Garmin G1000 NXi Pilot’s Guide for the Cessna NAV III
190-02177-02 Rev. A
SY
STEM
O
VER
VIEW
FLIGHT
INSTRUMENTS
EIS
AUDIO P
ANEL
& CNS
FLIGHT
MANA
GEMENT
HAZARD
AV
OID
ANCE
AFCS
ADDITIONAL FEA
TURES
APPENDICES
INDEX
468
APPENDIX A
CAS MESSAGE PRIORITIZATION
NOTE:
Refer to the current version of the pertinent flight manual for corrective pilot actions.
NOTE:
Any CAS messages that are generated when the system is first powered on are considered already
acknowledged.
The Alerting System uses four alert levels. Messages are grouped by criticality (warning, caution, advisory,
safe) and sorted by order of appearance (most recent messages on top). The color of the message is based on
its urgency and on required action.
The Crew Alerting System (CAS) Window is located on the right side of the PFD. Warning messages cannot
be scrolled through and remain at the top of the CAS display. The scroll bar appears if more caution and
advisory messages exist than can be displayed at once or if messages have been scrolled off the display. The
CAS softkeys also become available.
NOTE:
Aural alerts associated with abnormal conditions and advisories are managed through the audio
panels. Refer to the Audio Panel and CNS Section for more information.
Warning
: This level of alert requires immediate attention. A warning alert appears in the Annunciation
Window and is accompanied by a continuously repeating chime. Text appearing in the Annunciation Window
is red. A warning alert is also accompanied by a flashing
Warning
Softkey annunciation. Pressing the Warning
Softkey acknowledges the warning alert and stops the aural tone, if applicable.
Caution:
This level of alert indicates the existence of abnormal conditions on the aircraft that may require
pilot intervention. When a new caution alert appears in the Annunciation Window, it is shown in black on
amber inverse video in conjunction with the
Caution
Softkey and is accompanied by a single chime. Pressing
the
Caution
Softkey acknowledges all amber messages and extinguishes the softkey. Once acknowledged,
caution messages are displayed until the issue is corrected.
Advisory:
This level of alert provides general information. When a new white advisory appears on the CAS
display, it is shown in black on white inverse video in conjunction with the
Advisory
Softkey (see Figure A-3).
Safe Operating Advisory
(if equipped):
This level of alert indicates crew awareness is required. It is shown
in green text in the Annunciation Window.
System Alert Message Advisory:
This level of alert provides general information to the pilot. Message
Advisories appear in the ‘Alerts’ Window and are not shown in the Annunciation Window. When a Message
Advisory occurs, the system provides a white flashing
Messages
Softkey annunciation. Pressing the softkey
acknowledges the message advisory alert, changes the
Messages
Softkey annunciation to
Alerts
Softkey
annunciation, and displays the associated text in the ‘Alerts’ Window. The
Alerts
Softkey annunciation label
remains until a new message is displayed.
Some CAS messages can be display in more than one alert level group. For example, a message might
display as both a warning and a caution, but cannot appear more than once at any given time (unless the CAS
is being tested). If the received signals justify multiple priorities for a certain message, the message is displayed
for the higher priority condition. When graduating to a higher priority, the message flashes and requires
new acknowledgment. When degrading to a lower priority condition, the message moves to the top of the
appropriate grouping, but does not require new acknowledgment.
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