Divers join AirAsia wreck hunt, but no sign of black box

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Search teams including divers took advantage of a let-up in bad weather on Tuesday to try to reach the wreckage of an AirAsia jet, but nine days after the plane crashed officials said there was still no sign of the crucial black box flight recorders.

Indonesian officials believe they may have located the tail and parts of the fuselage of the Airbus (AIR.PA) A320-200 at the bottom of the Java Sea, but strong currents, high winds and big waves have hindered attempts to investigate the debris.

Flight QZ8501 plunged into the water off Borneo island on Dec. 28, about 40 minutes into a two-hour flight from Indonesia’s second-biggest city of Surabaya to Singapore. There were no survivors among the 162 people on board.

Jakarta has launched a crackdown on its fast-growing aviation sector since the crash, reassigning some officials and tightening rules on pre-flight procedures in a country with a patchy reputation for air safety.

“Today’s weather is friendly, the team can work,” the head of Indonesia’s search and rescue agency, Fransiskus Bambang Soelistyo, told a news conference in Jakarta.

Soelistyo said the multinational air and sea operation had two objectives: to recover bodies and wreckage floating in an ever-widening search area in the northern Java Sea, and to find wreckage and the plane’s black box on the ocean floor.

The latter effort is focused on an area about 90 nautical miles off Borneo, where ships using sonar have located five large objects believed to be parts of the plane – the largest about 18 meters long – in shallow water.

Search and rescue agency official Supriyadi, who is coordinating the operation from the southern Borneo town of Pangkalan Bun, said there had been no “pings” detected from the black box’s emergency locator beacon, possibly because it was buried in the seabed or the muddy water was impeding its signal.

“They haven’t found anything, maybe because the water is turbid and there is zero visibility,” he said. “There’s a possibility it is buried in mud.”

The captain of an Indonesian navy patrol vessel said on Monday his ship had found what was believed to be the tail – a key find since that section of the aircraft houses the cockpit voice and flight data recorders – but Soelistyo said that could not be confirmed.

Only 37 bodies of the mostly Indonesian passengers and crew have been recovered. Many more could still be trapped in the fuselage of the aircraft.