AN UNINTENTIONAL ROOF FALL OCCURRED INT HE #4 ENTRY, BETWEEN #17 AND #18 CROSS CUTS. THIS WAS LOCATED ALONG THE TRAVELWAY INT HE FIRST NORTH OFF THE MAIN EAST, PANEL 9/E. THE ROOF FALL WAS 50' L, 20' W. AND 5' H. THE ROOF FALL WILL BE CLEANED UP AND THE AREA WILL BE RESUPPRTED. INITIALLY THE AREA WAS BOLTED WITH 4' FULLY GROUTED ROOF BOLTS AND INDICATED NO ADVERSE ROOF CONDITIONS.