AN UNINTENTIONAL ROOF FALL OCCURRED ON PANEL #3. BREAK #1 IN THE #5&6 ENTRIES. SIZE OF FALL WAS ESTIMATED TO BE 90'L X 20' W X 8-9'H. AREA HAD BEEN SUPPORTED WITH 4' FULLY GROUTED RESIN BOLTS WITH SUPPLEMENTAL SUPPORT CONSISTING OF 10' CABLE BOLTS NO INJURIES, VENTILATION WAS INTERRUPTED, PRIMARY ESCAPEWAY WAS BLOCKED. FALL WAS CLEANED UP VENTILATION RESTORED, ESCAPEWAY RE-ESTABLIS