A United Airlines Boeing 787 Dreamliner is parked at Narita Airport outside Tokyo on Thursday, Jan. 17, 2013. (AP Photo/Kyodo News)
A United Airlines Boeing 787 Dreamliner is parked at Narita Airport outside Tokyo on Thursday, Jan. 17, 2013. (AP Photo/Kyodo News)
An Ethiopian Airlines Boeing 787 Dreamliner prepares to depart from Addis Ababa Airport in Ethiopia on Saturday, April 27, 2013. (AP Photo/Elias Asmare)
An Ethiopian Airlines Boeing 787 Dreamliner prepares to depart from Addis Ababa Airport in Ethiopia on Saturday, April 27, 2013. (AP Photo/Elias Asmare)
A Boeing 787 "Dreamliner" aircraft belonging to Japan's All Nippon Airways, takes off from Haneda Airport in Tokyo at the start of a test flight on Sunday, April 28, 2013. (AP Photo/Kyodo News)
A Boeing 787 "Dreamliner" aircraft belonging to Japan's All Nippon Airways, takes off from Haneda Airport in Tokyo at the start of a test flight on Sunday, April 28, 2013. (AP Photo/Kyodo News)
** FILE ** In this Feb. 3, 2011, file photo, Boeings' new 787 Dreamliner takes off from Houston's Bush Intercontinental Airport in Houston. While Boeing’s 787 Dreamliners are grounded, the batteries causing airliner’s troubles can still fly. (AP Photo/Pat Sullivan, File)
A Japan Airlines Boeing 787 Dreamliner jet aircraft is surrounded by emergency vehicles while parked at a Terminal E gate at Logan International Airport in Boston on Monday, Jan. 7, 2013, following a fire that started in one of the plane's lithium ion batteries. (AP Photo/Stephan Savoia)
A Japan Airlines Boeing 787 Dreamliner jet aircraft is surrounded by emergency vehicles while parked at a Terminal E gate at Logan International Airport in Boston on Monday, Jan. 7, 2013, following a fire that started in one of the plane's lithium ion batteries. (AP Photo/Stephan Savoia)
