Over-exertion (Not Elsewhere Classified)
EE SLID THE 200+ LB DRILL HAMMER TO THE BACK OF THE SERVICE TRUCK TO HOOK IT ONTO A HOIST TO INSTALL ON THE ATLAS COPCO DRILL RIG. EE TURNED, SLID IN THE MUD AND RIGHT FOOT STUCK IN THE MUD WHICH TWISTED EE KNEE AND FELL. FELLOW EE HELPED HIM TO GET UP