On Apr 13, 9:30*am, (Bradley K. Sherman) wrote:
Discussing an NTSB meeting to be held on 23,24 April:
*|
*| National Transportation Safety Board (NTSB) chief Deborah
*| Hersman said Friday an upcoming hearing should reveal "a
*| lot more about the certification and design process" that
*| Boeing and aviation regulators used for the 787 Dreamliner
*| battery system before it went into service.
*|
*| After that, she said in an interview, "If we believe there
*| are changes that need to be made, we will pursue that."
*|
*| Hersman said the NTSB will review Boeing's design and risk
*| analysis and the Federal Aviation Administration's
*| certification process in its final investigation report,
*| which should be issued by the end of the year.
*| ...
*| She declined to comment specifically on Boeing's proposed
*| battery fix. The NTSB is charged with assessing safety and
*| making recommendations, but the FAA sets the rules of
*| aviation, and it's the agency that grounded the Boeing jets.
*|
*| "Boeing has to identify and properly mitigate the risks to
*| the FAA's satisfaction," Hersman said. Lifting the
*| grounding "really is up to the FAA."
*| ...
*| Hersman acknowledged that it's a challenge to identify the
*| root cause of the internal short known to have started the
*| Boston battery fire because the battery was severely
*| damaged.
*|
*| In searching for that cause, her experts are conducting
*| weeks-long tests on other batteries produced by Boeing's
*| supplier, GS Yuasa of Japan.
*|
*| "We have to let the investigation play out," Hersman said.
*|
http://seattletimes.com/html/businesstechnology/2020769388_ntsbhersma...

* * --bks

Thank you for keeping us updated. I am sure the Japanese will want to
know what's going on too as they are big customers for the plane as
well as parts suppliers. Also, the idea of future battery use in
aircraft applications is a big one for industry folks to watch.

I wonder how hard it is just to put a new type of battery in there?

-- David

Maybe the secret really is NiMH.

(Thank you, thank you, try the chicken Parma, please tip your
waiter....)