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Malaysia Airlines Flight 370's black box had an expired battery before it disappeared

One of the two black boxes had a functioning battery.

By Thor Benson
This satellite image released on March 20, 2014 by the Australian Maritime Safety Authority shows objects that may be possible debris of the missing Malaysia Airlines Flight MH370 in a revised area 185 km to the south east of the original search area. The imagery has been analyzed by specialists in Australian GeoSpacial-Intelligence Organisation and is considered to provide a possible sighting of objects that has resulted in a refinement of the search area. UPI/Australian Maritime Safety Authority
This satellite image released on March 20, 2014 by the Australian Maritime Safety Authority shows objects that may be possible debris of the missing Malaysia Airlines Flight MH370 in a revised area 185 km to the south east of the original search area. The imagery has been analyzed by specialists in Australian GeoSpacial-Intelligence Organisation and is considered to provide a possible sighting of objects that has resulted in a refinement of the search area. UPI/Australian Maritime Safety Authority | License Photo

KUALA LUMPUR, Malaysia, March 8 (UPI) -- A new report concerning the disappearance of Malaysia Airlines Flight 370 has found the data recorder's emergency locator beacon had had an expired battery for over a year.

The battery expired in December of 2012. The flight disappeared on March 8, 2014 while flying from Kuala Lumpur to Beijing.

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The report states it is not known if the battery still could have been operational, despite it being expired. It's possible an old battery could have prevented the black box from "pinging" for 30 days after the crash, an emergency feature designed to make it easier to locate wreckage.

The expired battery was not detected due to a computer error.

However, the report also shows the battery for the cockpit voice recorder's locator beacon was not expired, meaning it may have been emitting a ping for 30 days after the disappearance.

The report also analyzes the mental health of the crew of the plane. It says the "Captain's ability to handle stress at work and home was good. There was no known history of apathy, anxiety, or irritability." It also says he was known to irregularly take painkillers for a past spinal injury.

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