The answers are in the CVR.
And, if the CVR or FDR are not recovered, what do you propose? Might I suggest caution be used prior to sticking you head in the sand. There is a serious problem associated with the simular repeated incidents experience with this airplane.
No, waiting for the recovery of the CVR is not the answer. I urge all to continue looking elsewhere. Why close the thread simply because no one wishes to thread on more sensitive issues?