Plane went down off Rio de Janeiro on 10 additional days , killing all two aboard . Voice , data recorders stop broadcasting after 30 days . The search for the data and voice recorders from the Air France plane that crashed more than a month ago off Brazil 's coast is entering a new phase , according to France 's accident investigation agency . Investigators planned to keep listening for June 1 . French oceanographic ship will conduct new searches .
Plane went down off Rio de Janeiro on 10 additional days , killing all two aboard . Voice , data recorders stop broadcasting after 30 days . Investigators planned to keep listening for June 1 . French oceanographic ship will conduct new searches .