Yeah, at least talk to a lawyer that specializes in this kind of law, i.e.
leases, bad debit, and abandonded property at a lease site.
A hour's consultation shouldn't cost much more than $100 and you can find
out what you really need to do in your jurisdiction, which can vary not
only by state but also by county.
That an airplane is involved is very likely irrelevant.
--
Jim Pennino