Hi Fursty.
As always with Airbus the FCOM tells half the story so you may well be correct, but it doesn't sound right to me. The AMUs are powered by the DC ess 'main bus,' the DC ess shed bus doesn't power much of too much interest apart from wing anti ice. I would have thought with a shed bus fault it would just go ahead and shed itself! If the bus is shorted out I don't see how you could recover it.
What is obvious is that if we can even debate this, something is up with knowledge or training about this. If there is actually a way to recover communications in affected aircraft that haven't been retrofitted, there should damn well be an OEB about it until ECAM could be updated to reflect the new procedure or Ifixplanes proper fix can be done.
This only affects 3 aircraft in our fleet, but goddam, it is a good gotcha.
Cheers, Tom.
Last edited by tom775257; 24th Jan 2013 at 15:13.