VOR Course Flag
Indicates VOR course data failure in red.

Check HDG Flag
Appears inamber when a discrepancy of at least 5° between both NDs is detected by the flight warning computer (FWC).

HDG Flag
Indicates heading data failure in red. Flashes for the first nine seconds.

LOC Flag
Indicates localizer data failure in red. Flashes for the first nine seconds.

Center Message Area

• MODE Change - Appears in green when a discrepancy is detected between the selected mode on the EFIS control panel and the mode sent from the on-side FMGC, or while a new page is being prepared by the DMC for display. Has priority over "RANGE Change" message.
• RANGE Change - Appears in green when a range discrepancy is detected.
• MAP NOT AVAIL - Appears in red when "CHANGE" message is displayed more than six seconds, or to indicate FMGC failure, or to indicate that the airplane position provided by FMGC is not valid.

VOR Flag
Indicates VOR dbearing is not valid. Flashes for the first nine seconds.

G/S Flag
Indicates G/S data failure in red. Flashes for the first nine seconds.

Other Message Area
Indicates incomplete map data. If the number of images exceeds capacity, the FMGC might shed some optional data from the display.

• MAP Partly Displayed - text
• NAV ACCUR DOWNGRAD or NAV ACCUR UPGRAD - text
• SPECIF VOR / D UNAVAIL - text
• Check ADF1, Check VOR1, Check ILS1 - text
• Set Offside RNG / MODE - text

VOR/ADF/DME Flag
Indicates failure of a navigation receiver in red. Flashes for the first nine seconds.