Boeing 787 Dreamliner troubles build

[delldude]

http://ad.easa.europ...US-2013-02-51_1


"This emergency AD was prompted by recent incidents involving lithium ion battery failures that resulted in release of flammable electrolytes, heat damage, and smoke on two Model 787-8 airplanes. The cause of these failures is currently under investigation. These conditions, if not corrected, could result in damage to critical systems and structures, and the potential for fire in the electrical compartment."

What is causing the failure.....anyone know?

Wasn't one of those stimulus companies doing lithium ion batts and weren't they flaming up?

Wonder if its them?

 

[Glenn Quagmire]

What is causing the failure.....anyone know?

Wasn't one of those stimulus companies doing lithium ion batts and weren't they flaming up?

Wonder if its them?

Nice try:

"The 787 relies more than any other modern airliner on electrical signals to help power nearly everything the plane does. It's also the first Boeing plane to use rechargeable lithium-ion batteries for its main electrical system. Such batteries are prone to overheating and have additional safeguards installed that are meant to control the problem and prevent fires.

GS Yuasa Corp., [A Japanese Co] the maker of the lithium-ion batteries used in the 787s, said Thursday it was helping with the investigation but that the cause of the problem was unclear. It said the problem could be the battery, the power source or the electronics system."

You know you could do a little research before throwing out another CT...

http://www.manufacturing.net/news/2013/01/japan-probe-suspects-excess-voltage-in-787-battery

http://www.gsyuasa-lp.com/

More here:

"The 787's lithium ion batteries are part of the Dreamliner's electrical power conversion system, which is manufactured by France's Thales SA. United Technologies Corp.'s Aerospace Systems unit supplies the overall system, which uses 1.45 megawatts of electricity, enough to power 400 homes."

http://www.japantimes.co.jp/text/nb20130118n1.html

 

[Captain Reality]

Yuasa batteries are worst in the world. They will short out on you when you least expect it. This experience comes from the motorcycle world. Boeing should used another vendor,like panasonic or exide.

 

[delldude]

Nice try:

"The 787 relies more than any other modern airliner on electrical signals to help power nearly everything the plane does. It's also the first Boeing plane to use rechargeable lithium-ion batteries for its main electrical system. Such batteries are prone to overheating and have additional safeguards installed that are meant to control the problem and prevent fires.

GS Yuasa Corp., [A Japanese Co] the maker of the lithium-ion batteries used in the 787s, said Thursday it was helping with the investigation but that the cause of the problem was unclear. It said the problem could be the battery, the power source or the electronics system."

You know you could do a little research before throwing out another CT...

http://www.manufactu...-in-787-battery

http://www.gsyuasa-lp.com/

More here:

"The 787's lithium ion batteries are part of the Dreamliner's electrical power conversion system, which is manufactured by France's Thales SA. United Technologies Corp.'s Aerospace Systems unit supplies the overall system, which uses 1.45 megawatts of electricity, enough to power 400 homes."

http://www.japantime...20130118n1.html

Would a helped if you were a bit more specific on the first question,Mr Obvious.

 

[Glenn Quagmire]

Would a helped if you were a bit more specific on the first question,Mr Obvious.

You were so hoping they were a Solyndra like company and you had your bubble burst.

Another interesting thing about that company is that they were just awarded a contract to provide batteries for the space station.

 

[delldude]

You were so hoping they were a Solyndra like company and you had your bubble burst.

Another interesting thing about that company is that they were just awarded a contract to provide batteries for the space station.

Not really, was looking for a solid answer from the first post.....

 

[xUT]

Excess voltage in Boeing 787 battery

Photos provided by the Japan Transport Safety Board of the lithium ion battery that was located beneath the 787's cockpit show a blackened mass of wires and other components within a distorted blue casing.

Japan transport ministry investigator Hideyo Kosugi said the state of the battery indicated "voltage exceeding the design limit was applied" to it.

Lithium batteries have had numerous fire problems.
IIRC, airlines quarantined these batteries from transport in the 90's.
Many avionic systems that had these batteries were also subject to combustion.

From the FAA: Laptops
http://www.youtube.com/watch?v=gcd34tt8YPU

For the life of me, I can't see how these batteries should be used for commercial aircraft. Sure, lighter and more amperage, but at a cost of these lil fckers burning. Naturally, there will be much finger pointing as the supplier will blame anything else.

How Boeing and the FAA approved this configuration is beyond comprehension.
But Hey, that's why they are referred to as the 'tombstone agency'.
JMHO,
B) xUT

 

[700UW]

Just read that the FAA and NTSB thinks its a bad batch of batteries and they were overcharged.

Jan. 17 (Bloomberg) -- U.S. officials and Boeing are investigating whether defective batteries from the same batch caused incidents in two 787 Dreamliners that triggered the plane’s worldwide grounding, according to two people familiar with the incidents.

http://www.bing.com/videos/watch/video/dreamliner-bad-battery-batch-said-to-be-probed/2jindq8cc?q=viral&from=en-us_msnhpvidmod&rel=msn&cpkey=8762aa66-5129-46d6-bdb9-70d1c6026e40%257cviral%257cmsn%257c%257c

 

[delldude]

I saw Yuasa got a contract for the space station with ion's......they get out of hand up there.....wow.

 

[xUT]

Just read that the FAA and NTSB thinks its a bad batch of batteries and they were overcharged.

Jan. 17 (Bloomberg) -- U.S. officials and Boeing are investigating whether defective batteries from the same batch caused incidents in two 787 Dreamliners that triggered the plane’s worldwide grounding, according to two people familiar with the incidents.

http://www.bing.com/...ral%7cmsn%7c%7c

Bad batch of batteries is a quick and easy fix.
What do you expect them to say
Don't be surprised when an AD is issued for voltage and current limiting redundancy is added.
Then we'll see if there is a next fire.
B) xUT

 

[Glenn Quagmire]

I did not realize that the 787 had an electric compressor based press system. No bleed air. Wow.

"The Boeing 787 Dreamliner features a unique systems architecture that offers numerous advantages to operators. The new airplane’s use of electrical systems reduces fuel usage and increases operational efficiency"

 

[delldude]

Must have one helluva generator/alternator.
Wonder what the bleed air loss vs HP to turn an generator/alternator relates to fuel efficiency.

 

[xUT]

I did not realize that the 787 had an electric compressor based press system. No bleed air. Wow.

"The Boeing 787 Dreamliner features a unique systems architecture that offers numerous advantages to operators. The new airplane's use of electrical systems reduces fuel usage and increases operational efficiency"

Keep pulling those strings.
B) xUT

 

[700UW]

Here is a good article:

http://www.guardian.co.uk/world/feedarticle/10618899

 

[delldude]

Here is a good article:

http://www.guardian....rticle/10618899

Looks like FAA shares some of the fault also.