An unintentional roof fall has been discovered on the King Knob Panel in the #5 entry at #5 block on 8/24/23. No injuries occurred due to this incident with no damage to any equipment, ventilation controls, or escapeways. The air course examiners travel is also unobstructed as well. The dimensions of the fall measured 27'L x 18'W x 10'H. All approaches have been dangered off.