Saturday, November 1, 2014   

(Flight MH370) Plane transmitted ‘pings’ for four hours, US joins Indian Ocean search
(03-14 09:34)

A Malaysia Airlines Boeing 777 sent signals to a satellite for four hours after the aircraft went missing, an indication that it was still flying for hundreds of miles or more, a US official briefed on the search said Thursday.
Six days after the plane with 239 people aboard disappeared, Malaysian authorities expanded their search westward towards the Indian Ocean, saying the aircraft may have flown for several hours after its last contact with the ground shortly after takeoff from Kuala Lumpur for Beijing, AP reports.
A string of previous clues about Flight MH370 have led nowhere.
The US official, said the plane was not transmitting data to the satellite, but was instead sending out a signal to establish contact.
Boeing offers a satellite service that can receive a stream of data during flight on how the aircraft is functioning and relay the information to the plane's home base. The idea is to provide information before the plane lands on whether maintenance work or repairs are needed.
Malaysia Airlines did not subscribe to that service, but the plane still had the capability to connect with the satellite and was automatically sending pings, the official said.
“It's like when your cellphone is off but it still sends out a little ‘I'm here' message to the cellphone network,'' the official said. “That's how sometimes they can triangulate your position even though you're not calling because the phone every so often sends out a little bleep. That's sort of what this thing was doing.''
The plane had enough fuel to fly about four more hours, the US official said.
Boeing did not comment.
Messages involving a different, more rudimentary data service also were received from the airliner for a short time after the plane's transponder _ a device used to identify the plane to radar _ went silent, the official said.
If the plane had disintegrated during flight or had suffered some other catastrophic failure, all signals _ the pings to the satellite, the data messages and the transponder _ would be expected to stop at the same time.
One part of the hunt is in the South China Sea, where the aircraft was seen on civilian radar flying northeast before vanishing. A similar-sized search is also being conducted in the Strait of Malacca because of military radar sightings that might indicate the plane turned in that direction after its last contact, passing over the Malay Peninsula.
The total search area being covered is about 92,600 square kilometers _ about the size of Portugal.
India has said its navy, air force and coast guard will search for the plane in the south Andaman Sea.
“Because of new information, we may be part of an effort to open a new search area in the Indian Ocean,'' White House spokesman Jay Carney said earlier Thursday, declining to offer additional details about that information or the new area.
The US Navy 7th Fleet said it is moving one of its ships, the USS Kidd, into the Strait of Malacca, west of Malaysia.
   
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