Steam at Wolverton Works

[Deltic1]

As many will have seen, A4 60009 Spent 2 weeks at Wolverton Works recently following tender hot box issues, and a couple of questions came to mind:

Does anyone know if this is the first steam engine to visit since the 1988 open day when 46201 was displayed?

Is this the first A4 to visit the works?

Many thanks to anyone able to offer any further infomation or recollections.