Originally Posted by
remi
I think you have the sense reversed here. A change in law was required to give Boeing the waiver(s).
I'm sure that over the years countless such changes for specific regularly situations have been made. Low profile of course.
No, I'm quite aware that the legislation allowed the waiver (and that the legislation resulted as part of Congressional activity in the aftermath of the two crashes).
What I asked is whether any other specific items of avionics or subsystems have been identified in legislation. If the instances are so many as to warrant referring to them as "countless", let's see some examples.
The closest comparative situation I could cite would be the "Special Conditions" included in the certification of the 787, with regard (for example) to the lithium-ion batteries. But of course those Special Conditions were authorized by the FAR (
afaik) and in any event not specifically introduced to the certification process by Congressional legislation identifying them by name.