Get your summer on
Article updated: 1/18/2013 11:57 AM

Japan probe suspects excess voltage in 787 battery

Buy this photo Buy this photo
Gallery Image

The distorted main lithium-ion battery of the All Nippon Airways' Boeing 787 which made an emergency landing on Wednesday.

Associated Press

About this Article

The burned insides of a battery in the Boeing 787 at the center of a worldwide grounding of the aircraft indicate it operated at a voltage above its design limit, a Japanese investigator said Friday, as U.S. officials joined Japan's probe into the incident. The All Nippon Airways plane made an emergency landing Wednesday morning in western Japan after its pilots smelled something burning and received a cockpit warning of battery problems. Nearly all 50 of the 787s in use around the world have since been grounded.