A ROOF FALL OCCURRED ON UNIT 2 SE PANEL, ENTRY #7 AT SURVEY STATION 22 AND 20. THE FALL MEASURED 60' LONG BY 19' WIDE BY 9' THICK. THIS AREA HAD BEEN SUPPORTED WITH 6' FULLY GROUTED AND 9' DOUBLELOCK BOLTS. ALL APPROACHES TO THIS AREAHAVE BEEN TIMBERED OFF.