You have reached your limit of free articles this month.

Enjoy unlimited access to SpringfieldNewsSun.com

Starting at just 99¢ for 8 weeks.

GREAT REASONS TO SUBSCRIBE TODAY!

  • IN-DEPTH REPORTING
  • INTERACTIVE STORYTELLING
  • NEW TOPICS & COVERAGE
  • ePAPER
X

You have read of premium articles.

Get unlimited access to all of our breaking news, in-depth coverage and interactive features. Starting at just 99c for 8 weeks.

X

Welcome to SpringfieldNewsSun.com

Your source for Clark and Champaign counties’ hometown news. All readers have free access to a limited number of stories every month.

If you are a News-Sun subscriber, please take a moment to login for unlimited access.

NTSB: 787 battery approval should be reconsidered


By Joan Lowy

Associated Press

WASHINGTON (AP) — The government should reassess its safety approval of the Boeing 787 lithium ion batteries, the nation’s top accident investigator said Thursday.

The National Transportation Safety Board’s investigation of last month’s battery fire in a Japan Airlines 787 “Dreamliner” while it was parked in Boston shows the fire started with multiple short-circuits in one of the battery’s eight cells, said the board’s chairman, Deborah Hersman. That created an uncontrolled chemical reaction known as “thermal runaway,” which is characterized by progressively hotter temperatures. That spread the short-circuiting to the rest of the cells and caused the fire, she said.

The findings are at odds with what Boeing told the Federal Aviation Administration when that agency was working to certify the company’s newest and most technologically advanced plane for flight, Hersman said. Boeing said its testing showed that any short-circuiting was contained within a single cell, preventing thermal runaway and fire, she told reporters at a news conference.

Boeing’s testing also showed the batteries were likely to cause smoke in only 1 in 10 million flight hours, she said. But the Boston fire was followed nine days later by a smoking battery in an All Nippon Airways plane that made an emergency landing in Japan. The 787 has recorded less than 100,000 flight hours, Hersman noted.

Investigators are still trying to determine why the first battery cell short-circuited, but the board’s findings appear to raise doubts about the thoroughness of FAA’s safety certification of the 787’s batteries and whether Boeing will be able to make a quick fix that returns the planes to the skies.

The same day as the ANA emergency landing, FAA officials ordered the only U.S. carrier with 787s — United Airlines, which has six of the planes — to ground them. Aviation authorities in other countries swiftly followed suit. In all, 50 planes operated by seven airlines in six countries are grounded.

The groundings have become a nightmare for the company, which has about 800 Dreamliner orders from airlines around the world.

GE Aviation, based in Evendale, supplies engines used in some 787s.


Reader Comments ...


Next Up in Business

Former bank employee opens new Springfield food truck
Former bank employee opens new Springfield food truck

A new food truck focusing on personal pizzas was inspired by a Rotary Club Food truck competition. Brad Focht, of Springfield, recently opened Phoenix Pizza, which will serve customers most days of the week at a handful of locations in the city. A former network engineer at Huntington Bank, Focht said he had wanted to open his own food truck for a...
Springfield native brings fashion show to Upper Valley Mall
Springfield native brings fashion show to Upper Valley Mall

The Upper Valley Mall will be the center of area fashion on Sunday, June 25. The second “Fashion. Forward. Fusion.” Fashion Show will gather designers from Springfield, Dayton, Cincinnati and Columbus to showcase their latest offerings, 5 to 7:30 p.m. at the former MC Sports location. READ MORE: Goat yoga craze stretches into Clark County...
Snapchat introduces location-sharing with Snap Map
Snapchat introduces location-sharing with Snap Map

Snapchat is introducing a new way to locate your friends with the Snap Map.  The social media platform announced the news this week, revealing that the location-sharing feature will allow friends to find each other or anyone in the world using its map.  “We've built a whole new way to explore the world! See what's happening, find your...
Dayton Air Show announces paved parking for 2017 show
Dayton Air Show announces paved parking for 2017 show

Organizers for the Vectren Dayton Air Show presented by Kroger provided tips for parking. All parking this year is on paved lots after heavy rains Friday made the grassy fields too muddy. Spectators entering or leaving the show via Interstate 75 Northwoods Boulevard (Exit 64) or National Road will be directed to one of four air show parking lots by...
JOB ALERT: Kroger to hire for 800 open positions at all locations
JOB ALERT: Kroger to hire for 800 open positions at all locations

Cincinnati-headquartered Kroger is hiring for 800 open positions at all Kroger locations. The grocery retailer is looking for new employees during a hiring event on Saturday from 11 a.m. to 4 p.m. at all Kroger stores. Positions are open in the following departments: deli, bakery, meat and seafood, Starbucks, grocery and ClickList. Interested applicants...
More Stories