A ROOF FALL WAS DISCOVERED AT THE BLACK KNIGHT MINE FOR BLK RUN COAL COMPANY. THE LOCATION OF THE FALL WAS ON THE MAINS, ENTRY 5 AND 6 CROSSCUT SPAD #3402. THE SIZE OF THE FALL WAS LENGTH 70' WIDTH 19' HEIGHT 10' ABOUT 320' FROM THR ACTIVE FACE WITH NO ONE INJURED.