Originally Posted by
madrock
However, none of these monitoring systems can detect a situation where the heater might be working perfectly, and yet unable to keep up with ice accretion in a particular environmental scenario due to a design flaw.
So is there any work being/can be done to address ?
The heater controller maybe can't tell when it's being overwhelmed by outside spec icing conditions (or an undetected heater failure or a "design flaw") but there is a system which can detect the consequences - the ADIRU miscompare messages are telling you that the data is beoming unreliable. Since there's not a lot you can do to rectify the situation other than switch to (hopefully functional) alternate sources.