I A P 2 0 2 3 . 0 0 1 - A F M / I R I S T E X A N I I P A G E | 100
FOR SIMULATION USE ONLY ā NOT A TRAINING AID
CREW ALERTING SYSTEM (CAS)
The CAS displays caution, advisory, and status alert messages as shown in the
previous table. An aural tone generator directs pilot attention to the alert. The
EICAS displays red warning, amber caution, green systems status, and white status
illuminations.
The previous table summarizes the warning, caution, and status indications. When
additional CAS are available for viewing, MORE (L5) displays on the EICAS page.
Pressing MORE (L5) displays the overflow messages. The subsequent EICAS page
displays the RETURN (L5) page indicator to return to the first EICAS page.
The EICAS interconnects with the master caution and warning switch lights on the
respective glare shield. The master caution/warning system on each glare shield
includes an amber master caution switch light, a red master warning switch light,
and a red fire warning annunciator.
MASTER WARN AND MASTER CAUTION SWITCHLIGHTS AND FIRE WARNING
ANNUNCIATOR
Resettable, color-coded, master warning and master caution switch lights and a
fire warning annunciator are located to the left of and adjacent to the UFCP in each
cockpit. The red warning switch lights illuminate MASTER WARN, the amber caution
switch lights illuminate MASTER CAUTION, and the red fire warning annunciators
illuminate FIRE.
When a warning or caution message on the EICAS display in either cockpit
illuminates, the respective MASTER WARN or MASTER CAUTION switch lights will
flash in each cockpit.
Pressing the flashing MASTER CAUTION or MASTER WARN switch light in either
cockpit will extinguish the lamp and rearm the switch light for subsequent or
additional system failures or malfunctions.
Additionally, if the underlying cause of the message on the EICAS display has been
alleviated, pressing the MASTER WARN or MASTER CAUTION switch light will also
extinguish the message. If the underlying condition persists, the corresponding
EICAS message will remain illuminated until the malfunction or failure is alleviated.
Any time the red FIRE annunciator illuminates, the MASTER WARN switch light and
master warn tone are triggered. The FIRE annunciator will remain illuminated until
the underlying cause of the annunciator (i.e., fire or bleed air leak) has been
alleviated.
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