Isn't it amazing that it came down to a crack in a solder joint. They could not find it in twelve months of line operations but they were able to dig it out of the mud and find the offending circuit board AFTER the crash.
I notice Mr Thomas is indirectly criticising CASA as he believes Indonesian Airlines should not be allowed into Australia (by CASA). If I was CASA I would asking questions of the media about his "expert" status. This status has a very specific meaning in a court room, less so in the real world but even so he has turned it into a meaningless phrase.