Have you tried contacting P&O directly and finding out what happens to their archived information? I know that the privacy laws hold us back from view certains information up to a certain date but I don't know off hand how the passenger lists fall into this catagory.
I use to run around the Oriana as a child as my Uncle worked on it and I was always under the impression that P&O owned the vessel before it was sold off in the early 80's. If they did you could contact them and ask directly where they go and who holds them and if they have already been moved to the NAA then you could ask them if they are allowed to be viewed since they are not on the system as yet.
I do feel for you as I am searching for the passenger list of the FAIRSEA 04 April 1963. I too have come up against a wall.
Esposa
My father come into argentina in orania ship among his families in 1929
I am looking for passenger lists on 1929
Salute
Carlos
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