NTSB Says Regulators Should Reconsider Approval Of Dreamliner Battery | WAMU 88.5 - American University Radio

NPR : News

Filed Under:

    NTSB Says Regulators Should Reconsider Approval Of Dreamliner Battery

    The head of National Transportation Safety Board said today that the FAA should reconsider their approval of the Dreamliner's lithium-ion battery.

    Essentially, the NTSB Chairman Deborah Hersman said during a news conference, what Boeing told the FAA about the risks involving the battery have proved different in practice.

    The New York Times explains that Boeing said the batteries on the new 787 planes "were likely to emit smoke less than once in every 10 million flight hours."

    Once the planes started flying, however, "smoke came out of the batteries twice last month in fewer than 100,000 hours of commercial flights."

    Not only that, reports the AP, but Boeing also said that any short circuit within the battery would be contained to a single cell. The NTSB found that in the case of the Japan Airlines 787 that caught fire in Boston, the "the fire started with multiple short-circuits in one of the battery's eight cells." That spread to the other seven cells and created an "uncontrolled chemical reaction known as 'thermal runaway.'"

    "This investigation has demonstrated that a short-circuit in a single cell can propagate to adjacent cells and result in smoke and fire," Hersman said. "The assumptions used to certify the battery must be reconsidered."

    Because of the battery issue, the 50 Dreamliners in service around world have been grounded since mid-January, causing a major headache for Boeing.

    Reuters adds:

    "Hersman said a review is needed of the 'special conditions' under which aviation regulators approved Boeing's use of this particular battery technology on the 787, a decision that has lately come under close scrutiny.

    "The NTSB plans to issue an interim factual report in 30 days, though the decision on returning the plane to regular flight rests with the Federal Aviation Administration."

    Copyright 2013 NPR. To see more, visit http://www.npr.org/.

    NPR

    When Islamists Impose Their Will In 'Timbuktu,' One Family Resists

    The movie, one of five Academy Award nominees for best foreign language film this year, is about radical Islamists occupying the city in Mali. Remarkably, it's often on the verge of being a comedy.
    NPR

    Multivitamins: The Case For Taking One A Day

    Multivitamins have gotten a bad rap. But studies suggest these dietary supplements may help plug the nutrition gaps resulting from our less-than-ideal eating habits.
    NPR

    Mitt Romney Won't Run For President In 2016

    "I've decided it is best to give other leaders in the party the opportunity to become our next nominee," Romney said in a statement to supporters, according to multiple news reports.
    NPR

    Media Outlets Partner With Snapchat To Appeal To Younger Users

    As people disappear from the audiences of conventional news organizations, 11 media outlets have partnered with Snapchat in the U.S. to offer its younger users easily digested fare within the app.

    Leave a Comment

    Help keep the conversation civil. Please refer to our Terms of Use and Code of Conduct before posting your comments.