AN UNINTENTIONAL ROOF FALL OCCURRED IN THE 6TH MAIN EAST POWER ENTRY DUE TO THE WEAKENED STRATA BELOW THE POINT OF ANCHOR. THE AREA WAS ORIGINALLY SUPPORTED WITH 5' CONVENTIONAL TYPE ROOF BOLT S. THE AREA WILL BE CLEANED UP AND RESUPPORTED. THE FALL AREA MEASURED 24.5' X 15' X 4'.