A FALL OCCURRED IN THE NO. 5 HEADING OF THE 002 SECTION LOCATED IN THE EAST SUBMAINS. FALL WAS APPROX 120 FT LONG BY 20 FT WIDE BY 3-8 FT HIGH.CONTINUOUS MINER AND ROOF BOLTING MACHINE WERE C AUGHT. THERE WERE NO INJURIES AND VENTILATION WAS NOT AFFECTED.