PPRuNe Forums - View Single Post - 787 Batteries and Chargers - Part 1
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Old 18th Mar 2013, 18:54
  #1025 (permalink)  
Kiskaloo
 
Join Date: Feb 2013
Location: Seattle, WA
Posts: 78
@EEngr
Unfortunately, I suspect that once Boeing gets the fireproof box solution certified, the battery problem will be put on their back burner (figuratively).
I expect Boeing won't be in a position to wipe their brow and sit back and relax.

The failure rate of batteries once returned to service will need to return to the one-in-a-billion chance per flight hour as I believe that is the certification requirement.

Also, as it appears a failure of the APU battery triggers a failure of the APU, if the APU battery keeps failing at what is considered too high a rate, the 787 will not be able to be certified beyond ETOPS-180 and that is going to cripple it with operators like QF, NZ and others who were planning ETOPS-240 or ETOPS-330 missions.

Last edited by Kiskaloo; 18th Mar 2013 at 18:55.
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