Originally Posted by rgbrock1
Then I'll ask a different question somehow related. Until AF447 what was the deepest of any wreckage of an aircraft which was successfully located and subsequently recovered? And, where?
SAA 295 in 1987 (Indian Ocean, near Mauritius); wreckage was successfully recovered from a depth of 4,900 metres (16,100 ft)—the deepest successful salvage operation ever conducted and I believe Aerolinee Itavia Flight 870 (Tyrrhenian Sea near Ustica, Italy)was a deep sea salvage as well.
A Varig 707 crashed in the Pacific Ocean, Japan in 1979 and was never found which would probably be one of very few aircraft never located at all.