Originally Posted by
Notanatp
There seems to be an assumption in the article and in the comments that a retrofitted EICAS would have been likely to have prevented these two accidents. How realistic is that assumption?
How is the relation between EICAS and flight control systems with the capability of performing sensor fault insulation? (IAS, AOA, INS etc)?
I would assume that flight control systems able to perform fault insulation would require some kind of EICAS to provide status about what is going on inside the boxes. There are a limit on how much information that can be shown in the PFD.
And large aircraft with EICAS would normally also have fight control systems able to perform fault insulation and detect bit-flips.
Originally Posted by
Notanatp
In JT610.....Would EICAS have displayed a "Turn off the freakin electric trim" message?
No, it should have displayed a message indicating something like "CPT AoA fault" or "AoA disagree", and a list of affected systems, and actions to be performed.
The fight control system should have stopped using faulty data.