FAA grounds 787s
#1
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FAA grounds 787s
http://aviationblog.dallasnews.com/2...ry-fires.html/
Pretty much in response to the battery issue in the NH flight. Hopefully things will be back up soon; I'm sure UA is not particularly happy.
Pretty much in response to the battery issue in the NH flight. Hopefully things will be back up soon; I'm sure UA is not particularly happy.
#4
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Moderator's note: before the thread goes further, please focus the discussion here on the general issues related to this action. If your thoughts involve a specific carrier that is flying the 787, please find the thread(s) in the appropriate airline forum and discuss there. Thanks!
cblaisd
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cblaisd
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#7
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(Reuters) - Europe, Japan and India on Thursday joined the United States in grounding Boeing Co's 787, a day after a second incident involving battery failure caused one of the Dreamliner passenger jets to make an emergency landing.
The U.S. Federal Aviation Administration (FAA) said on Wednesday it would temporarily ground Boeing's newest commercial airliner and insisted airlines would have to demonstrate the lithium ion batteries were safe before they could resume flying. It gave no details on when that might happen.
#9
Join Date: Jan 2013
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Qatar just announced their are grounding their 787 fleet too:
http://www.iol.co.za/business/intern...9#.UPfq1V6EzL8
http://www.iol.co.za/business/intern...9#.UPfq1V6EzL8
#10
Join Date: Apr 2000
Posts: 739
> Can Boeing still test fly them?
Yes.
The problem seems to be battery cooling and monitoring during [re]charging.
Li-Ion batteries have some pretty nasty failure modes (compared to prior
battery chemistries).
I am confident that Boeing will be able to fix this problem, but I don't expect
to see the fleet return to service for ~60 days, maybe longer.
Yes.
The problem seems to be battery cooling and monitoring during [re]charging.
Li-Ion batteries have some pretty nasty failure modes (compared to prior
battery chemistries).
I am confident that Boeing will be able to fix this problem, but I don't expect
to see the fleet return to service for ~60 days, maybe longer.
#12
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If I understand it correctly, Boeing could come up with a system to replace the batteries fairly easily ('fairly' is the operative word here - at this point, every hour is significant), but understandably they'd hope to avoid that.
It does seem odd that there were no reported issues during testing. The risks of lithium-ion are known, it was new technology - one would expect that testing would have paid particular attention to the batteries.
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#14
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NTSB: Excessive Voltage Not the Cause of 787 Battery Fire
Based on this, I would say it is likely that the investigation will take weeks if not months to resolve.
NTSB Rules Out Excessive Voltage as Cause for Dreamliner Battery Fire
Article continues here>>>
NTSB Rules Out Excessive Voltage as Cause for Dreamliner Battery Fire
Investigators from the National Transportation Safety Board announced progress with the investigation of a battery fire on a Boeing 787 Dreamliner in Boston that occurred earlier this month and said on Sunday that they were ruling out excessive voltage as the cause.
The Dreamliner was grounded by aviation authorities and airlines around the world on Wednesday after a second battery-related problem caused a fire on board a Dreamliner aircraft while on …
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The Dreamliner was grounded by aviation authorities and airlines around the world on Wednesday after a second battery-related problem caused a fire on board a Dreamliner aircraft while on …
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#15
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I don't think the 7878i uses lithium ion batteries as the 787. Later deliveries of the 747-8i will include improvements to the fuel storage location and new flight management systems. Both activities seem to be unique to the 7478i and less related to the 787. The 747-8i wings and engine design however, seems to be related to the 787's design.