29 Questions
What is the purpose of the EICAS display system?
To categorize displays and alerts according to function and usage.
What is the purpose of the upper display unit on the EICAS?
To display primary engine parameters such as N1 speed, EGT, and warning and caution messages.
What is the purpose of the lower display unit on the EICAS?
To display secondary parameters such as N2 speed, fuel flow, oil quantity, pressure, and temperature.
What is the purpose of the Operational mode in the EICAS display system?
To display the engine operating information and any alerts required to be actioned by the crew in flight.
What is the purpose of the Status mode in the EICAS display system?
To display the status of non-engine systems such as flight control surface position and hydraulic system.
What is the purpose of the Maintenance mode in the EICAS display system?
To display maintenance information for ground use only.
What type of warning is associated with Level 3 failures?
Master Warning
In the ECAM Failure Mode, what is the primary requirement for Level 3 failures?
Immediate corrective action
What is the primary difference between Level 1 and Level 2 failures?
Action requirement
Which type of failure corresponds to an abnormal aircraft configuration?
Level 2
What is the distinguishing feature of a Level 3 failure compared to other levels?
Urgent corrective action requirement
Which level of failure classification requires the flight crew to decide on whether an action should be taken?
Level 2 (Caution)
What is the primary function of the Event Record Switch?
To enable manual recording of suspected malfunctions in non-volatile memory
In what position does the Computer Select Switch automatically switch between the left and right computers?
In the 'AUTO' position
Which of the following functions is controlled by the inner knob of the Display Brightness control?
Display intensity
What is the purpose of the Thrust Reference Set Switch?
Both B and C
What is the purpose of the Max Indicator Reset button?
To clear alerts from the display when measured parameters no longer exceed limits
Which of the following systems can the Event Record Switch be used to activate the recording of fault data for?
Environmental Control system, Electrical Power system, Hydraulic system, and APU
What is the primary purpose of the alert messages in the system?
To continuously monitor and detect malfunctions in various engine and airframe systems
Which of the following best describes a Level A - Warning alert message?
Displayed in red, requires immediate corrective action, activates master warning lights and aural warnings
How are Level B - Caution alert messages presented to the crew?
Displayed in amber, accompanied by an aural tone repeated twice
What is the maximum number of alert messages that can be displayed simultaneously?
11
Which statement best describes the purpose of the Maintenance Control Panel?
To allow maintenance engineers to access and display maintenance data stored in the system's computer memories
What is the primary difference between Level B - Caution and Level C - Advisory alert messages?
Level B alerts are accompanied by aural tones, while Level C alerts have no aural tones or caution lights
What is the primary function of the STS (System Test Switch) on the EICAS (Engine Indicating and Crew Alerting System) control panel?
To manually select an aircraft's status message when no warning is displayed
What is the primary function of the RCL (Recall) switch on the EICAS control panel?
To recall previously cleared warning messages if the failure conditions still exist
What happens when the CLR (Clear) switch is pressed on the EICAS control panel?
It suppresses status messages
How many main components make up the basic EICAS system?
4
What are the three types of information the EICAS system provides the flight crew?
Primary engine parameters, secondary engine parameters, and advisory/caution/warning alert messages
Study Notes
Display Units
- Two display units provide a wide variety of information relevant to engine operation and other automated systems
- Upper unit displays primary engine parameters:
- N1 speed
- EGT
- Warning and caution messages
- Lower unit displays secondary parameters:
- N2 speed
- Fuel flow
- Oil quantity
- Pressure
- Temperature
- Status of non-engine systems can also be displayed, including:
- Flight control surface position
- Hydraulic system
- APU
Display Modes
- EICAS has three modes of displaying information:
- Operational mode (selected by flight crew)
- Status mode (selected by flight crew)
- Maintenance mode (ground use only, selected via maintenance panel)
Operational Mode
- Displays engine operating information and alerts required to be actioned by the crew in flight
- Normally only the upper display unit presents information
Advisory Mode
- Provides a summary of the aircraft's condition following a failure and possible downgrading of systems
Failure Mode
- Classifies failures into three levels:
- Level 3: Warning (emergency configuration, requires immediate corrective action)
- Level 2: Caution (abnormal configuration, requires crew awareness)
- Level 1: Advisory (information on aircraft configuration requiring monitoring)
Event Record Switch
- Normally auto-records any malfunctions as they occur
- Manual switch enables manual event marking for storage in non-volatile memory
- Data can be retrieved and displayed by ground engineers via ground maintenance panel
Computer Select Switch
- In "AUTO" position, selects primary computer and automatically switches to secondary computer in case of failure
- Manual selection of either computer is possible
Display Brightness
- Controlled by inner knob for display intensity and outer knob for display brightness
Thrust Reference Set Switch
- Allows selection of reference cursor on thrust indicator display (EPR or N1) for engines
Alert Messages
- System continually monitors over 400 inputs from engine and airframe systems
- Up to 11 alert messages can be displayed on the upper display unit
- Three levels of alert messages:
- LEVEL A: Warning (red, immediate corrective action required)
- LEVEL B: Caution (amber, immediate crew awareness required)
- LEVEL C: Advisory (amber, crew awareness required)
Maintenance Control Panel
- Used by maintenance engineers to display maintenance data stored in system's computer memories
- STS switch permits manual selection of status message if no warning is displayed
- RCL switch enables recall of previously cleared warning messages
Engine Indicating & Crew Alerting System
- Basic system comprises two display units, a control panel, and two computers
- Computers are designated "Left" and "Right" and only one is in control of the system at any one time
- System provides flight crew with information on primary engine parameters, secondary engine parameters, and advisory/caution/warning alert messages as required
Test your knowledge of the ECAM Advisory Mode in aircraft systems. Learn about the different failure modes, classification levels, and crew actions in response to warnings and emergencies.
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