Unplanned roof fall occurred in 1st N.W. Panel in #9 Entry at spad #1414 (brk 4 of #4 entry belt line in the right return entry). Approximately 90 ft. length x 19 ft. wide x 14 ft. to 16 ft. high. The date of development was November 2008. No injuries, entrapment or equipment involved. Stoppings will be re-routed to re-establish the right return air course.