AN UNINTENTIONAL ROOF FALL OCCURRED IN THE 1ST SOUTH PANEL OFF 1ST EAST OFF MAIN NORTH AT SPAD #11+68 #2 ENTRY #1UNIT IN THE #2 DAVIS SLAM. THE FALL MEASURED APPROX 50' X 17.5' X 10'. IT WILL NOT BE CLEANED UP. THE UNIT HAS MOVED. IT IS TIMBERED OFF AND FLAGGED OUT.