In EFIS, in case of failure in the PFD, where would be PFD shown? In case of failure in the ND, where it would be shown? In case the PFD & ND both fail, where would they be shown?
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$\begingroup$ The pilot and copilot PFD's are separate systems, if the pilots PFD fails, the copilot PFD should still be operational. The screens can be switched on either side but if they both failed for some reason the pilot with working displays will probably assume control. $\endgroup$– Ron BeyerJan 15, 2017 at 16:04
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$\begingroup$ Are you asking about failure of the display itself? $\endgroup$– TomMcWJan 15, 2017 at 16:30
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$\begingroup$ Yes, I am asking about in case of one or two of these displays fail what is the situation ?! $\endgroup$– Al YaqdhanJan 15, 2017 at 17:52
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$\begingroup$ I've seen document on captainpilot.com, which described this for A320 too, but the site is down. $\endgroup$– Jan HudecJul 7, 2017 at 20:57
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1 Answer
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On the Embraer 170/190-series, the normal display layout is as follows:
There is an automatic display reversion logic when one or more panels fail. The following image shows this logic:
There is also a manual reversion switch located near each pilot's outboard knee, which controls what is displayed on the panel:
All images sourced from an Embraer Airplane Operations Manual.
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$\begingroup$ What will the MFD contains in case of failure ? and can you label the priority of the displays from the Most significant until the Less significant displays ? $\endgroup$ Jan 15, 2017 at 17:43
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2$\begingroup$ A failed display will be blank. As you can see by the system logic that the PFD is given the highest priority, then the EICAS, and finally the MFD. $\endgroup$ Jan 15, 2017 at 18:18