The News Courier in Athens, Alabama

State and Nation

January 30, 2013

US investigators ask Boeing for battery history

— TOKYO (AP) — U.S. investigators said Wednesday they asked Boeing Co. to provide a full operating history of lithium-ion batteries used in its grounded 787 Dreamliners after Japan's All Nippon Airways revealed it had repeatedly replaced the batteries even before overheating problems surfaced.

National Transportation Safety Board spokesman Peter Knudson said the agency made the request after recently becoming aware of battery problems at ANA that occurred before two recent incidents involving the planes batteries. Boeing has already collected some of the information, he said.

All 50 of the Boeing 787s in use around the world remain grounded after an ANA flight on Jan. 16 made an emergency landing in Japan when its main battery overheated. About a week before that, a battery caught fire in a 787 parked at Boston's Logan International Airport.

ANA said it had replaced batteries on its 787 aircraft some 10 times because they didn't charge properly or connections with electrical systems failed, and informed Boeing about the swaps. Japan Airlines also said it had replaced 787 batteries. It described the number involved as a few but couldn't immediately give further details.

The 787 is the first airliner to make wide use of lithium-ion batteries. They are prone to overheating and require additional safeguards to prevent fires. However, ANA spokeswoman Megumi Tezuka said the airline was not required to report the battery replacements to Japan's Transport Ministry because they did not interfere with flights and did not raise safety concerns.

Boeing said Wednesday that replacing the batteries on a plane is not uncommon. The company said that it has not "seen 787 battery replacements occurring as a result of safety concerns."

The ANA spokesman also said that replacing batteries on aircraft was not considered out of the ordinary.

Laura Brown, a spokeswoman for the U.S. Federal Aviation Administration, said in Washington that the agency was checking whether the previous battery incidents had been reported by Boeing.

Text Only
State and Nation
Photos


Poll

Which foreign crisis is the biggest threat to the security of the United States?

Russia-Ukraine
Israel-Palestine
Iraq
None of the above
     View Results
Facebook
AP Video
Looming Demand Could Undercut Flight Safety Raw: 2 Shells Hit Fuel Tank at Gaza Power Plant Raw: Massive Explosions From Airstrikes in Gaza Giant Ketchup Bottle Water Tower Up for Sale Easier Nuclear Construction Promises Fall Short Kerry: Humanitarian Cease-fire Efforts Continue Raw: Corruption Trial Begins for Former Va Gov. The Carbon Trap: US Exports Global Warming UN Security Council Calls for Gaza Cease-fire Traditional African Dishes Teach Healthy Eating 13 Struck by Lightning on Calif. Beach Baseball Hall of Famers Inducted Israel, Hamas Trade Fire Despite Truce in Gaza Italy's Nibali Set to Win First Tour De France Raw: Shipwrecked Concordia Completes Last Voyage Raw: Sea Turtle Hatchlings Emerge From Nest Raw: Massive Dust Storm Covers Phoenix 12-hour Cease-fire in Gaza Fighting Begins Raw: Bolivian Dancers Attempt to Break Record Raw: Israel, Palestine Supporters Rally in US
Twitter Updates
Hyperlocal Search
Premier Guide
Find a business

Walking Fingers
Maps, Menus, Store hours, Coupons, and more...
Premier Guide
Stocks
Parade
Magazine

Click HERE to read all your Parade favorites including Hollywood Wire, Celebrity interviews and photo galleries, Food recipes and cooking tips, Games and lots more.
Business Marquee