Um, Titanic Awaits?!?
If anyone has seen the wreck of the Titanic, you'll notice the major deterioration of both the hull, and the interior portions of the ship.
Of course, Goliath was sunk 27 years after Titanic, but I find it hard to believe that the hull would have remained watertight after 40 years submerged in 1000 feet of ocean.
Not only the pressure, but corrosion would most certainly have flooded the ship long before the technology became available to find, and/or rescue the trapped passengers.
Just my 2 cents.