EMPLOYEE WAS SERVICING DOZER UTILIZING A LUBE TRUCK. AS HE WAS STEPPING FROM THE DOZER TO THE LUBE TRUCK BED HIS FOOT SLIPPED AND HE FELL TO THE GROUND LANDING ON HIS RIGHT SIDE. EE WORKED REG ULAR DUTY UNTIL HE HAD SURGERY ON HIS RIGHT KNEEON 10-10-02. EE RETURNED TO WORK ON LIGHT DUTY ON HIS NEXT SCHEDULED WORK DAY 10-13-02.