Re GD's fatal, and some of the adverse history in general, I think that some of the posters really need to do some homework before making silly statements such as seen in this thread.
Unfortunately, Donovan was in the wrong spot at the wrong time. A TP mate had been along on the previous circuit and then watched the prang .. not his fondest recollection.
Tailplane cracking was a well known problem (all Types have their problems) and subject to an inspection regime. The last factory inspection on that particular serial prior to its return to the military was made by a long term colleague of mine (Russ K) whose integrity was not in question ... I might note, he carried the worry that he may have missed the start of some cracking to his grave. It would have helped had the military subsequently not elected to defer an inspection sometime prior to the crash .. that inspection very likely would have picked up the accelerated deterioration and avoided Donovan's death.