I don't agree that such a failure condition (common mode or single point) need be considered catastrophic
I agree it can be recovered, and it is a survivable failure if the environment is benign, as has been shown. Nighttime, no moon, CBs up the wazoo is a different matter.
What's strange though is the recent rash of documented problems. Why now all of a sudden and why the A330?
I'm puzzled.....
24V