Well, the first thing which came into to my mind when I heard that the Airbus crashed after a high rate of descend from cruising altitude, was the crash of Air France Flight 447 back 2009, due to frozen pitot tubes/sensors. This seems to be still an issue, a Lufthansa crew reported a similar issue with an Airbus a few month ago. However since the crew was able to recover the aircraft and prevent a crash it wasn't reported on the mainstream media/news.
Air France Flight 447 - Wikipedia, the free encyclopedia