An unintentional roof fall occurred along the #4 belt at break #26 one break inby spad #1419 between the #6 and #7 entry in the primary escape way approximately 9,900 feet from the active face. The area was dangered off and the life line was rerouted. This area will not be rehabilitated. The fall was 40 feet long X 20 feet wide and 7 feet thick.