WSJ's Andy Pasztor has been reporting on Flight MH370 since it disappeared. Here he explains how a plane can still transmit pings that allow investigators to track it even after its main tracking systems or transponders are shut off.
How the hunt for Flight MH370 has been dogged by confusion and contradictions.
The search for missing flight MH370 has shifted to the Indian Ocean. Investigators now fear the aircraft is languishing on the sea bed. Source: AFP
- US says Malaysian authorities detected several 'pings'
- US investigators studying radar 'blip' at 2.15am local time
INVESTIGATORS searching for missing flight MH370 reportedly now fear the aircraft is sitting at the bottom of the Indian Ocean.
The claim comes on the heels of revelations by the Wall Street Journal that MH370 sent out intermittent 'pings' transmitting the aircraft's altitude, speed and location for up to five hours after it vanished from civilian radar screens.
The WSJ reported that the final ping was sent from over the ocean, at a 'normal' cruising altitude, five hours after MH370 took off.
"There is probably a significant likelihood" that the aircraft is now on the bottom of the Indian Ocean a US official told CNN this afternoon.
Chinese state news agency Xinhua is reporting tonight that a Chinese seismology and research group detected an "earthquake wave" in waters between Malaysia and Vietnam at about 2.55am local time last Saturday.
"The sea floor event could have been caused by the plane possibly plunging into the sea," the group told Xinhua.
"The strength of the earthquake wave indicates the plunge was catastrophic."
The area is 116 km northeast from where contact with MH370 was lost and is considered a non-seismic region.
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According to sources, U.S. Investigators are looking at data transmitted by the engines on Malaysia Air Flight MH370 that may have come after the planes transponders was shut off. WSJs Jason Bellini speaks with David Sourcie, author of Why Planes Crash.
The CNN source revealed that Malaysian authorities believe several 'pings' from the plane's service data system, known as ACARS, were transmitted to satellites in the four to five hours after the last transponder signal, suggesting the plane flew to the Indian Ocean.
"That information, combined with known radar data and knowledge of fuel range leads officials to believe the plane may have made it to the Indian Ocean, which is in the opposite direction of
MH370's original route, which heighten fears of a terror hijacking, or bizarre action by the pilots," the report said.
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US investigators are almost certain that the dual communication modes on flight MH370 were deliberately shut down by someone on board.
They now believe the data reporting system was turned off at 1.07am while the transponder — which transmits location and altitude — shut down at 1.21am, indicating the plane did not come out of the sky because of a catastrophic failure.
However, no credible group has claimed responsibility for the plane's disappearance and there is no evidence — yet — linking the pilots, crew or passengers to any terrorist or criminal organisation.
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According to Bloomberg, the Americans have been studying a radar blip detected hundreds of kilometres west of the plane's intended route, in the area of the Malacca Strait, at about 2.15am. There are also reports today that a second blip at 2.30am will be reinvestigated after initially being dismissed.
The Boeing 777 had enough fuel to fly the 4345km to Beijing and reserves to fly to a diversion airport.
The latest twists, in what is rapidly becoming known as one of the greatest aviation mystery of all time, have fuelled conspiracy theories.
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The USS Kidd was diverted from the Gulf of Thailand to the Indian Ocean where MH370 is believed to have gone down. Source: Supplied
This morning the USS Kidd was diverted from the Gulf of Thailand to help search the latest suspected crash site, an area west of Malaysia in the northern Straits of Malacca and Andaman Sea.
The Navy destroyer was sent at the request of the Malaysian government, Commander William Marks of the U.S. 7th Fleet.
"We're not out here freelancing, and it's not just something the U.S. Navy thinks and no one else," Commander Marks said.
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