The parking brake on this aircraft can be moved on and off, but the brake doesn't seem to hold at all.   

Anyone else have this problem?

 

Thanks,

 

JOHN

I have the same issue.  Every time I choose a new airport, I am rolling and accelerating, with parking brake on.

Well, maybe I found the solution - I hit shift 8 and selected either the 'Cold & Dark' setting, or 'Ready for Taxi'.  Seems to have worked.