Info from Germany
Hi Stuart,
for privat used aircraft in Germany there is no 12 year life time
limit and also no TBO hour limitation, you fly it on condition (my O200 is now 16 years old).
If your aircraft is already in the german register,
leave it there. Itīs no problem. As non-german you
are legaly allowed to own an airplane registered in Germany.
The only thing that have to be done by a certified person
in germany is the annual inspection (costs me 250 each year).
Maybe I could helf you a little.
Joachim