Sometime between 3:00 PM 9/1/07 and 9:50 PM 9/3/07, a fall occurred 1 break outby spad # 18097 in #4 entry. The fall measured 35' x 19' x 8' - 10' thick. The area was breakered off and will be cleaned with additional roof support installed. MSHA and OMSL were notified upon discovery.