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? Display aircraft system information
? Monitor aircraft systems
? Indicate required flight crew actions, in most normal, abnormal and emergency situations.
As the ECAM is available in most failure situations, it is a significant step in the direction towards a paperless cockpit and the reduction of memory items.
MAIN PRINCIPLES
Applicable to: ALL
INFORMATION PROVIDED WHEN NEEDED
One of the main advantages of the ECAM is that it displays applicable information to the flight crew, on an "as needed" basis. The following outlines the ECAM’s operating modes:
? Normal Mode:
Automatically displays systems and memos, in accordance with the flight phase.
? Failure Mode:
Automatically displays the appropriate emergency/abnormal procedures, in addition to their associated system synoptic.
? Advisory Mode:
Automatically displays the appropriate system synoptic, associated with a drifting parameter.
? Manual Mode:
Enables the flight crew to manually select any system synoptic via the ECAM Control Panel (ECP).
Most warnings and cautions are inhibited during critical phases of flight (T/O INHIBIT – LDG
INHIBIT), because most system failures will not affect the aircraft’s ability to continue a takeoff or landing.
FAILURE LEVELS
The ECAM has three levels of warnings and cautions. Each level is based on the associated operational consequence(s) of the failure. Failures will appear in a specific color, according to a defined color-coding system, that advises the flight crew of the urgency of a situation in an instinctive, unambiguous manner. In addition, Level 2 and 3 failures are accompanied by a specific
 

  OPERATIONAL PHILOSOPHY
ECAM
A318/A319/A320/A321
FLIGHT CREW TRAINING MANUAL 

aural warning: A Continuous Repetitive Chime (CRC) indicates a Level 3 failure, and a Single Chime (SC) indicates a Level 2 failure.
Failure Level Priority Color Coding Aural Warning Recommended Crew Action
Level 3 Safety Red CRC Immediate
Level 2 Abnormal Amber SC Awareness, then action
Level 1 Degradation Amber None Awareness, then Monitoring

When there are several failures, the FWC displays them on the Engine Warning Display (E/WD) in an order of priority, determined by the severity of the operational consequences. This ensures that the flight crew sees the most important failures first.
FEEDBACK
The ECAM provides the flight crew with feedback, after action is taken on affected controls:
? The System Synoptic:
Displays the status change of affected components.
? The Memo:
Displays the status of a number of systems selected by the flight crew (e.g. anti ice).
? The Procedures:
When the flight crew performs a required action on the cockpit panel, the ECAM usually clears the applicable line of the checklist (except for some systems or actions, for which feedback is not available).
　
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本文鏈接地址：A318/A319/A320/A321 機組訓練手冊 FCTM Flight Crew Training Manual(31)