEASURES 100 FEET LONG, 20 FEET WIDE, AND 10 FEET THICK. ALL ENTRANCES TO THE FALL HAVE BEEN CRIBBED AND DANGERED OFF. THE FALL DOES NOT AFFECT VENTILATION OR IMPEDE TRAVEL IN THIS AREA.