AFTER weeks spent scouring the Indian Ocean without finding any trace of missing Malaysia Airlines flight MH370, Australia has committed itself to a $60 million search covering a massively expanded 60,000 square kilometres of sea floor.
Fifty-two days after the aircraft disappeared with its 239 passengers and crew while on a flight from Kuala Lumpur to Beijing, Tony Abbott announced that the search was entering a new phase focused on a massive expanse of ocean bed, 700km long and 80km wide. That is where satellite data has indicated the aircraft is likely to have run out of fuel and crashed.
The Prime Minister said he was baffled and disappointed that the aircraft had not been found.
“I regret to say that, thus far, none of our efforts in the air, on the surface or under sea have found any wreckage,” he said. “This is probably the most difficult search in human history.”
Former Australian Defence Force chief Angus Houston, who is overseeing the international search effort, told The Australian that by the time the search got under way there was little chance of finding floating debris, especially as a cyclone had been through the area.
“Unfortunately, the visual search in the Indian Ocean did not really get going until day nine,” he said. “If you get there immediately after the aircraft has gone into the water, particularly if it has broken up badly, if you get to the spot where it went in you’ll find something, Air Chief Marshal Houston said.
“But we started very late in the whole scheme of things and most of the wreckage would have sunk. Even things like cushions, once they come waterlogged, they gradually sink.”
Air Chief Marshal Houston said that in the case of an Air France jet that crashed in the Atlantic in 2009, wreckage was found on the fifth day of the search, but by day 16 searchers found no more floating debris and the surface search was called off after 26 days.
He did not think wreckage was likely to wash up on the Australian coastline.
If any wreckage was still afloat it was now certain to be a long way from the crash site, he said.
Air Chief Marshal Houston said he believed from analysis of satellite data that the aircraft was in the area to be searched. “I think we are in the right area,” he said.
Mr Abbott said the new phase of the search would involve a thorough analysis of the aircraft’s probable impact zone. He renewed his pledge to do everything possible to find the plane.
“I want the families to know, I want the world to know, that Australia will not shirk its responsibilities in this area. We will do everything we humanly can, everything we reasonably can, to solve this mystery.’’
The expanded underwater search, which has so far covered 400sq km of sea floor, will continue about 1100km west of the northwestern tip of Australia.
Mr Abbott made his announcement after a team using a remote-controlled mini-submarine had finished combing what it considered the most promising search area.
Air Chief Marshal Houston said the undersea search, to a depth of 4.5km or more, could take eight months if all went well.
He said the ocean floor was covered in silt and heavier parts of the aircraft might have sunk into it.
But he said he had been told that lighter parts of the aircraft would probably have been lying on top of the silt and would have been detected by the mini-submarine’s sonar equipment.
“The expert advice we have is that, irrespective of how thick it is, if there is an aircraft down there, there should be some debris lying on top of the silt,” Air Chief Marshal Houston said.
Mr Abbott said the mini-submarine would continue its search, but that the search team would also be adopting different technology.
The government, in consultation with Malaysia and China, would be willing to engage one or more commercial companies to undertake the work, he said.
Mr Abbott said that would cost an estimated $60m and Australia would welcome contributions from other nations.
In the meantime, ships from Australia, China and Malaysia would continue the search.
source: theaustralian.com.au

















