Safetypee, you are correct, by "responsible" I meant those with the legal and financial authority and responsibility to effect the transfer for all involved parties.
I have no idea if fireproof identification plates include ownership details - sounds a bit messy to me where that information can be a simple change to the involved countries aircraft registers.
I would be surprised if major aircraft manufacturers and regulatory authorities would not have a solution to this dilemma. In our country a "Permit to Fly" would not work as it is only valid within our national boundaries, but regulatory authority legal departments seem to have regulatory escape clauses when necessary.
For example, I am sure that uncertificated airliners, on an experimental certificate, seem to be able to roam the worlds airspace at will, particularly if there is a marketing promotion at a major airshow.
The fine detail, I have no knowledge of, "export CofA" cancelled enroute? Who knows....
Last edited by zzuf; 16th December 2017 at 11:26.