Japan Airlines' Boeing 787 Dreamliner suffers battery defect again
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Japan Airlines' Boeing 787 Dreamliner suffers battery defect again

Last Updated: Monday, June 3, 2013, 12:48
 
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Japan Airlines' Boeing 787 Dreamliner suffers battery defect again
Tokyo: A Japanese Airlines' 787 Boeing Dreamliner, which was scheduled for a flight from Tokyo to Beijing was grounded due to battery defects. The aircraft faced a problem with the air pressure sensor for its battery container prompting the airlines to swap it with 767 aircraft, which resulted in an hour's delay in the schedule, reports The Japan Times.

The glitch took place just a day after all the 787 Dreamliners were resumed in services after four months.

JAL officials said that the pressure sensor for the battery container in the electrical equipment bay at the back of the aircraft showed a difference in air between outside and inside the container but there was no abnormality in the battery itself.

According to the report, JAL claimed that the battery problem arose due to Boeing''s poor maintenance as two small holes in the container were mistakenly sealed during repairs to the battery system.

The holes are necessary for air ventilation to prevent overheating. In a previous incident a power switchboard was partially damaged by heat during a 787 training flight conducted by ANA due to faulty maintenance by Boeing.

A mechanic had left a nut loose during a check up of the switchboard before modifying the aircraft's battery, which resulted in excessive heat generation. JAL had asked the airplane maker to avoid any such recurrence. Despite months of all 787s being grounded, the reason for their battery defects still remains unidentified.

ANI



First Published: Monday, June 3, 2013, 12:48


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