AN UNINTENTIONAL ROOF FALL OCCURRED IN THE #6 ENTRY JUST OUTBY THE POWER UNIT. THE FALL MEASURED 60' LONG X 20' WIDE X 7' TO 8' HIGH. THE AREA WAS BOLTED WITH 4' RESIN BOLTS. THERE WERE NO INJ URIES REPORTED BUT DAMAGE DID OCCUR TO DINNER TABLE AND A MAC-8 PERSONNEL CARRIER.