Indicating/Recording Systems Flashcards
Describe the organization of the Electronic Instrument System (EIS).
▪ Six identical cathode ray tube Display Units (DUs) in two parts:
▪ Electronic Flight Instrument System (EFIS):
• Two Primary Flight Displays (PFDs) – normally displayed on the outboard DU.
• Two Navigation Displays (NDs) – normally displayed on the inboard DU.
▪ Electronic Centralized Aircraft Monitor (ECAM):
• Engine/Warning Display (E/WD) – normally displayed on the Upper ECAM.
• Systems Display (SD) – normally displayed on the Lower ECAM
Describe the components of the Air Data Inertial Reference System (ADIRS).
▪ Three Air Data Inertial Reference Units (ADIRUs), each divided into two units:
• Air Data Reference (ADR) Unit – processes pitot-static information.
• Inertial Reference (IR) Unit – processes attitude, positional, and wind data.
• ADIRU 1 supplies information to the CA’s PFD and ND.
• ADIRU 2 supplies information to the FO’s PFD and ND.
• ADIRU 3 serves as a backup.
Describe the general displays of the E/WD.
▪ Primary engine operating parameters - N1, N2, EGT and Fuel Flow ▪ Supplemental operating information: • Thrust limit mode • Fuel on Board (FOB) • Slat/Flap position ▪ Memo section: • Normal and non-normal operations, including checklists. • Class 1 ECAM messages.
Explain the color coding convention on the E/WD. ❇️Green? ❇️White? ❇️Blue? ❇️Amber? ❇️Red? ❇️Magenta? ❇️ Amber Xs?
- Green – normal, long-term operation.
- White – remarks and labeling guidance for procedures.
- Blue – units of measure and ECAM action steps.
- Amber - failure or configuration needing crew awareness, but not necessarily immediate action.
- Red – a failure or configuration requiring immediate crew action.
- Magenta - informational messaging.
- Amber Xs – information not available.
What is the EFIS Display Unit (DU) priority in the event of a screen malfunction?
▪ The PFD takes priority over the ND.
▪ If the outer DU is turned off or fails, the PFD automatically transfers to the inner DU.
What is the ECAM Display Unit (DU) priority in the event of a screen malfunction?
▪ The E/WD (upper ECAM) takes priority over the SD (Lower ECAM).
▪ If the upper ECAM DU is turned off or fails, the E/WD automatically transfers to the lower ECAM DU.
What are the functions of the ND brightness control knobs?
The inner knob?
The outer knob?
▪ The Inner knob is used to power and vary the brightness of the respective ND.
▪ The Outer knob is used to vary the brightness of:
• Weather Radar displays and
• GPWS displays
Explain the functions of the three Display Management Computers (DMCs).
▪ The DMCs process signals received from the sensors and computers within the aircraft for display on the DUs.
▪ DMC 1 provides information to the CA’s PFD, ND, and the E/WD.
▪ DMC 2 provides information to the FO’s PFD, ND, and the SD.
▪ DMC 3 serves as a backup to either DMC 1 or DMC 2.
What accompanies an independent failure message?
▪ Independent – A failure that affects an isolated system or item without degrading the performance of other systems or components:
• Presented in the left column of the E/WD memo section.
• Affected system is underlined. Example: – F/CTL, HYD, ELEC.
• Specific failure follows the affected system. Example: F/CTL ELAC 1 FAULT.
What accompanies a primary failure message?
▪ Primary – A failure that affects the use of other systems or components:
• Presented in the left column of the E/WD memo section as a “Boxed Item”
What is the significance of a secondary failure?
Secondary – Systems or components affected as the result of a Primary failure:
• Presented in the right column of the E/WD memo section in amber.
What would be the indications of a Display Unit (DU) failure?
▪ A failed DU will flash, go blank or be distorted.
▪ DUs are not monitored by the FWCs, so there will be no ECAM messages.
What is the function of the STATUS page and when is it displayed?
▪ Located on the SD.
• Provides a summary of the aircraft’s operational status and capabilities as it relates to an existing malfunction/s.
▪ Displayed by:
• Pressing the STS pb on the ECAM control panel.
• Automatically when FLAPS 1 has been selected in the approach phase of flight (provided that a malfunction/s continues to exist)
• Automatically as part of the ECAM non-normal procedure. The STAUS page is the last page displayed when sequencing through an ECAM non-normal procedure.
NOTE: A white boxed STS indication appears at the lower portion of the E/WD whenever information exists on the STATUS page.
Describe the functions of the SWITCHING panel.
▪ ATT HDG?
▪ AIR DATA?
▪ EIS DMC?
▪ ECAM/ND XFR?
▪ ATT HDG – selects IRU 3 for attitude and heading information when IRU 1 or 2 fail.
▪ AIR DATA – selects ADR 3 for pitot-static information when ADR 1 or 2 fail.
▪ EIS DMC – selects DMC 3 when DMC 1 or 2 fail.
▪ ECAM/ND XFR – transfers the SD (lower ECAM) information to the CA’s or FO’s ND screen.
What is the function of the CLR pb on the ECAM control panel?
▪ CLR pbs
▪ Used to clear failure messages and sequence through the SD pages during an ECAM non-normal procedure.
▪ With multiple failure messages displayed, pressing the CLR pb will remove (clear) the first message and all its associated action steps.
What is the function of the RCL pb on the ECAM control panel?
❇️RCL pb
▪ Used to recall failure messages previously cleared by the CLR pbs that are still active.
▪ If there are no cleared messages, “NORMAL” appears on the E/WD memo section.
▪ If held for more than 3 seconds, the E/WD displays any CAUTION messages that were canceled by the EMER CANC pb.
What is the function of the T.O. CONFIG pb on the ECAM control panel?
❇️TO CONFIG pb
▪ Used to test the Takeoff Warning system.
▪ Simulates the application of takeoff power.
▪ Generates all warnings associated with the aircraft not correctly configured for takeoff.
