EE WAS JUST DEMOTED FROM SHIFT BOSS TO MINER ANDTHIS MUST BE A CONTRIBUTING FACTOR- TO EARLY TO TILL DR. HAS NOT DETERMINED EXTENT OF DAMAGE TO EE'S KNEE. WAS DRILLING FOR ROCK BOLT- STEEL INTERSECTED WITH EXISTING BOLT THE DRILL HUNG & TWISTED & EE TWISTED HIS KNEE TRYING TO HOLD ON.