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Old 27th Apr 2015, 20:44
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B737SFP
 
Join Date: Sep 2014
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Hi Pin...

Here goes my 2 cents:

EECs needs to monitor a variety of parameters to do his magic, right ?

Unfortunately, some of the information used by the EECs is delivered by the DEUs.

A DSPLY SOURCE indicates a DEU problem... This way, EECs will lack some of the information needed and will initially revert to SOFT ALTERNATE (using the last valid parameters as reference).

Hope that helps !
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