It is perhaps unlikely that any QAR mem cards were recovered intact. Not only do these provide a lot more data than DFDR`s, they also help avoid incidents and accidents, particularly when it comes to non reported systems glitches.
Just as about as helpful as your computer windoze error log with no linking to the exact time and what your were trying to do at the time even though they often survive if you have the wherewithal to search for them.