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Saturday April 19, 2014 MYT 2:32:00 PM
Saturday April 19, 2014 MYT 2:41:14 PM
SYDNEY: Australian officials supervising the search for missing Malaysia Airlines (MAS) flight MH370 said on Saturday that an underwater search for the black box recorder based on “pings” possibly from the device could be completed in five to seven days.
A U.S. Navy deep-sea autonomous underwater vehicle (AUV) is scouring a remote stretch of the Indian Ocean floor for signs of the plane, which disappeared from radars on March 8 with 239 people on board and is believed to have crashed in the area.
After almost two months without a sign of wreckage, the current underwater search has been narrowed to a circular area with a radius of 10 km (6.2 miles) around the location in which one of four pings believed to have come from the black box recorders was detected on April 8, officials said.
“Provided the weather is favourable for launch and recovery of the AUV and we have a good run with the serviceability of the AUV, we should complete the search of the focused underwater area in five to seven days,” the Joint Agency Coordination Centre told Reuters in an email.
Officials did not indicate whether they were confident that this search area would yield any new information about the flight, nor did they state what steps they would take in the event that the underwater search were to prove fruitless.
The comment came in response to a request for clarification from the agency, after it said in a statement on Thursday that previous media reports suggesting the underwater search could take as long as several months were inaccurate.
Search planes and ships from a half dozen countries have tried in vain to catch any glimpse of the wreckage after nearly two months of daily sorties, making this the most expensive such operation in aviation history.
After almost two weeks without a signal, and long past the black box battery’s 30-day life expectancy, authorities are increasingly reliant on the $4 million U.S. Bluefin-21 drone, which on Saturday was expected to dive to unprecedented depths.
Because visual searches of the ocean surface have yielded no concrete evidence, the drone and its ability to search deep beneath the ocean surface with “side scan” sonar has become the focal point of the search 2,000km west of the Australian city of Perth.
The search has thus far centred on a city-sized area where a series of “pings” led authorities to believe the plane's black box may be located. The current refined search area is based on one such transmission.
After the drone’s searches were frustrated by an automatic safety mechanism which returns it to the surface when it exceeds a depth of 4.5km, authorities have adjusted the mechanism and have sent it as deep as 4,695metres, a record.
But hopes that it might soon guide searchers to wreckage are dwindling with no sign of the plane after six deployments spanning 133 square kilometres. Footage from the drone’s sixth mission was still being analysed, the Joint Agency Coordination Centre said on Saturday.
Malaysian acting Transport Minister Datuk Seri Hishammuddin Hussein said in a Twitter post that the government's Deployment of Assets Committee was considering using more autonomous underwater vehicles, a possible sign of growing confidence in the vessels. He did not elaborate.
On Monday, the search coordinator, retired Air Chief Marshal Angus Houston, said the air and surface search for debris would likely end by midweek as the operation shifted its focus to the ocean floor.
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