Plain English Meaning

If one of the cockpit screens goes blank or fails, the other screen takes over and shows the most important flight and engine information together, so you still have what you need to fly the airplane.

Full Definition

A backup display configuration in a glass cockpit where, if either the Primary Flight Display (PFD) or the Multi-Function Display (MFD) fails, the surviving screen automatically (or manually, depending on the system) consolidates the essential flight, navigation, and engine information onto a single screen so the pilot can continue to fly and navigate safely.

Context Anchor

Seen in glass-cockpit aircraft during instrument flying, especially when the main flight screen or map-and- screen fails or goes blank.