Dream Or Reality? Boeing Says 787 Will Fly In Weeks

Grounded since January, Boeing says the troubled 787 Dreamliner may be ready to fly again in mere weeks.Photo above: AP/Elaine Thompson

Grounded since January, Boeing says the troubled 787 Dreamliner may be ready to fly again in mere weeks.
Photo above: AP/Elaine Thompson

Depending on one’s point of view, it’s a ‘good news – bad news’ announcement from Boeing stating that rather than months, it will be weeks until the 787 Dreamliner will take-off again.

After a series of almost comical if it wasn’t so dangerous incidents earlier this year, all Boeing 787  aircraft were grounded, chiefly owing to a lithium-ion battery – only 42.3 centimeter (19-inch)-long, 25.9 centimeter (10.2-inch) in size – that feed’s the jet’s auxiliary power unit caught fire on a JAL (Japan Airlines) Boeing 787 Dreamliner jet at Boston’s Logan International Airport. As well, overheated battery led to an emergency landing of another 787 in Japan.

Afterwards, on January 16, 2013, Japanese airlines JAL and ANA (All Nippon Airways) who own many of the planes decided to ground their fleet, Boeing gave in and ordered a total grounding about a week later.

However, even though Boeing says it has NOT pinpointed the cause for the battery overheating, Boeing Co. chief project engineer Michael Sinnett says that a Boeing has a solution based on a new design for the lithium-ion battery system that has layers of safeguards to prevent overheating and measures to contain malfunctions.

About one-third of the plane is made by Japanese manufacturers, including GS Yuasa who supplied the troublesome lithium-ion battery, as well as the newly-designed one.

While one-third of the safety tests have already been completed, a Japanese official said it was possible flights could resume next month.

The 787 Dreamliner is the first airliner to make wide use of lithium-ion batteries. They are light and quick to charge but can suffer from “thermal runaway,” a chemical reaction in which a rise in temperature causes a spiral of temperature increases.Executives said it would take too long to figure out what had specifically caused the problems in Boston and southwestern Japan but the new design would ensure 787s are safe.

Boeing came up with 80 possible causes for the battery failures, categorized them into four groups, and came up with design changes such as better insulation between each battery cell so any malfunctions won’t spread. That was to allow the 787 to be back in the air more promptly, they said.

(Ed Note: Not a bad way to go about things, I suppose. basically, Boeing helped design a better battery. But, let’s not forget – should any other company want to use the batter, they may want to follow Boeing’s lead and ensure the current battery is a best-fit scenario for their needs.)

There were also changes to wiring for the battery, aimed at preventing overheating, and a new enclosure for the battery Boeing says would eliminate the risk of fire.

The enclosure has a direct vent to carry battery vapors outside the airplane, and small holes at the bottom of the battery case will allow moisture to drain from the battery, according to Boeing. The battery charger is also being adapted to beef up safety, it said.

While executives acknowledged that final approval would have to come from the FAA (Federal Aviation Administration), and didn’t rule out further delays to ensure safety, Boeing says it is in contact with the FAA and didn’t foresee any long delays.

“It’s a safe airplane. We have no concerns at all about that,” Sinnett says.

Boeing executive vice-president Ray Conner offered his apologies to Japan for the problems.

“We do apologize for this situation,” Conner says, adding that he was in Japan to meet with aviation authorities and airlines, and the company (Boeing) had picked Japan as the place to outline the battery fix.

Photo above: AP/Elaine Thompson

About mreman47

Andrew was born in London, UK, raised in Toronto, Canada, and cavorted in Ohtawara, Japan for three years. He is married, has a son and a cat. He has over 35,000 comic books and a plethora of pioneer aviation-related tobacco and sports cards and likes to build LEGO dioramas. He has written and been an editor for various industrial magazines, has scripted comic books, ghost-written blogs for business sectors galore, and hates writing in the 3rd person. He also hates having to write this crap that no one will ever read. He works on his Pioneers Of Aviation - a cool blog on early fliers - even though it takes him so much time to do. He also wants to do more writing - for money, though. Help him out so he can stop talking in the 3rd person.
This entry was posted in News and tagged , , , , , . Bookmark the permalink.

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out /  Change )

Google photo

You are commenting using your Google account. Log Out /  Change )

Twitter picture

You are commenting using your Twitter account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )

Connecting to %s