My Bonanza A36 has been affected by this problem. I purchased a low hours plane (500 hours) and put it on the N reg but last year decided after al the N reg fuss to move it back to the G reg to try to tow the european line and had a top end overhaul done at the same time at a cost of many thousands of pounds. During the transfer process the CAA dropped the bombshell that I now need a new engine as it was 12 years old which I was not best pleased about but then agreed to a 20% extension so I have about another 18 months and then I can
a. use it entirely privately (which wont work as I rent it to myself and a couple of others)
b. Buy a new engine despite my current one probably only being on 800 hours and just been part overhauled
or
c. Go back to the N reg. I will probably choose this option as I wont be able to afford anything else.
I am staggered at the outrageous rule mongering that makes peoples life hard for no justifiable reason. I do not believe that the U.S. does not care about safety and they have a much larger G.A Fleet than Europe to make these judgements on. W**kers make these rules up!