EMPLOYEE WAS PULLING DOWN ON A WRENCH WITH A CHEATER PIPE. THE WRENCH SLIPPED AND HIS WEIGHT SHIFTED. HIS SUPERVISOR GRABBED HIM, AND HIS WEIGHT SHIFTED ALSO PUTTING BOTH PEOPLE'S WEIGHT FIRML Y ON HIS RIGHT ANKLE. A SMALL BONE IN HIS ANKLE FRACTURED. HE WILL BE UNABLE TO WALK AND WORK AT LEAST UNTIL 2-11-02.