THE AIR SLIDE ON 2A MILL HAD CHOKED UP. JOAN WASMANUALLY JACKING UP THE MILL USING THE MANUAL JACK HANDLE. THERE WAS SOME BUILT-UP MATERIAL UNDER THE AREA WHERE THE HANDLE IS. LOOSE MATERIAL WAS AT THE BOTTOM OF THE PILE BUT THE REMAINDER OF THE PILE HAD HARDENED. EE WAS STANDING PARTIOLLY ON THE PILE, WHEN SHE SLIPPED. SHE FELL FACEDOWN, CATCHING HERSELF WITH HER HAND. SHE TURNED