Embraer EMB145, Operation Manual

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AIRPLANE
OPERATIONS
MANUAL
CREW
AWARENESS
JUNE 28, 2002
2-04-05
Page
1
Code
01
GENERAL
The EMB-145 is provided with a variety of visual, aural, and sensitive
warnings to notify crew regarding systems status, malfunctions, and
abnormal airplane configurations.
Alarm lights provide indication whether there is an abnormal situation.
Some systems also provide indicating lights, for system status
indication.
An Engine Indication and Crew Alerting System (EICAS) provides the
flight crew with a three-level alerting and indications messages system:
warning, caution and advisory. A fourth level is provided exclusively for
maintenance purposes. Besides the five displays on the main panel,
two back up displays are provided through the RMUs (Radio
Management Unit). Some of the more critical messages also generate
an aural warning.
Sensitive warning is available through the Stall Protection System
(SPS), which shakes the control column, if an imminent stall is
detected.
To aid in navigation and approach procedures, the airplane is also
provided with a Ground Proximity Warning System (GPWS/EGPWS),
a Traffic and Collision Avoidance System (TCAS), and a Windshear
Detection and Escape Guidance System.
AVIONICS INTEGRATION
The EMB-145 is equipped with a variety of highly integrated computers
and displays, so as to reduce pilots workload while providing high
reliability and redundancy. This feature is achieved by providing
different paths to each type of data, thus minimizing the possibility of
losing information due to failure in one computer.
The system is composed of:
−
Two Integrated Computers (IC-600);
−
Two Integrated Computer Configuration Modules (IM-600) (If installed);
−
Two Data Acquisition Units (DAU);
−
One Central Maintenance Computer (CMC);
−
One Horizontal Stabilizer Control Unit (HSCU);
−
Two Primary Flight Displays (PFD), two Multi-Function Display (MFD)
and one Engine Indications and Crew Alerting System (EICAS)
display;
−
Two Radio Management Units (RMU);