I've looked at this report but i had time as i was working a long night shift

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One surprising thing caught my land-lubber eye:
The true weights and the disposition of the vessel’s cargo were not known. 
Strange.
Yes this one is strange as i know most or nearly all ferries give the weights of the cargo on the deck forward,midship and aft this is then put into the on board computer system to ballast the ship before she sails, also all radio communications are recorded onto the black box also all voice conversations are recorded to.