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ECAM
Also from: Electronic Centralized Aircraft Monitoring
Consists of 2 displays and the ECAM control panel. The upper display is the E/WD, and the lower screen is the S/D. The displays are turned on or off using the brightness controls. If a screen fails, the E/WD takes priority, and pages on the S/D are displayed by holding the associated pb sw on the ECAM control panel.
Interfaces
Data is input from aircraft system sensors around the aircraft into 3 DMCs. For the majority of systems, sensor data is supplied to 2 SDACs which process the data before sending it to the DMCs. Data is also fed to FWCs from aircraft sensors for red warnings, and from the SDACs for amber warnings.
Normally, DMC3 supplies the ECAM system, with DMC1 and DMC2 acting as backup.
Colours
White | titles and remarks |
Blue | action items |
Magenta | messages that apply to particular equipment or situations |
Green | normal |
Amber | abnormal requiring crew awareness but not immediate crew action |
Red | serious parameter exceedance and warnings requiring immediate crew action |
ECAM advisory
When a parameter approaches a limit, it will pulse (green - gray - green etc.).
ECAM caution
When a failure occurs leading to a loss of redundancy or a system not affecting safety, an amber message is displayed on the E/WD and the CLR buttons on the ECAM control panel illuminate. Pressing CLR clears the message and the status page is displayed automatically.
ECAM warning
A warning causes the MASTER WARN to illuminate and a continuous repetitve chime to sound, as well as a red message to be displayed on the E/WD.
Warning/caution classification
Level | Signification | Aural | Visual | |
Failure Mode | 3 | red, danger | continuous repetitive chime (CRC) or specific sound or voice | MASTER WARN, warning message, page displayed |
2 | amber, no direct consequence | single chime (SC) | MASTER CAUT, caution message, page displayed | |
1 | amber, loss of redundancy | none | caution message | |
Information | advisory | parameter monitoring | none | page displayed, parameter pulses |
memo | information | none | message |
Types of failures
Type | Description | Indication |
Primary | a failure that will affect other systems | boxed message |
Secondary | failures resulting from primary failures | message preceeded by |
Independent | failure affects an isolated system |
System pages
- ENGINE (secondary engine parameters)
- BLEED (bleed air pressure)
- CAB PRESS (cabin pressurisation)
- ELEC AC (AC electrical power)
- ELEC DC (DC electrical power)
- HYD (hydraulic)
- C/B (circuit breakers)
- APU (auxiliary power unit)
- COND (air conditioning)
- DOOR/OXY (doors/oxygen)
- WHEEL (landing gear, braking, ground spoilers, ...)
- F/CTL (flight controls)
- FUEL (fuel)
- CRUISE (cruise)