Japanese Airlines Ground All Boeing 787 Dreamliners
January 16, 2013 9:19 AM
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ANA and Japan Airlines ground all 24 787 aircraft
Boeing's 787 Dreamliner has
suffered multiple problems across the aircraft fleet
this month. Boeing’s 787 Dreamliner got another ding on its record yesterday when an All Nippon Airways (ANA) aircraft had to make an emergency landing.
What is known about the emergency landing is that the cockpit display showed that the aircraft was having battery problems. Presumably, after the battery fire in Boston, pilots were taking no chances and landed the aircraft as soon as possible.
The batteries in these aircraft are especially important because the 787 Dreamliner fleet uses electrical systems rather than hydraulic systems found on most passenger aircraft.
All Nippon Airways 787 after emergency landing.
[Image Source: Kyodo News]
After these issues, all 24 of the Boeing 787 Dreamliner aircraft operated in Japan by ANA and Japan Airlines have been grounded for safety checks. ANA owns 17 of the 24 aircraft with Japan Airlines owning the remainder. These 24 aircraft are nearly half of the 50 787 Dreamliners that have been delivered and flown commercially around the world.
In response to the issues with the aircraft, the FAA has launched a comprehensive safety review of 787 Dreamliner’s critical systems. This review will include an evaluation of how Boeing designs, manufacturers, and assembles the aircraft. Boeing has pledged to fully participate in review stating that it believes the process would bolster public confidence in the aircraft.
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RE: Lithium Ion Batteries?
1/16/2013 1:35:10 PM
Maybe they are being overcharged?
Maybe Boeing is using poor lithium ion chemsitry for the application?
Maybe there is an inadequate cooling system in general? Keep in mind that an aircraft has -lots- of electronics that are stored in a very tight space. The exhaust air can be very-very warm.
"Young lady, in this house we obey the laws of thermodynamics!" -- Homer Simpson
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