Japan's two main airlines, JAL and ANA, have been
ordered to thoroughly inspect all of their Boeing 787 Dreamliners after
last weekend's discovery of a problem with one of JAL's planes,
Transport Minister Akihiro Ota said.
He also directed the two companies to review their methods for
supervising maintenance work performed by manufacturer Boeing, who had
modified the battery of that JAL aircraft after the series of technical
problems that forced authorities to ground all 787s for about four
months.
The incident involving the JAL Boeing 787 Sunday came just a day after
both firms had resumed commercial flights with Dreamliners for the first
time since Jan 16.
On Sunday, the pressure sensor on the plane's battery cover registered a
difference in air pressure between the exterior and the interior of the
battery container during a pre-flight safety check.
According to JAP, the pressure differential occurred due to faulty maintenance by Boeing.
Problems with the 787 fleet have been mounting since January, when a
series of failures in the planes' lithium-ion batteries forced
authorities to suspend operations with the almost 50 jets used by
airlines around the world.
After approving the improvements in the new batteries redesigned by
Boeing, US and Japanese authorities in April gave the green light to
resuming 787 flights.
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