A FALL OF ROOF OCCURRED IN THE 5TH NE PANEL ON THE #2 UNIT IN THE #2 ENTRY - 3 X-CUTS INBY THE SECTION TAILPIECE. THE FALL WAS APPROX 19'W, 5.5'H, 40'L. DUE TO AN UNDETECTED SLIP. THE AREA WAS BOLTED WITH 5' FULLY GROUTED BOLTS. THE FALL WILL NOT BE CLEANED UP.