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MASTER CAUTION
FLIGHT DATA
RECORDER
LAMP
DRIVER UNIT
X TALK
MDC
DATA
CONCENTRATOR
UNIT
(DCU 1)
DATA
CONCENTRATOR
UNIT
(DCU 2)
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Vol. 1 02--20--1
REV 56, Jan 31/03
AURAL/VISUAL INDICATING AND
RECORDING
Engine Indication and Crew Alerting System
Flight Crew Operating Manual
CSP A--013
MASTER
1. ENGINE INDICATING AND CREW ALERTING SYSTEM
The engine indicating and crew alerting system (EICAS) provides the crew with two
electronic displays to monitor the engines, control surfaces and all major aircraft systems.
The EICAS system also provides the crew with alerting system messages that are posted on
the EICAS displays in the form of warning, caution, advisory and status messages. All
warning and caution messages will also illuminate the MASTER WARNING or MASTER
CAUTION lights on the glareshield. Some crew alerts are also accompanied by aural tones
and voice advisories. The EICAS system can also illuminate switchlights on specific system
control panels to provide component/system status or to prompt corrective crew action.
The EICAS system consists of the following:
S Two EICAS displays on the center instrument panel -- Used to display system information
and status.
NOTE
The EICAS displays are referred to as EICAS Display
1 (ED1) and EICAS Display 2 (ED2). ED1 is on the left
and ED2 is on the right. The information that is shown
on each display is referred to as a page. In normal
configuration, the Primary page is shown on ED1 and
the Status page is shown on ED2.
S EICAS control panel on the center pedestal -- Used to select which EICAS page, (primary
page,status page, synoptic pages or menu page) is to be shown on ED2. The panel is
also used to display additional caution and status messages on ED1 and ED2.
S Engine/Miscellaneous test panel on the center pedestal -- Used to perform tests of the
annunciator lights, set annunciator light levels, record specific flight data events and
synchronize the engines N1 or N2.
S Display reversion control panels on the pilot’s and copilot’s side panel -- PFD position --
puts the primary flight display (PFD) information on the pilot’s or copilot’s multifunctional
display (MFD). EICAS position -- makes all EICAS information available on the pilot’s or
copilot’s MFD.
S EICAS selector on the center pedestal SOURCE SELECTOR PANEL -- Used to select
where the EICAS information will be displayed. The information can be displayed on ED1
and ED2, or all the EICAS information can be displayed on either ED1 or ED2.
S MASTER WARNING and MASTER CAUTION switchlights on the glareshield. -- Illuminate
when a warning or caution is detected by the data concentrator units (DCU’s).
S Lamp driver unit, located in the avionics compartment -- Used to control and test flight
compartment annunciator lights.
S Data concentrator units located in the avionics compartment -- Used to process data and
transmit the applicable data to the EICAS displays, flight data recorder and lamp driver
units. The DCU’s are also used to control the aural warning system.
REV 56, Jan 31/03
AURAL/VISUAL INDICATING AND Vol. 1 02--20--2
RECORDING
Engine Indication and Crew Alerting System
Flight Crew Operating Manual MASTER
CSP A--013
The EICAS Primary page displays the following information:
S Engine compressor and turbine speeds (N1 and N2 rpm)
S Engine temperature (ITT)
S Fuel flow (FF)
S Oil pressure and temperature
S Engine vibration data
S Pressurization data
S Landing gear position
S Flap position
S Fuel tank quantities and total fuel
S Crew alerting system (CAS) messages in the form of red warning and amber caution
messages.
The EICAS Status page displays the following information:
S Flight control trim indications
S Auxiliary power unit (APU) indications such as APU RPM, exhaust gas temperature
(EGT) and APU inlet door status
S Pressurization data such as cabin altitude, cabin rate of change, cabin pressure
differental, and landing field elevation
S Oxygen system pressure
S Brake system temperature readouts
S Aircraft systems synoptic pages (via the EICAS control panel) (The respective synoptic
page contents will be covered in the corresponding chapters)
S MENU page (via the EICAS control panel) allows reset of the fuel used indicator
S Crew alert system (CAS) messages in the form of green advisory and white status
messages.
Vol. 1 02--20--3
REV 56, Jan 31/03
AURAL/VISUAL INDICATING AND
RECORDING
Engine Indication and Crew Alerting System
　
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