No requirement for AF 447 "Black Boxes"!
A swept wing aircraft will pitchup in an updraft. CAB Report SA-372 File No. !-0006. Quote: page 16, "The ultimate effect of an updraft is an altitude and noseup increase."
The FLIGHT ENVELOPE PROTECTION PROGRAM will counter the pitchup by pushing the nose over into a dive attitude to protect the aircraft from what it interprets as a stall threat! The pilot will instinctively pull the aircraft's nose up to recover from the dive!. Note; The QANTAS Flight QF72 incident repeated this sequence twice, with numerous passenger injuries!
When you add severe turbulence and massive thunderstorms in the area, there is little doubt what the Flight Data Recorder (FDR) Chart would look
like!