Update, 7:30am PST: Headline: DJ Boeing 787 Probe Results ‘Probably Weeks Away’ -NTSB Chief
We’re trying to track this down, which we received in an email. (We don’t get Dow Jones.) This seems to us like good news–“weeks” instead of “months”–but we caution about reading too much into this until we get the context.
Update, 7:50am PST: AP has this brief report. “Weeks” instead of “months” does seem encouraging but this sounds like a statement of facts rather than any hint at a breakthrough.
Here is a story from the Christian Science Monitor yesterday on the batteries.
787 to cost $6bn in cash: So forecasts UBS Securities in a research note today, and this doesn’t really consider the Boeing 787 grounding yet. Writes UBS:
Retrospective: Here is the press release from 2005 announcing the selection of lithium-ion batteries for the 787.
Boeing presentation about lithium-ion batteries: In November 2012, a Boeing official made this presentation about these batteries in the context of transporting them in cargo holds.
Among the information on the slides:
Energetic failures (fire and/or explosion) of lithium type cells can occur for a number of reasons including:
Independent Study: We’ve now linked Airbus and Boeing presentations about lithium-ion batteries. Here is an independent study–all 126 pages of it–about the topic. This is not about aircraft batteries but the principals are the same.