AN UNINTENTIONAL ROOF FALL WAS DISCOVERED IN THE #2 X-CUT, BETWEEN THE #1 & #2 ENTRIES OF 2ND NORTH (NORTH-SUB). THE FALL WAS APPROX. 40'L x 18'W x 5.5'H. THE FALL OCCURRED IN AN AREA THAT HAD BEEN BOLTED WITH 5' ROOF BOLTS PRIOR TO THE OPERATOR VOLUNTARILY INSTALLING LONGER ROOF BOLTS.