DURING KILN SHUTDOWN, EE WAS ASSISTING MAINTENANCE ON REPAIR OF CEMENT DOME. HE WAS STANDING ON CURB AT TRUCK SCALES AT DOME LOOKING IN A PICKUPTRUCK FOR A FLASHLIGHT WHEN HE BACKED UP AND SLI PPED OFF THE CURB, INJURING HIS LEFT ANKLE. AFTER REPORTING FOR WORK ON 8-24-01 HE WAS SENT TO ER WHERE MINUTE AVULSION CORTICAL FRACTURE WAS DIAGNOSED AND ANKLE SPLINTED.