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EICAS control panel is rendered inoperative. To regain control, the EICAS selector on
the SOURCE SELECTOR PANEL must be set to the operable display (ED1 or ED2) to
re-establish the EICAS control panel functions. The selector also makes available all
EICAS information on the selected display.
Display Reversion
Figure 02---20---4
Source Selector Panel
Center Pedestal
To ensure timely access to essential EICAS data, all EICAS pages can be made
available on either MFD by selecting the EICAS position on the respective Display
Reversionary Panel.
Display Selector
Figure 02---20---5
Pilot’s Display Reversionary Panel
Pilot’s Side Panel
Copilot’s Display Reversionary Panel
Copilot’s Side Panel
AURAL/VISUAL INDICATING AND Vol. 1 02--20--7
RECORDING
Engine Indicating and Crew Alerting System Sep 09/02
Flight Crew Operating Manual
CSP C--013--067
B. Aural Warning
Various tones call attention to warnings. There are ten types of aural alerts:
Sound Indication Chapter Reference
Warbler Stall Chapter 11, Flight Controls
Siren Windshear Chapter 18, Navigation
Whoop -- Whoop GPWS mode 1 or 2 (excessive
descent rate or excessive closure
rate)
Chapter 18, Navigation
Fire Bell Fire warnings Chapter 10, Fire Protection
Clacker 1. Excessive stabilizer trim
movement
Chapter 11, Flight Controls
Chapter 12, Flight Instruments
2. VMO/MMO exceedance
3 Ai d t hi h f t fl
3. Airspeed too high for current flap
setting
Cavalry Charge Autopilot disconnect Chapter 3, Automatic Flight
Control System
Horn Gear not down Chapter 16, Landing Gear
Triple chime Warning tone that precedes an
aircraft system voice advisory
Chapters 2 through 20
C-chord Altitude alert Chapter 12, Flight Instruments
Single chime Caution tone that precedes an
aircraft system voice advisory
Chapters 2 through 20
AURAL/VISUAL INDICATING AND Vol. 1 02--20--8
RECORDING
Engine Indicating and Crew Alerting System REV 1, Jan 13/03
Flight Crew Operating Manual
CSP C--013--067
DCU Controls and Indications
Figure 02---20---6
Audio Warning Panel
Copilot’s Side Console
DCU 1 or 2 INOP status (white)
Indicates internal fault or crosstalk fault
in respective data concentrator unit.
DCU 1 or 2 AURAL INOP
status (white)
Indicates internal aural fault in
respective data concentrator
unit or indicates respective
DCU aural output has been disabled.
Status Page
AURAL/VISUAL INDICATING AND Vol. 1 02--20--9
RECORDING
Engine Indicating and Crew Alerting System REV 1, Jan 13/03
Flight Crew Operating Manual
CSP C--013--067
C. Master Warning / Master Caution Lights
Two MASTER WARNING lights come on flashing when any warning occurs. The lights
remain on as long as the warning exists. Pushing either MASTER WARNING
extinguishes both MASTER WARNING lights for the duration of that warning and resets
the lights for future warnings.
Pushing the MASTER WARNING also silences the aural warnings except for the
following cases:
S Stall warbler S Stabilizer trim clacker
S GPWS/TCAS (voices and aural) S AP Disconnect cavalry charge
S Overspeed clacker S Configuration warnings
S Flap clacker S Gear Horn
Two MASTER CAUTION lights come on flashing when any caution occurs. Pushing
either MASTER CAUTION extinguishes both MASTER CAUTION lights for the duration
of that caution and resets the lights for future cautions.
Pushing the MASTER CAUTION will not silence the following:
S GPWS and TCAS voice alerts
S Altitude alert (C-chord) aural
Master Warning / Master Caution Lights
Figure 02---20---7
MASTER WARNING
Both lights come on (red) in
conjunction with warning
lights and EICAS messages.
Pushing either switch will
turn both lights out and
reset warning system for
subsequent indications.
Lights cannot be dimmed. Left and Right Glareshield
WARNING
MASTER
CAUTION
MASTER
MASTER CAUTION
Both lights come on (amber)
in conjunction with caution
lights and EICAS messages.
Pushing either switch will turn
both lights out and reset
caution system for
subsequent indications.
Lights cannot be dimmed.
D. Crew Alerting System Messages
Crew alerting system messages appear in the message area on both EICAS displays
(ED1 and ED2). The messages are arranged by their urgency and order of occurrence.
All crew alerting system messages are divided into one of four categories: warnings,
cautions, advisories, or status.
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