UNPLANNED ROOF FALL OCCURRED DURING THE MAINTENANCE SHIFT. THE LOCATION OF THE FALL WAS IN #10 ENTRY 2 BKS INBY SPAD #413 AND 30' FROM THE ACTIVE FACE. THE FALL MEASURED 30'X15'X5-6' AND FELL ON THE JOY 12-27 RIGHTCONTINUOUS MINER. THERE WERE NO INJURIES. VENTILATION WAS NOT AFFECTED. ROCK WAS REMOVED FROM THE CAR AND MINING CEASED IN THAT AREA OF THE MINE