Message Advisory Alerts
Annunciation
Window Text
Annunciation Description
AVN FAN 1 FAIL
Avionics cooling fan #1 is inoperative.
AVN FAN 2 FAIL
Avionics cooling fan #2 is inoperative.
Alerts Window
The alerts window displays alert text messages. Up to 64 alerts can be
displayed in the Alerts window. New alerts are placed on top of the stack and
older ones are cycled down. Alerts that are no longer valid are grayed out
and then subsequently removed after the window is refreshed. Pressing the
ALERTS softkey displays the Alerts window. Pressing the ALERTS softkey
again removes the Alerts window from the display. When the Alerts window
is displayed, the pilot may use the large FMS knob to scroll through the alert
list. Higher priority alerts are displayed at the top of the window. Lower priority
alerts are displayed at the bottom of the window.
Alerts Softkey Annunciation
When the Alerting System issues an alert, the ALERTS softkey is used
as a ashing annunciation to accompany an alert. During the alert, the
ALERTS softkey provides a new label consistent with alert level (WARNING,
CAUTION, or ADVISORY). Pressing the softkey annunciation acknowledges
that the pilot is aware of the alert. The softkey then returns to the previous
ALERTS label. The pilot can then press the ALERTS softkey again to view
alert text messages.
System Annunciations
Typically, a large red “X” appears in a window when a related LRU fails or
detects invalid data.
TAWS Alerts
Annunciations are shown on all three ight displays. Pop-up alerts are shown
only on the MFD.
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