Why would that be -- black box union rules or is it on vacation or having its period??? :)
The black box AIUI is designed to start pinging when it goes into water. So if it is working as designed and the plane went into the water 2 weeks ago, then it has already been pinging for 2 weeks.
Well ... you see ... that’s the assumption that some people make that we have no way of knowing if it’s a fact or not. We don’t know - for a fact - if the conditions exist for setting off the black box.
It’s one of the speculations as to what happened. It’s only speculation at this point in time.