Boeing asked to give full history of batteries used in grounded 787s
Source: Agencies |
January 31, 2013, Thursday
|
Print Edition
Print Edition
US regulators yesterday said they have 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 a January 7 battery fire in a 787 parked at Boston's Logan International Airport. Boeing has already collected some of the information, he said.
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.
All 50 of the Boeing 787s in use around the world remain grounded after an ANA flight on January 16 made an emergency landing in Japan when its main battery overheated.
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.
Replacing batteries on aircraft is not uncommon and is considered routine, she said.
Laura Brown, a spokeswoman for the US Federal Aviation Administration, said in Washington that the agency was checking whether the previous battery incidents had been reported by Boeing.
Boeing in Japan said it couldn't comment while the NSTB investigation is under way. GS Yuasa, the Kyoto, Japan-based manufacturer of the batteries, said it could not comment.
With 17 of the jets, ANA was Boeing's launch customer for the technologically advanced airliner. The airline has had to cancel hundreds of flights, affecting tens of thousands of people, but has sought to minimize disruptions by switching to other aircraft as much as possible. ANA and Japan Airlines are among the biggest customers for the 787.
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 a January 7 battery fire in a 787 parked at Boston's Logan International Airport. Boeing has already collected some of the information, he said.
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.
All 50 of the Boeing 787s in use around the world remain grounded after an ANA flight on January 16 made an emergency landing in Japan when its main battery overheated.
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.
Replacing batteries on aircraft is not uncommon and is considered routine, she said.
Laura Brown, a spokeswoman for the US Federal Aviation Administration, said in Washington that the agency was checking whether the previous battery incidents had been reported by Boeing.
Boeing in Japan said it couldn't comment while the NSTB investigation is under way. GS Yuasa, the Kyoto, Japan-based manufacturer of the batteries, said it could not comment.
With 17 of the jets, ANA was Boeing's launch customer for the technologically advanced airliner. The airline has had to cancel hundreds of flights, affecting tens of thousands of people, but has sought to minimize disruptions by switching to other aircraft as much as possible. ANA and Japan Airlines are among the biggest customers for the 787.
- About Us
- |
- Terms of Use
- |
-
RSS - |
- Privacy Policy
- |
- Contact Us
- |
- Shanghai Call Center: 962288
- |
- Tip-off hotline: 52920043
- 沪ICP证：沪ICP备05050403号-1
- |
- 互联网新闻信息服务许可证：31120180004
- |
- 网络视听许可证：0909346
- |
- 广播电视节目制作许可证：沪字第354号
- |
- 增值电信业务经营许可证：沪B2-20120012
Copyright © 1999- Shanghai Daily. All rights reserved.Preferably viewed with Internet Explorer 8 or newer browsers.
