Yea I have one of those at the moment in the Right hand lung.
Mine is a pin hole leak in the back of the lung, god know how it got there but I don't

.
Took me forever to find it and would be impossible to get to to glue up as its about half way down the lung.
I gave in and have a new lung on its way over.
Cheers
Chriso
A drop of Aquaseal on the outside should fix it just fine.