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A comment on Citing a serious flight test incident, FAA slows Boeing 777X certification. Parent comment

Re:Citing a serious flight test incident, FAA slows Boeing 7... by WalterBright on Sunday June 27, 2021 @07:16PM (#27656372)
Of course, but the specifications are normally written by Boeing, and the implementation is outsourced. The reason is the system as a whole has to function, meaning the spec has to be written by the team that has knowledge of the whole system.

MCAS interfaces with quite a few other systems on the airplane.

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Re:Citing a serious flight test incident, FAA slows Boeing 7... by _ph_ on Monday June 28, 2021 @02:31AM (#27658720)
Even a good team can convince itself, that it is right. It would have added a "second set of eyes", if the implementors of MCAS had their own expertise in aviation. No guarantee, but a chance of spotting the problems with the spec.
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