All MFDs failed except MFD #3, which condition is indicated?

All MFDs failed except MFD #3, which condition is indicated?

• A. APU GEN ON advisory
• B. Dual Generator Fail
• C. Battery Failure
• D. Stabilator Fault

Answer: (D)

When the system experiences a critical flight-control fault, the DFCS/Flight Control System drives a high-priority warning to the cockpit displays. A stabilator fault is such a fault: it directly affects pitch control and must be quickly identified by the crew. If all MFDs fail except one, the remaining active MFD will still show the primary fault status for the affected system, so you’ll see a Stabilator Fault message on that last working display. The other options describe electrical/generator or battery issues. While serious, they aren’t the specific flight-control fault that would be annunciated on the surviving MFD in this scenario, so they don’t fit the indication pattern as well as a stabilator fault does.

When the system experiences a critical flight-control fault, the DFCS/Flight Control System drives a high-priority warning to the cockpit displays. A stabilator fault is such a fault: it directly affects pitch control and must be quickly identified by the crew. If all MFDs fail except one, the remaining active MFD will still show the primary fault status for the affected system, so you’ll see a Stabilator Fault message on that last working display.

The other options describe electrical/generator or battery issues. While serious, they aren’t the specific flight-control fault that would be annunciated on the surviving MFD in this scenario, so they don’t fit the indication pattern as well as a stabilator fault does.