This news story out today about a class action commenced in USA against Airbus as well as Northrop-Grumman (the maker of the ADIRU):
http://www.abc.net.au/news/stories/2...20/3015989.htm.
The 'evidence' they apparently plan to use is the second interim ATSB factual report at:
http://www.atsb.gov.au/media/1363394...8070_ifr_2.pdf
The action has been filed now before the 2 year statute of limitations expires on 7 October.