Plain English Meaning

If one of the cockpit screens fails, the other screen automatically rearranges itself to show the most important flight information all in one place, so the pilot still has what they need to fly the airplane.

Full Definition

A backup display configuration on a glass cockpit (electronic flight display) system that automatically activates when one of the primary display units fails. The remaining functioning display consolidates the most critical flight and engine information onto a single screen so the pilot can continue flying safely.

Context Anchor

Seen in glass-cockpit airplanes during display checks, abnormal procedures, and training for a failed or blank cockpit screen.

Derivation

From 'reversion,' meaning a return to a previous or backup . The system reverts from its -display setup to a single combined display when needed.