megle2 i think you're correct - I have been wracking my brain trying to recall it. I was at HP when it was sold, seem to recall the old fella who owned it had passed away and it was being sold by his son who was a QC. Before it could be imported into the US it needed the props overhauled because they were over on calendar time, and an expensive MSB on the bleed air system which hadn't been done because it was not an AD.
Seem to think it was about 1990. The QC was pleased to be rid of it.
I liked the looks of the F90. Apart from the T tail mentioned it also had dual main wheels like the 200.
VH-WJT was Waugh and Josephson, or was it Johnson? Waugh and Joeys - as described by megle2.