Originally Posted by
zerograv
In reality the difficult problem is repossess the airframes. The rest, that is to say, re-enter a registry would be some work, but it is certainly doable.
Then (assuming the lessors have actually managed to repossess the aircraft) they just need to explain to the next potential lessee that the aircraft may have some counterfeit parts and components fitted, but it's probably OK to fly and anyway they'll be getting a good lease rate ...