Complex Systems Task

Complex system means having a wide variety of inputs. There may be a single output, or many distributed outputs from the system. . The system typically performs complex modifications on these inputs, or the inputs may trigger complex responses. There may be a single output, or many distributed outputs from the system.
All large modern aircraft can be described as complex systems. 
Within these aircraft, there are a myriad of separate systems, many of which themselves may be considered complex, e.g. flying controls, landing gear, air conditioning, flight management computers. 

Maintaintenance of   complex systems,  the engineer will need to have carried out some form of system-specific training which would have furnished him with an understanding of how it works (and how it can fail) and what it is made up of (and how components can fail).
 It is important that the engineer understands enough about the overall functioning of a large, complex aircraft, but not so much that he is overwhelmed by its complexity. 
System-specific training must achieve the correct balance between detailed system knowledge and analytical troubleshooting skills.
Written procedures and reference material  important source of guidance than with simple systems.
 Procedure describe comprehensively the method of performing maintenance tasks, such as inspections, adjustments and tests. They may describe the relationship of one
system to other systems and often, most importantly, provide cautions or bring attention to specific areas or components. 
It is important to follow the procedures to the letter, since deviations from procedures may have implication on other parts of the system of which the engineer may be unaware.

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