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SkyView
HDX System
General Maintenance Manual, Revision F
5.13
Warning, Caution, and Message Alerting System
The area directly above the rightmost button (Button #8) is the Message Notification Area (see
). This area is reserved to notify the flight crew of various messages and alerts that the
SkyView HDX Display can present. All messages and alerts are categorized by severity into one
of three categories. These include advisory
“messages”, “caution” alerts, and “warning” alerts.
The definition of messages and alerts are as follows:
•
Warning alerts are for conditions that require immediate flight crew awareness and
immediate flight crew response.
•
Caution alerts are for conditions that require immediate flight crew awareness and
subsequent flight crew response.
•
Messages are for conditions that require flight crew awareness and may require
subsequent flight crew response.
Figure 21: Message Notification Area Showing a Warning Notification
Whenever a new alert or message is generated, the message notification indicator (also the soft
key label) will flash to provide a visual indication that there are unviewed messages or alerts that
have not yet been seen and acknowledged. In addition, a corresponding voice aural will
annunciate. The annunciation is typically the spoken word “WARNING”, or “CAUTION” if the
alert is a warning or caution.
Pressing Button #8 will open the Message Window. The message window provides alerts in the
form of a written message correlating with each active alert. After Button 8 is pressed, the
messages present in the window are considered acknowledged and the message notification
indicator will stop flashing. The message notification indicator will remain highlighted to indicate
whether a message, caution, or warning condition exists.
The appearance of messages within the Message Notification Area is different when they are
first activated and when they become acknowledged. The difference between un-acknowledged
and acknowledged messages are shown in
