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Expert Survey - page 10 of 15


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Automation recommendations or actions are based on only a few key variables. An automation device lacks full situation awareness and may advise or act inappropriately, especially under unusual conditions. (pc120)




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Criticality results
Automation design often does not take into consideration the operational knowledge of pilots. This may lead to designs that are counter intuitive to pilots, increasing pilot workload and the opportunity for error. (pc121)




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Criticality results
Automatic flight control systems use a different strategy of control than the pilot, leading to the pilot's loss of situation awareness and pilot errors. (pc122)





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Criticality results
It is too easy for the pilot to disengage the autopilot. When this happens, control may be lost. (pc123)






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Criticality results
Computer based automation makes the aircraft more complex and tightly coupled (i.e., there are many components, they are strongly linked, and failures may propagate more readily). This increases the likelihood of accidents. (pc124)




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Criticality results
Although automation may do what it is designed to do, design specifications may not take into account certain unlikely but very possible conditions, leading to unsafe automation behavior. (pc125)




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Criticality results
The ability of the automation to perform correctly and quickly is limited by design constraints, in some cases increasing pilot workload and the opportunity for error. (pc126)





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Criticality results
The fundamental reasons for the increasing use of automation are to decrease the cost of flight operations. If these considerations receive excessive emphasis in the aircraft design process, safety may be compromised. (pc127)




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Criticality results

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