EE REPORTED: WORKING ON THE BACK SIDE OF CONVEYOR BELT MOVING A CABLE (FCT CABLE) WHEN HE SLIPPED ON A PIECE OF DAMP DRAW ROCK. WHEN TRYING TO CATCH HIMSELF TO PREVENT FALLING, HE TWISTED HIS LOW BACK. HE EXPERIENCED PAIN AND DISCOMFORT ON THIS DATE BUT WORKED REMAINDER OF SHIFT. THE FOLLOWING MORNING EXPERIENCED PAIN AND BURNING DOWN HIS LEFT LEG.