Boeing 787 Dreamliner investigators say battery may have operated at too high a voltage | Adelaide Now -g-icon-error cloudy-day nav_small_right nav_small_right nav_small_right nav_small_right nav_small_right nav_small_right nav_small_right nav_small_right
A Japanese investigator said overnight that the internal combustion of the battery at the Boeing 787's global ground Center showed that its operating voltage exceeded the design limit, s. officials joined Japan's investigation into the incident.
On Wednesday morning, the air-all-Japan aircraft landed in western Japan in an emergency when its pilot smelled burning and received a cockpit warning of battery problems.
Since then, almost all 50 of the 787 countries used in the world have been grounded.
Photos provided by the lithium ion battery Japan Transportation Safety Board, located below the 78 7 cockpit, show that a large number of blackened wires and other components are inside the twisted blue shell.
Koyo Kosugi, an investigator with Japan's Ministry of Transport, said the state of the battery indicated that it was being applied a voltage that exceeded the design limit.
He said that in the 787 of the Japanese airlines that caught fire on January, the battery burned from the inside of the ANA flight was similar to the battery.
The plane was parked at Boston Logan International Airport for a common reason.
"If we compare the data on the latest cases here and in the United States, we can almost figure out what happened," Mr Kosugi said . ".
787 is more dependent than any other modern airliner on electrical signals to power almost everything the plane does.
This is also the first Boeing aircraft to use rechargeable lithium.
The ion battery of its main electrical system.
This battery is prone to overheating and additional protection measures are installed to control problems and prevent fires.
GS Yuasa producer of lithium
Ion batteries used in 787 helped to investigate, but the cause of the problem is not clear, said Thursday.
The problem, it says, could be a battery, a power supply, or an electronic system.
S. security officials and Boeing inspectors took part in the investigation by the Japan Transportation Safety Commission overnight.
American investigators
One for the Federal Aviation Administration and one for the National Transportation Safety Board, two for Boeing.
ANA jets were inspected on the tarmac at Komatsu airport in western Japan.
A preliminary inspection of 787 by Japanese officials found that a flammable battery fluid called electrolyte leaked from the aircraft's main lithium
Ion batteries under the cockpit.
It also found burn marks around the battery.
The Japanese aviation authorities have instructed ANA, which owns 17 aircraft, and air Japan, which owns seven aircraft, not to fly until the plane's safety issues are resolved.
The Boeing 787, known as the Dreamliner, is Boeing's latest jet, which relies heavily on its success.
The plane was launched after a delay of more than three years, but has been plagued by a series of problems.
The FAA asked American Airlines to stop flying for 787 seconds before the battery was certified safe.
United Airlines, which has six jets, is the only American airline to fly this model.
Aviation authorities in other countries usually follow the leadership of the country where the manufacturer is located.