Breaking News
Comments
Newest First | Oldest First | Threaded View
DrQuine
User Rank
CEO
re: Boeing underestimated possibility of battery fire
DrQuine   3/19/2013 1:06:11 AM
NO RATINGS
As Bert22306 said, "The Chevy Volt and laptop PC batteries, all examples of Li-Ion batteries, have all suffered from these same symptoms" so obviously the probability of an event is not one in a billion flight hours. Furthermore, aircraft cycle through atmospheric pressure changes, operate in high vibration situations, and have much less tolerance for failure. Why is it that electric car and computer users have a more intuitive grasp of battery failure rates than the battery engineers?

dates
User Rank
Rookie
re: Boeing underestimated possibility of battery fire
dates   3/15/2013 11:57:46 AM
NO RATINGS
There is a March7 Interim Rport on the NTSB website. In the news, Boeing plans a raft of modifications to the battery pack and wants to get flying asap. As I understand, the root cause has not been found. This is surely unacceptable. At least one example from aviation history (The Comet) where the root cause of a failure was not understood, "fixes" were implemented, but the plane failed again.

Olaf.Barheine
User Rank
Rookie
re: Boeing underestimated possibility of battery fire
Olaf.Barheine   3/15/2013 7:15:23 AM
NO RATINGS
I could imagine that the main problem is not to find a technical solution, but to get a new regulatory approval. I do not believe that Boeing can simply replace the battery type and the authorities say: okay, you can fly again.

Bert22306
User Rank
CEO
re: Boeing underestimated possibility of battery fire
Bert22306   3/14/2013 8:10:32 PM
NO RATINGS
Still absolutely no new information. For that matter, no information, since we have never been given anything other than the unlikeliest of fault conditions, all of which have been disproven (such as excessive load and incorrectly designed charging cycles). We should know tonight at 9 PM EDT what the design fix is. Perhaps that will shed some light. The Chevy Volt and laptop PC batteries, all examples of Li-Ion batteries, have all suffered from these same symptoms. One would think that an aswer would have been more forthcoming, no?



Flash Poll
Top Comments of the Week
Like Us on Facebook
EE Times on Twitter
EE Times Twitter Feed

Datasheets.com Parts Search

185 million searchable parts
(please enter a part number or hit search to begin)
EE Life
Frankenstein's Fix, Teardowns, Sideshows, Design Contests, Reader Content & More
Engineering Investigations

Air Conditioner Falls From Window, Still Works
Engineering Investigations
Post a comment
It's autumn in New England. The leaves are turning to red, orange, and gold, my roses are in their second bloom, and it's time to remove the air conditioner from the window. On September ...

Max Maxfield

Feast Your Orbs on My Jiggly Exercise Machine
Max Maxfield
54 comments
Last weekend, I was chatting with my mother on the phone. She's all excited that I'm coming over to visit for a week in November. "I'll be seeing you in only seven weeks," she trilled ...

David Blaza

RadioShack: The End Is Nigh!
David Blaza
124 comments
I'm feeling a little nostalgic today as I read about what looks like the imminent demise of RadioShack, at least as we currently know it. An old ubiquitous cartoon image popped into my ...

Larry Desjardin

Engineers Should Study Finance: 5 Reasons Why
Larry Desjardin
47 comments
I'm a big proponent of engineers learning financial basics. Why? Because engineers are making decisions all the time, in multiple ways. Having a good financial understanding guides these ...