If a single failure occurs below decision height, "AUTOLAND FAULT" will be displayed; at that point the aircraft is committed to landing and the autoland system will remain engaged, controlling the aircraft on only two systems until the pilot completes the rollout and brings the aircraft to a full stop on the runway or turns off the runway onto a taxiway. This is termed "fail-active." In this state the autoland system is "one fault away" from disengaging so the "AUTOLAND FAULT" indication should inform the flight crew to monitor the system behavior very carefully and be ready to take control immediately.