PPRuNe Forums - View Single Post - 787 Batteries and Chargers - Part 1
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Old 9th Mar 2013, 04:46
  #897 (permalink)  
USMCProbe
 
Join Date: Mar 2011
Location: china
Age: 56
Posts: 321
I believe on most airliners, if the batteries are shut off (offline) one way or another, the APU shuts down due to the APU ECU being unpowered. I did it by accident on a 320 a year ago. APU's generally have auto shutdown features, at least on the ground, as well. In the air, usually the crew has to shut it down.

I can't verify this for the 787, but since they are all certified under similar standards, I would guess it would be the same. Engine Fadec's a lot of time have their own Fadec generators that power themselves under normal circumstances, and use ships power if those generator's fail.

I haven't been reading much other than the NTSB stuff. Since they are replacing the whole "battery system", I would guess that they really don't know what the causal factor(s) was. If they had found the cause, they would just fix the singular problem.
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