I'm just not so sure this particular fix will cut it for EASA. I think they have significant extra work ahead of them after the FCC fix. The MAX return to flight may be ultra long haul.
The most interesting thing about the article being discussed is that EASA has provided a list of things Boeing needs to address. Up to this point their concerns were open ended if not nebulous. From my point of view this probably bounds the amount of time that 737 will be grounded. Their list of concerns may be changed with time, but as an engineer I'd rather have a list of things to address than to just be looking at various things wondering if that's what the regulator is concerned about.
If that list doesn't concern you I doubt what list will. A lot of them are hardware issues. The heavy trim wheel, how to address that? Unreliable AoA sensors? I read that as 2 = not enough, not issues with the AoA sensor itself. And all these software and hardware issues will be addressed in two months?
Please read without embellishing: I'd rather have a list of things to do rather than no list and finding myself spending my time trying to guess what the regulator thinks I need to do.
We're reading this list for the first time now, we have no idea how long Boeing has had this list in full or in part. We do know that all involved claim they have been working together all along. As much as some here want to see the regulators drop the hammer on Boeing, we do know there is a steady flow of questions and answers going back and forth.
The Bloomberg piece offers some perspective that seems to be lacking here:
“Any of these could significantly affect the return to service, but we don’t know if they are actually going to become requirements or are they just items for discussion,’’ said John Cox, a former 737 pilot who is president of the aviation consulting company Safety Operating Systems.
Cox said that such questions between regulators are the norm during aircraft certification work and may not pose new risks for Boeing.
People here seem to be assuming some worse case scenarios without knowing what the letter says. I am a systems software expert and I know that some of the suggestions here relative to my area of expertise are laughable. I am not an avionics or flight control specialist but I can imagine the same may be true in those spaces.
Relative to the back in service date, I believe Boeing indicated after they got dinged by the FAA, they said September would be the date for providing paperwork to the FAA, so in service would be 2-3 months after that if all went well.
That may be, but that is not what the Bloomberg report says, which is:
Boeing has been telling customers and others in the industry that it expects the plane will be returned to service by September. That timetable includes fixing the software implicated in the two crashes as well as the latest flaw identified with the microprocessor, said a person familiar with the company’s guidance.
Ref: https://www.bloomberg.com/news/articles ... -fly-again