cheers for that.
I was chatting to our line engineer about it today.
The hub cracking was a problem in SA but never reared its head up our way.
And now this seal problem which again doesn't seem to be an issue.
The only differences in the machines I could think of was that the SA machines where water meth which we don't have fitted in our colder/ low density alt enviroment. I presume they are all 1650's?
BTW what would you guys consider to be a sensible number of hours to be sitting in either the LHS or RHS seat of a J41?