A ROOF FALL WAS DISCOVERED BY A PUMPER ON 3/10/ 02. IT WAS LOCATED IN THE NO.1 ENTRY OF THE 8TH SUB MAIN EAST AT SPAD NO. 7+20. IT MEASURES APPROXIMATELY 20 X 20 X 9. THE FALL IN FRONT OF NO.1 SEAL OF THE #7 SET OF SEALS. THE FALL WAS NOT THERE WHEN THE SEALS WERE LAST EXAMINED.