EICAS System Flashcards
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Questions and Answers

EICAS displays (ED-1, ED-2) will come on when Battery Master is selected on, you have ____ minutes to establish A/C power.

5

What is the purpose of the EICAS system?

Continually monitors all airplane systems and provides critical information to pilots.

In the event of an ED-1 failure, the ________ page defaults to _______.

primary; ED-2

Which four buttons will continue to function in the event of an EICAS Control Panel Failure?

<p>PRI, CAS, STAT, STEP</p> Signup and view all the answers

You can silence an erroneous oral warning by turning off the speaker button on the Audio Control Panel.

<p>False</p> Signup and view all the answers

What happens when both DCU switchlights (DCU 1/DCU 2) are selected to DISABLE?

<p>EICAS aural warnings are disabled.</p> Signup and view all the answers

What is the purpose of Data Concentrator Units (DCUs)?

<p>Collect data from various aircraft systems and control aural warning signals.</p> Signup and view all the answers

What is the function of the Lamp Driver Unit (LDU)?

<p>Illuminates switchlights associated with EICAS messages.</p> Signup and view all the answers

How many blades are on the N1 fan?

<p>28</p> Signup and view all the answers

What two indications may not be right for T/O Config Ok message?

<p>Flap setting, STAB Trim</p> Signup and view all the answers

When does the landing gear and flap information disappear from the EICAS primary page display?

<p>When the gear is up and locked, flaps are up, and wheel brake temperatures are normal.</p> Signup and view all the answers

Why is the operating time limited on the ground with only battery power available?

<p>Cooling fans for the EICAS displays are AC powered and do not operate.</p> Signup and view all the answers

What happens when the Master Caution or Master Warning switchlights are pressed?

<p>Silences the current caution or warning and arms the system for the next.</p> Signup and view all the answers

Which EICAS messages can be associated with a voice message?

<p>Warning (Red)</p> Signup and view all the answers

What is the only way to get rid of a Warning Message?

<p>Fix the problem.</p> Signup and view all the answers

What are EICAS Aural Alerts for a Warning Message?

<p>Triple Chime</p> Signup and view all the answers

Where are Advisory (Green) and Status (White) messages displayed?

<p>ED2</p> Signup and view all the answers

What information does the Aircraft Status (FMAN) include?

<p>Flaps position, maintenance status, APU exhaust area clearance, nosewheel doors position.</p> Signup and view all the answers

How do you notify Flight Attendants during a planned emergency?

<p>Hit chime button 3 times (6 total chimes) and do TEST with emergency details.</p> Signup and view all the answers

Study Notes

EICAS Overview

  • EICAS (Engine Indicating and Crew Alerting System) displays activate when Battery Master is turned on, providing 5 minutes for establishing aircraft power.
  • Continuously monitors airplane systems to provide critical information to pilots, displaying alerts for system faults.

Display Functionality

  • In the event of an ED-1 failure, the system defaults to display the primary page on ED-2.
  • Landing gear and flap information disappears from the EICAS primary display once the gear is up and locked, flaps are retracted, and wheel brake temperatures are normal.

Control and Alert Systems

  • Six buttons on the EICAS Control Panel remain operational during a failure: PRI, CAS, STAT, STEP.
  • Selecting both DCU switchlights to DISABLE will eliminate all EICAS aural warnings.

Data Management

  • DCUs (Data Concentrator Units) gather data from various aircraft systems, process the information, and transmit it to EICAS displays.
  • The Lamp Driver Unit (LDU) illuminates panel and glareshield switchlights corresponding to EICAS messages, with dual channels for redundancy.

Aural Alerts and Warnings

  • Aural alerts include:
    • Triple Chime indicates a warning message.
    • Single Chime signals a caution message.
    • Fire bell alerts for engine or APU fires.
  • Only a warning message can be cleared by resolving the underlying problem.

Emergency Notifications and Messages

  • Different EICAS messages can trigger voice alerts, specifically warning messages shown in red.
  • Advisory (green) and Status (white) messages are displayed on ED-2.
  • To notify Flight Attendants during a planned emergency, activate the chime button thrice for a total of six chimes and provide essential emergency details.

Miscellaneous Facts

  • An N1 engine has 28 blades.
  • For proper takeoff configuration, incorrect flap settings and STAB Trim can affect status.
  • Battery-only operation time is limited due to the cooling fans of EICAS displays being AC powered and non-operational.

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Description

Test your knowledge on the Engine Indicating and Crew Alerting System (EICAS) with these flashcards. Learn about EICAS functionality, display purposes, and critical information necessary for pilots. Perfect for aviation students and professionals wanting to refresh their understanding of aircraft systems.

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