I have searched pprune and cannot find any reference to this paper. It does seem that the search is not working, but maybe I am not driving it properly?
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DEEP OCEAN SEARCH PLANNING:
A CASE STUDY OF PROBLEM SOLVING
In late 1987 a Boeing 747 of South African Airways crashed into the Indian Ocean after an onboard fire.
Seems to me a but self congratulary but also seems to have a lot of good material. I read it a few days ago but the circumstances seem very similar to the AF447 and they found one of the recorder after about a year. I am not sure what the bottom was like but the depth was similar.