29 Questions
What is the primary function of the EICAS display units?
To provide a wide variety of information relevant to engine operation and other automated systems.
What is the purpose of the 'Vs' that appear on the upper display unit?
To indicate that the lower unit is displaying secondary information.
What is the purpose of the three display modes described in the text?
To categorize the displays and alerts according to their function and usage.
What is the purpose of the Operational mode described in the text?
To display information about the aircraft's engine operation and any alerts that require action from the crew.
What is the purpose of the Secondary EICAS Display described in the text?
To display information about the aircraft's non-engine systems, such as fuel flow, oil quantity, and temperature.
What is the purpose of the Maintenance mode described in the text?
To display information that is only relevant to ground crew during maintenance.
What is the purpose of the manual event marking switch?
To manually record a suspect malfunction for storage in non-volatile memory
What is the purpose of the Computer Select Switch?
To select the primary computer and switch to the backup in case of failure
How are the display brightness and intensity controlled?
The inner knob controls the display intensity, and the outer knob controls the display brightness
What is the purpose of the Thrust Reference Set Switch?
To set the reference cursor on the thrust indicator display for the selected engines
What is the purpose of the Max Indicator Reset button?
To clear the alerts from the display when the measured parameters exceed normal operating limits
What is the primary function of the auto event recording feature?
To automatically record any malfunctions as they occur in the aircraft systems
What is the main difference between ECAM and EICAS?
ECAM displays information in a checklist and pictorial format, while EICAS displays information in a text-only format.
How are the ECAM display units typically arranged?
The display units can be arranged either side-by-side or top-to-bottom.
What is the purpose of the right-hand/bottom ECAM display unit?
To display associated information in pictorial or synoptic format.
What are the four display modes of the ECAM system?
Phase-related, advisory, failure-related, and system-specific.
Which ECAM display mode is used during normal aircraft operation?
The automatic flight phase-related mode.
What is the primary purpose of the STATUS MODE in the EICAS?
To display data related to the dispatch readiness of an aircraft
What is the purpose of the STS switch in the crew alerting system?
To manually select an aircraft's status message if no warning is displayed
Which of the following is NOT shown on the display in STATUS MODE?
Maintenance information for fault finding
What happens when the RCL switch is pressed?
It recalls previously cleared warning messages, provided the failure conditions still exist
What components make up the basic engine indicating and crew alerting system?
Two display units, a control panel, and two computers
When is the STATUS MODE selection typically done?
On the ground, as part of pre-flight checks or before shutdown
What is the purpose of the MAINTENANCE MODE in the EICAS?
To provide maintenance engineers with information for fault finding and verification testing
How are the left and right computers in the system designated?
Left and right
What types of information does the crew alerting system provide to the flight crew?
Primary engine parameters, secondary engine parameters, and advisory/caution/warning messages
Which component of the EICAS Control Panel is used to remove or present the display of secondary information on the lower display?
Engine Display Switch
What is the function of the Status Display Switch on the EICAS Control Panel?
To remove or present the status page on the lower display
Which of the following is NOT mentioned as operating in conjunction with the crew alerting system?
A backup display unit for redundancy
Study Notes
Event Record Switch
- Normally, an auto event function records malfunctions automatically
- The push switch enables manual event marking for storing suspect malfunctions in non-volatile memory
- Retrieved data can be displayed by ground engineers using the ground maintenance panel
- Manual switch can also be used to record fault data in the air or on the ground for Environmental Control, Electrical Power, Hydraulic, and APU systems
Computer Select Switch
- In the "AUTO" position, it selects the primary computer and switches to the other in case of failure
- Other positions allow manual selection of either the right or left computers
Display Brightness
- Controlled by inner knob for display intensity and outer knob for display brightness
Thrust Reference Set Switch
- Pulling and rotating the inner knob positions the reference cursor on the thrust indicator display (EPR or N1) for selected engines
- Engine selection is done by the outer knob
Max Indicator Reset
- Alerts are displayed on display units if measured parameters exceed normal operating limits
- The reset button clears alerts from the display when excess limits no longer exist
STATUS MODE
- Displays data to determine dispatch readiness of an aircraft
- Closely associated with the aircraft's Minimum Equipment List
- Displays positions of flight control surfaces, selected sub-system parameters, and equipment status messages on the lower display unit
- Normally selected on the ground for pre-flight checks or prior to shutdown to aid in making entries in the aircraft's Technical log
MAINTENANCE MODE
- Provides maintenance engineers with information in five different display formats to aid in fault finding and verification testing of major sub-systems
DISPLAY SELECT PANEL
- Controls the operation of EICAS
- Located on the centre pedestal
EICAS Control Panel
- Engine Display Switch: a push-type switch for removing or presenting secondary information on the lower display
- Status Display Switch: a push-type switch for removing or presenting the status page on the lower display
DISPLAY UNITS
- Provide a wide variety of information relevant to engine operation and automated systems
- Upper unit displays primary engine parameters, warning and caution messages
- Lower unit displays secondary parameters, non-engine system status, and other information
DISPLAY MODES
- EICAS categorizes displays and alerts according to function and usage
- Three modes of displaying information: Operational, Status, and Maintenance
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
ECAM (Electronic Centralized Aircraft Monitoring)
- Differs from EICAS in that displayed data relates to primary systems of the aircraft
- Data displayed in checklist and pictorial or synoptic format
ECAM DISPLAY UNITS
- Can be mounted either side-by-side or top/bottom
- Left-hand/top unit displays system status, warnings, and corrective action in a sequenced checklist format
- Right-hand/bottom unit displays associated information in pictorial or synoptic format
ECAM DISPLAY MODES
- Four display modes: three automatically selected (phase-related, advisory, and failure-related) and one manual mode
- Manual mode permits selection of diagrams related to 12 aircraft systems for routine checking and selection of status messages
Flight Phase Related Mode
- Automatically selected based on current phase of aircraft operation
- Displays appropriate to the current phase of aircraft operation (pre-flight, take-off, climb, cruise, descent, approach, and post landing)
STS Switch
- Permits manual selection of an aircraft's status message if no warning is displayed
- Illuminates white when pressed and also illuminates the CLR switch
RCL Switch
- Enables previously cleared warning messages to be recalled if failure conditions still exist
- Pressing this switch also illuminates the CLR switch
- If failure no longer exists, "NO WARNING PRESENT" is displayed on the left-hand display unit
Learn about the differences between ECAM and EICAS, the primary systems displayed in checklist and pictorial formats, and the configuration of display units. Explore the dedicated left-hand/top unit which provides information on system status, warnings, and corrective actions.
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