Originally Posted by
averow
Journalist Jon Ostrower ( @jonostrower) on Twitter has discussed this issue in an article on his website
www.theaircurrent.com .
The article suggests that Boeing’s software fix for this latest problem will be to share the load over a number of processors rather rewrite the code for the current dedicated microprocessor. This approach will inevitably prolong the certification process as the testing will have to be much more rigorous (and therefore time consuming) to ensure that the problem of processing overload is not pushed down the road into another part of the system.
The risk with that approach is that it may throw up further problems. If trim response is delayed by seconds rather than milli or microseconds, that suggests that there’s not a great deal of headroom in parts of the system.
It may not be just the 737 airframe which has been repeatedly modified beyond its useful life. 😵