EE WAS TAKING STEEL LINERS OFF THE WEST WALL OF #2 BALL MILL. LINERS SECURELY IN PLACE ABOVE & TO BOTH SIDES OF THE LINER HE INTENDED TO BREAK LOOSE. HE HAD USED AN AIR ARC GOUGER TO CUT ALONG THE EDGES OF THE LINER TO FREE IT FROM THE OTHERS BUT IT WOULD NOT COME FREE. HE USED HIS HAND MAUL, STRIKING IT 5 TO 8 TIMES, WHEN A CHIP OF STEEL SPLINTERED OFF THE LINER INTO HIS KNEE.