THE SLOPE HOIST AT THE WHEATLAND PORTAL MALFUNCTIONED AND WOULD NOT OPERATE. IT WAS AN ELECTRICAL MALFUNCTION THAT STOPPED THE HOIST FROM OPERATING. AT AROUDN 2 AM THE HOIST WAS ABLE TO BE OPE RATED IN MANUAL MODE BUT COULD STILL NOT IN AUTOMATIC MODE. THIS INCIDENT DID NOT EFFECT PASSAGE OF MEN ONLY SUPPLIES. THE ELEVATOR AT THE HART ST. PORTAL WAS STILL OPERATIONAL.