If the PFD display fails, how can PFD information be displayed on the MFD?

• A. Display PFD information on the EICAS screen.
• B. Cycle through the PFD pages on the MFD.
• C. Select PFD on the MFD display reversionary panel.
• D. Reset the flight computer.

Answer: (C)

When a PFD fails, the system provides a backup path to show the same critical flight data on the MFD. You do this by selecting PFD on the MFD’s display reversionary panel. This routes the PFD information—attitude, airspeed, altitude, and flight path cues—onto the MFD, so you can maintain situational awareness despite the failed PFD. Simply cycling through MFD pages or resetting the flight computer wouldn’t reliably deliver the PFD-style presentation on the MFD, whereas using the reversionary selection is the intentional, standard method to display PFD data there.