Persistent faults are reported on both consoles when which condition is satisfied?

• A. The radar ECS triggers the filter
• B. EQUIP CONTR is off
• C. The filter condition is satisfied
• D. The operator acknowledges the fault

Answer: (C)

Fault monitoring uses a filter to separate quick blips from real, lasting issues. When the filter condition is satisfied, the fault has persisted long enough to be considered real rather than a transient glitch, so it becomes a persistent fault and is reported on both consoles for redundant visibility. This ensures the crew sees the fault even if one display is unavailable. The other options don’t describe the mechanism that makes a fault persist and be shown on both consoles—the filter condition being met is the trigger for persistence, not simply triggering a filter, disabling equipment control, or an operator acknowledgment.