By now the black boxes of Flight AF447 pinging divices have certainly stopped sending out locator information. The investigators know the general location of the crash, but due to the vast size of the search area and the fact that the ocean is miles deep in those locaions, the black box, if found would be of little use. It could be corroded and the combination of the salt water and pressure would probably destroy the box before it could be found.
Investigators into the AF447 crash have made primary results known, blaming the pitot tubes, saying that they probably froze over and gave incorrect data to the auto-pilot.
Either way, the issues will need to be looked into.
I’m flying on Air France soon, I’m not overly worried as the Airbus is a superb machine, however, if the blog is not updated in the next 3 weeks, It could be, because I can”t get decent internet connection from beyond the grave 🙂