But Jim Hall, chairman of the National Transportation Safety Board, said Monday divers face an especially daunting task this time. Flight 990 crashed in water twice as deep as Flight 800. Divers will have to don helmets and be connected by hoses to an air supply on the Grapple. The depth will limit how long they can be below. The National Weather Service said the region around Nantucket will be lashed by 40 mph winds, heavy rains and 15-foot waves by Tuesday night.
Authorities say there is no evidence suggesting foul play.
Across Narragansett Bay from Newport, crash debris and human remains were being unloaded at Quonset Point, a former Navy base where investigators will try to reconstruct the shattered plane. The Coast Guard, fearing bad weather by Tuesday night, has stepped up its search for debris and human remains. Only one body has been recovered, but authorities said searchers are finding evidence of human remains. The retrieved debris lacks burn marks that might indicate a fire or explosion, search officials said. Correspondents Daryn Kagan and Gary Tuchman contributed to this report.