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U.S. Navy divers in recompression chamber.
On board the U.S. Navy's salvage rescue ship USS Grasp (ARS 51) on July 29, 1996, U.S. Navy divers recompress following their dive on the ill-fated TWA flight 800 crash site. Descending to the crash site 120 feet below, divers recompress in a special chamber on board the Grasp to expel nitrogen in their blood stream. This process allows the divers to maximize their time on the ocean floor, by reducing the time needed to ascend between dives.