The Norman Transcript

Nation/World

January 19, 2013

Batteries to blame?

WASHINGTON — It’s likely that burning lithium ion batteries on two Boeing 787 Dreamliners were caused by overcharging, aviation safety and battery experts said Friday, pointing to developments in the investigation of the Boeing incidents as well as a battery fire in a business jet more than a year ago.

An investigator in Japan, where a 787 made an emergency landing earlier this week, said the charred insides of the plane’s lithium ion battery show the battery received voltage in excess of its design limits.

The similarity of the burned battery from the All Nippon Airways flight to the burned battery in a Japan Airlines 787 that caught fire Jan. 7 while the jet was parked at Boston’s Logan International Airport suggests a common cause, Japan transport ministry investigator Hideyo Kosugi said.

“If we compare data from the latest case here and that in the U.S., we can pretty much figure out what happened,” Kosugi said.

In the case of the 787 in Boston, the battery in the plane’s auxiliary power unit had recently received a large demand on its power and was in the process of charging when the fire ignited, a source familiar with the investigation of the 787 fire in Boston told The Associated Press. The plane had landed a short time earlier and was empty of passengers, although a cleaning crew was working in the plane.

The source spoke on condition of anonymity because he wasn’t authorized to speak publicly.

The Federal Aviation Administration issued an emergency order Wednesday temporarily grounding the six 787s belonging to United Airlines, the lone U.S. carrier operating Boeing’s newest and most technologically advanced airliner. The Japanese carriers already had grounded their 787s, and airlines and civil aviation authorities in other countries followed suit, shutting down all 50 Dreamliners that Boeing has delivered so far.

Text Only | Photo Reprints
Nation/World
  • Ukraine bares teeth against eastern uprising

    KRAMATORSK, Ukraine — In the first Ukrainian military action against a pro-Russian uprising in the east, government forces repelled an attack Tuesday by about 30 gunmen at an airport, beginning what the president called an “anti-terrorist ...

    April 16, 2014

  • Supremacist faces murder charges

    OVERLAND PARK, Kan. — The white supremacist charged in shootings that left three people dead at two Jewish community sites in suburban Kansas City made his first court appearance Tuesday....

    April 16, 2014

  • Iran cuts nuclear weapons ability

    VIENNA — The United Nations will release a report this week certifying that Iran’s ability to make a nuclear bomb has been greatly reduced because it has diluted half of its material that can be turned most quickly into weapons-grade ...

    April 16, 2014

  • People with old Social Security debts get reprieve

    WASHINGTON — People with old Social Security debts are getting a reprieve — for now....

    April 16, 2014

  • Solemn tributes mark anniversary

    BOSTON — Survivors, first responders and family members of those killed in the Boston Marathon bombing marked the anniversary Tuesday with tributes that combined sorrow over the loss of innocent victims with pride over the city’s ...

    April 16, 2014

  • Questions linger year after bombs

    BOSTON — A surveillance video shows a man prosecutors say is Dzhokhar Tsarnaev placing a bomb near the finish line of the Boston Marathon, just yards from where an 8-year-old boy was killed when it exploded....

    April 15, 2014

  • Feds abruptly end roundup

    Federal land managers abruptly ended the roundup of cattle on public land in southern Nevada owned by a rancher who has refused to recognize their authority, citing a “serious concern” for the safety of employees and the public....

    April 13, 2014

  • Calif. crash probe includes limiting bus fires

    ORLAND, Calif. — A new twist was added to the investigation of a crash involving a tour bus and FedEx tractor-trailer that killed 10 people when a couple said the big rig already was on fire when it careened across a median and sideswiped ...

    April 13, 2014

  • Disappointment, forgiveness mix in La.

    MONROE, La. — To Louisiana voters accustomed to tawdry scandals involving elected officials, disappointment with an eye toward forgiveness is the prevailing sentiment about their new congressman, caught on video embracing an aide married ...

    April 13, 2014

  • Uniformed men occupy Donetsk police HQ

    DONETSK, Ukraine — Men in the uniforms of Ukraine’s now-defunct riot police on Saturday occupied police headquarters in Donetsk, the eastern city that is one of the flashpoints of a wave of pro-Russia protests, hours after armed men seized ...

    April 13, 2014

Video
Facebook