That would be a unique case, can you find out for sure?
The '07 FJ and 4Runner, with a single 2008, have made up all of the stretched timing chain cases I found while researching my problem. If this happened on a well-maintained 2009 it would counter the thinking on a bad batch of timing chains as the root cause.
Very interested to know the year of his FJ if you don't mind finding out...
It's an 08. So very interesting coincidence.....