A roof fall was discovered on the longwall Panel 2 belt line in 2 Headgate at 7:50 AM. The fall was located between 89 and 90 crosscuts. The fall measured approximately 50 feet long and 7 feet in height. The fall area had initially been bolted with 6' torque tension bolts. The limestone typically present in the anchorage zone of a 6' bolt had thinned out in this area.