MH370 Search Hits Snag With Sonar Detector Loss

January 25, 2016

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Australian authorities searching for Malaysia Airlines flight MH370 have lost a deep-water sonar detector being used to scour a patch of the Indian ocean floor where the plane is believed to have gone down almost two years ago.

MH370 disappeared with 239 people on board during a flight from Kuala Lumpur to Beijing in March 2014, sparking one of the greatest mysteries in aviation history.

On Saturday, a piece of suspected plane wreckage was found off the east coast of southern Thailand but aviation experts and Thai officials said it was unlikely to belong to MH370.

A piece of the plane washed up on the French island of Reunion in the Indian Ocean in July 2015 but no further trace has been found.

The search, using a sonar detector known as a towfish, is focused on a 120,000 sq km (46,330 sq mile) band of sea floor in the remote southern Indian Ocean.

"The towfish collided with a mud volcano which rises 2,200 metres from the seafloor resulting in the vehicle's tow cable breaking," the Joint Agency Coordination Centre (JACC), the agency overseeing the search efforts, said in a statement.

The incident occurred on Sunday, it said.

"The towfish and 4,500 metres of cable became separated from the vessel and are now resting on the sea floor," it said.

The towfish coasts around 100 metres (330 feet) above the sea floor, sending out sound waves diagonally across a broad strip of terrain to produce a flattened image of the seabed.

Earlier this month, JACC reiterated it would complete searching the seafloor by the end of June, ruling out a further expansion without new confirmation on the aircraft's location.

On Monday, it did not say whether the lost towfish would delay that timeframe. A spare towfish on board search vessel the Fugro Discovery was being prepared, JACC said. It was thought it would be possible to recover the lost towfish later.

The Australian-led underwater search is one of the most expensive ever conducted.

(Reuters)