ROCK FALLS OCCURRED ON NO. 1 WEST MAINS IN TILLER. FALLS OCCURRED SINCE LAST WEEKLEY INSPECTION. NO VENTILATION INTERRUPTION. ALL BOLTED WITH 4'GLUE BOLTS. LOCATION: 1) 1 BREAK INBY S.S.459 #6 HDG 90' X 20' X 8' THICK. 2) 1 BREAK INBY SS. 445 #3 HDG. 20' X 20' X 8'THICK. 3)JUST OUTBY SS. 446 #3 HEADING. 70' X 20' X 8'.