Skip to main content

Another battery incident troubles Boeing's 787 Dreamliner

By Mike M. Ahlers, Aaron Cooper and Thom Patterson, CNN
updated 5:52 PM EST, Tue January 14, 2014
A battery compartment vent on the belly of a United Airlines Dreamliner 787 in May 2013.
A battery compartment vent on the belly of a United Airlines Dreamliner 787 in May 2013.
STORY HIGHLIGHTS
  • NEW: Japan Airlines hands over 787 battery unit to Boeing for investigation
  • The NTSB says it's ready to assist Japanese officials in the probe
  • A smoking battery was reported aboard a Japan Airlines 787 Dreamliner Tuesday
  • Fears of overheating batteries prompted 787s to be grounded worldwide a year ago

(CNN) -- Nearly nine months after it returned to the sky and its battery system was declared safe, new reports surfaced Tuesday of smoke aboard a Boeing 787 Dreamliner at Tokyo's Narita International Airport.

The incident "appears to have involved the venting of a single battery cell," aboard a Japan Airlines 787, Boeing told CNN in a statement. A year ago, overheated batteries aboard two Dreamliners prompted aviation officials to ground all 50 of the planes worldwide.

Tuesday's incident "occurred during scheduled maintenance activities with no passengers on board," the Boeing statement said. "The improvements made to the 787 battery system last year appear to have worked as designed." Boeing said it was working with Japan Airlines to return the plane to service.

Japan Airlines and the government's Japanese Aviation Bureau told CNN Tuesday night that the battery unit was removed from the aircraft to be handed over to manufacturers Boeing/Yuasa for further investigation. The airline told Flightglobal that the plane sustained no damage. JAL is monitoring their other 787s as a precautionary measure, Flightglobal reported.

Boeing's stake in the Dreamliner is huge. Hundreds of millions of dollars are riding on the success of the 787, which represents a new generation of lighter, more efficient money making planes.

Boeing issues warning

When it began service in 2011, the Dreamliner boasted a new battery system that used new, lighter lithium-ion batteries. After the planes were grounded, Boeing and the Federal Aviation Administration collaborated on a new battery compartment. The compartment was designed to insulate the batteries in a ventilated armor-plated box to protect the rest of the plane in case of a fire caused by overheating batteries. The NTSB announced this month it plans to issue a final investigation report later this fall.

Interactive diagram of the 787

The National Transportation Safety Board said it was aware of Tuesday's battery incident in Japan.

"By international treaty, aviation accidents and incidents are investigated by the investigative authority in the country in which the accident or incident occurred.

"If the Japan Transport Safety Board opens an investigation into the battery smoke event, the NTSB stands ready to assist," the U.S. agency said in a statement.

In July 2013, investigators blamed a fire aboard an empty Ethiopian Airlines 787 parked at London's Heathrow airport on a malfunctioning emergency beacon.

Tuesday's incident comes nearly two months after Boeing warned airlines about another 787 concern: possible icing problems in its GE engines.

The aircraft manufacturer alerted 787 operators after instances of "ice crystal icing that resulted in temporary diminished engine performance," Boeing said in a statement.

Although it said only a small number of the engines have experienced the ice problems, Boeing advised pilots to keep planes at least 50 nautical miles from storms that may contain ice crystals until General Electric can make improvements to the "GEnx" engines.

The Dreamliner's development was marked by production delays and other problems. Then, a year ago this month, batteries were blamed for two overheating instances on a Japan Airlines 787 in Boston and on an All Nippon Airways 787 in Japan. No one was hurt in either case, but concerns about the incidents spurred the FAA to ground all U.S. Dreamliners. Officials around the world followed suit.

Experts say every airliner experiences "teething pains" during its first few years of service, as minor problems are shaken out. But the FAA's decision to ground the Dreamliner put it under intense scrutiny.

United Airlines is the lone U.S. operator of Boeing 787s.

In an apparent show of confidence in July, United announced it was ordering 20 new 787-10 models, which are a longer version of the plane.

ADVERTISEMENT
Part of complete coverage on
updated 2:51 PM EDT, Tue April 15, 2014
Sky gazers caught a glimpse of the "blood moon" crossing the Earth's shadow Tuesday in all its splendor.
updated 12:24 PM EDT, Tue April 15, 2014
Oscar Pistorius didn't consciously pull the trigger the night he shot and killed his girlfriend, the sprinter testified at his murder trial.
updated 5:16 PM EDT, Mon April 14, 2014
Officials are launching their next option: an underwater vehicle to scan the ocean floor.
updated 8:54 AM EDT, Tue April 15, 2014
A mysterious new artwork has appeared in Cheltenham, where Britain's version of the NSA is located.
updated 11:23 AM EDT, Tue April 15, 2014
Like many parents across Liverpool, the McManamans waited. 25 years ago, it was all they could do.
updated 9:24 AM EDT, Tue April 15, 2014
The Maltese Falcon makes a swift turn while at sea.
How do you design a superyacht fit for the billionaire who has everything money can buy?
updated 11:48 AM EDT, Tue April 15, 2014
Pop art condoms in Kenya
Packaging can change how people see things. And when it comes to sex, it could maybe help save lives too.
updated 11:42 AM EDT, Tue April 15, 2014
mediterranean monk seal
Africa is home to much unique wildlife, but many of its iconic species are threatened.
updated 11:09 AM EDT, Tue April 15, 2014
A staff stands next to the propellers of Sun-powered plane Solar Impulse 2 HB-SIB seen in silhouette during its first exit for test on April 14, 2014 in Payerne, a year ahead of their planned round-the-world flight. Solar Impulse 2 is the successor of the original plane of the same name, which last year completed a trip across the United States without using a drop of fuel. AFP PHOTO / FABRICE COFFRINI (Photo credit should read FABRICE COFFRINI/AFP/Getty Images)
This solar-powered aircraft will attempt to circle the globe next year.
updated 7:56 AM EDT, Mon April 14, 2014
Most adults make the mistakes of hitting the snooze button and of checking emails first thing in the morning, writes Mel Robbins.
updated 1:14 PM EDT, Tue April 15, 2014
... not in Italy. In fact, it's thousands of miles away.
updated 8:43 PM EDT, Tue April 15, 2014
Ebola victims usually come from remote areas -- but now the lethal virus is in a city of two million.
updated 9:40 AM EDT, Tue April 15, 2014
Browse through images you don't always see on news reports from CNN teams around the world.
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT