REGISTER | LOGIN
Breaking News
Comments
Newest First | Oldest First | Threaded View
DrQuine
User Rank
Author
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?

52634
User Rank
Author
re: Boeing underestimated possibility of battery fire
52634   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
Author
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
Author
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?



Like Us on Facebook
EE Life
Frankenstein's Fix, Teardowns, Sideshows, Design Contests, Reader Content & More
Martin Rowe

Test Tool Finds Ethernet Wiring Errors
Martin Rowe
Post a comment
When my house was renovated several years ago, I had the electrician install network outlets in numerous places, then run the LAN cables to a wiring closet. But he didn't document the ends ...

Martin Rowe

Local Electronics Store Supplies Engineers and Hobbyists
Martin Rowe
5 comments
Rochester, N.Y. — Tucked away in this western New York city known for its optics is Goldcrest Electronics, a local store that's supplied businesses and individuals with electronic ...

Martin Rowe

How to Transform a Technology University (Book Review)
Martin Rowe
1 Comment
The Presiding Genius of the Place by Alison Chisolm. WPI, Worcester, Mass., 234 pp., 2016. Engineers love to discuss, and often criticize, engineering education. They often claim ...

Max Maxfield

Aloha from EEWeb
Max Maxfield
Post a comment
Just a few minutes ago as I pen these words, I posted this blog about this month's Cartoon Punchline Competition over on EEWeb.com.