So, assuming we have a wrecked airplane located in international waters or in terra nullis (is any of both terms making a difference?):
- Who can own the remains of the ship and cargo? Can anybody claim them if found?
- Is there any difference between floating debris (for international waters) and sunk debris?
In my original question it has been answered that ICAO Annex 13 covers the case of civil airplanes, countries belonging to ICAO and accident investigation (so not fully covered). My understanding is that the "State of Registry" or the "State of the Operator" will make the decision of who owns the remainings afterwards.