Roof fall was found while examining the return air course on MMU-001. The fall is located at X-cut 20 #3 entry of the M3 zone. The is 40' long 17' wide 7' in thickness. Area was supported with 6' fully grouted roof bolts and developed on 6/29/09. No injuries, disturbance of air floe, or blocking of passage occurred with this roof fall.