EE WAS AT DRILL SITE CARRYING A POWER CABLE TO A J-BOX. HE SLIPPED ON A SLIPPERY SPOT CAUSED BY A TIRE FROM A LOADER OR RUBBER TIRE. WHEN HE SLIPPED HE FELL STRAIGHT DOWN ON HIS RIGHT LEG. HE WAS EVALUATED BY A PHYSICIAN ON 3/22/02 AND HAD A FRACTURE.