Interesting info.
FSOV and power glitch. No dedicated power source for fuel shut off valve?
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Yes there is a back up power source.
But the guy is full of shit, the Spar valves aren't spring operated, they are motor operated.
If they were spring operated they wouldn't need backup power supply.
8:22 of the video, this guy is making claims based on 2nd hand knowledge and Googles AI search.
The automatic shutting off of fuel supply during power failure is obviously stupid and Boeing does not design the system to do that.
The 787 is a wonder of electrictricky and software, there was a tonne of issues with software when it first came out, there would be new software to load almost everyday for the first year or so of service. Many of the new electrical things that used to be Bleed air powered have proven to be less reliable than Bleed systems, and much of the electical system can, and does give grief.
BUT, the FADEC/EECs on the engines are old technology that has been around since the 80s, simple stuff like fuel systems, spar valves, heat exchangers, hydraulic pumps, electrical generators, etc are all just updates on older technology. In many cases new cars have far more electrical wizardry that a 787 does.
Most of these video on YouTube are by completely clueless people usign 2nd hand information, or a Pilot who has read the FCOM and spoken to some engineer/mechanic (who himself probably can't remember exactly how the system works from their training 10 years ago).
I've not watched much of Stig Aviations videos, but from what I have watched he has made some errors in the information he has given, so even there none of the info on YouTube is 100% accurate.
