CREW ALERTING SYSTEM (CAS)

CREW ALERTING SYSTEM (CAS) WINDOW

  • Four message priority levels:

    • WARNING (red): Indicates an emergency or airplane system condition that requires immediate corrective or compensatory crew action.

    • CAUTION (amber): Indicates an abnormal operational or airplane system conditions that require immediate crew awareness and should require a subsequent corrective or compensatory action.

    • ADVISORY (cyan): Indicates operational or airplane conditions that require crew awareness. Subsequent or future crew action may be required.

    • STATUS (white): Indicates information/ status messages.

      • STATUS LINE

    • Selected by using the CCD. Turning the active CCD scroll knobs scrolls the alert message stack list under the CAS window.

    • Indicates the number and type of messages out of the CAS window, and if they are located above or below.

    • Warning messages are not scrolled out of the window.


ROOT EICAS MESSAGES

  • EICAS messages which may generate more messages with them are called Root EICAS messages and they are highlighted by a preceding chevron ā€œ>ā€.


EICAS MESSAGE INHIBITION

  • Some EICAS messages are inhibited on takeoff or approach and landing to prevent it from being a nuisance.

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