Originally Posted by
Super VC-10
If you are referring to speculation about tail wheel being unlocked. Yes and no.
They mention in your link that: «The tailwheel locking pin was found in place and was sheered into multiple pieces»
Which means that at some point their tail wheel became free casting as its shearing locking pin did its job by breaking under heavy side load tensions.
It is pretty obvious it happened during their take off roll while trying to straight things up.