MH370 officials: Crash site could be north of search area

December 20, 2016 by Kristen Gelineau

A team of international investigators hunting for missing Malaysia Airlines Flight 370 said Tuesday it has concluded the plane is unlikely to be found in a stretch of the Indian Ocean search crews have been combing for two years, and may instead have crashed in an area farther to the north.

The conclusion raises the possibility that the search for the Boeing 777 could continue well beyond next month, when crews are expected to finish their deep sea sonar hunt of the current search zone west of Australia. But Australia's transport minister suggested that was unlikely.

The latest analysis of the plane's whereabouts comes in a report from the Australian Transport Safety Bureau, which is leading the search for the aircraft. The report is the result of a November meeting of international and Australian experts who re-examined all the data used to narrow down the search area for the plane, which vanished during a flight from Kuala Lumpur to Beijing on March 8, 2014, with 239 people on board.

In the years since the plane disappeared, experts have analyzed a series of exchanges between the aircraft and a satellite to estimate a probable crash site along what's known as the seventh arc—a vast arc of ocean that runs through the southern hemisphere. A deep sea search of a 120,000-square kilometer (46,000-square mile) stretch of water along the seventh arc has so far come up empty.

In November, the experts went back over the satellite data, along with the results of a new ocean drift analysis of the more than 20 items of debris likely to have come from the plane that have washed ashore on beaches throughout the Indian Ocean. The analysis, which looked at where the items washed ashore and when, suggested the debris originated in an area farther north along the arc from the current search zone.

Given the number of aircraft parts found so far, the team concluded that there must have been a debris field floating on the surface of the water when the plane crashed. So they eliminated an area that had already been the subject of a surface search by air crews in the early stages of the hunt.

That left a 25,000-square kilometer (9,700-square mile) area immediately to the north of the current search zone as the most likely place where the plane hit the ocean, the ATSB report said.

The investigators concluded that there is "a high degree of confidence" that the plane is not in the current search area. And they agreed that the new area needs to be searched.

"The experts concluded that, if this area were to be searched, prospective areas for locating the aircraft wreckage, based on all the analysis to date, would be exhausted," the report said.

However, a new search would require fresh funding commitments from the countries involved in the hunt. Malaysia, Australia and China agreed in July that the $160 million search will be suspended once the current stretch of ocean is exhausted unless new evidence emerges that would pinpoint the plane's exact location.

Australian Transport Minister Darren Chester suggested an extension of the hunt based on the latest analysis was unlikely, noting that the report "does not give a specific location of the missing aircraft."

"As agreed at the Tripartite Ministers meeting in Malaysia in July we will be suspending the search unless credible evidence is available that identifies the specific location of the aircraft," Chester said in a statement. "The search for MH370 has been the largest in aviation history and has tested the limits of technology, and the capacity of our experts and people at sea."

Australian government oceanographer David Griffin, who worked on the drift analysis, said he is confident the plane is in the newly identified search area, though he conceded it doesn't completely rule out the possibility that the plane rests in the current search area and was somehow missed by search crews.

"It could have been where we were searching, absolutely, but the new information does clarify that immediately north is more likely," Griffin said.

As part of their analysis, Griffin and his team built replicas of the first piece of debris that was found—a wing fragment known as a flaperon that was discovered on Reunion Island off the African coast in July last year. The team then set the replicas adrift, measuring how fast they traveled and noting how much the wind influences their rate of speed. They then ran computer simulations of how several of the debris pieces could have drifted, which helped give them a picture of where they originated.

The newly identified zone does include an area that was searched very early on in the hunt, but crews didn't comb a wide enough area to rule it out, Griffin said. "They didn't go quite far enough away from the arc to cover all possibilities," he said.

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not rated yet Dec 27, 2016
of course witness accounts in the maldives were ignored
1 / 5 (1) Dec 28, 2016
I wonder if the sonar record will be made available to oceanographers now. That's not a well-explored area of the world.

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