Japan's investigation of a battery that was smoking on a Boeing 787 flight there last month has not yet determined if the incident started in the same way as a fire on another 787 in Boston, a Japanese official said Friday.
Akinobu Yokoyama, a spokesman for Japan's Transport Safety Board, said it was still not clear whether a short-circuit or other malfunction occurred within one or more of the eight cells in the new lithium-ion battery.
His comments in an interview came a day after Deborah Hersman, the chairwoman of the National Transportation Safety Board, said the problems on the Boston jet seemed to have originated in the battery. She said one of the cells had a short-circuit that created a "thermal runaway" as it cascaded through the rest of the cells, heating the battery to 500 degrees.
Japan's farm ministry said Thursday that the highly pathogenic avian influenza found at a poultry farm in the southwestern Japan prefecture of Kumamoto has been confirmed to be the H5N8 subtype, the same virus strain as the bird flu found in South Korea. (Jiji Press )
Train operators in Tokyo and surrounding areas will be shutting down coin-operated luggage lockers at main stations before and during US President Barack Obama's visit next week, as a security measure. (NHK )
Just over one ton of water contaminated with radioactive particulates leaked from one of the containment vessels at the stricken Fukushima Daiichi nuclear plant on Wednesday, Tokyo Electric Power Co (TEPCO) said. (Japan Today )
Japan is expected to secure the minimum required power supply capacity when electricity demand peaks in August, even if all the country's nuclear reactors remain offline, estimates by major regional utilities showed Thursday. (Kyodo )
Tochigi prefectural police said Thursday that they are questioning a man in his 30s over the murder of a 7-year-old girl in December 2005. Japanese media quoted police as saying that the man, who was arrested for dealing in fake brand-name goods, has hinted at his involvement in the murder. (Japan Today )
People enjoy viewing the 15-meter snow walls of the Yuki no Otani (Great Snow Valley), along the Tateyama Kurobe Alpine Route that passes through the Northern Japan Alps to link Toyama and Nagano prefectures. (The Japan News )
Tokyo prosecutors plan to look into whether a man, who has been arrested for allegedly vandalizing copies of Anne Frank's diary, is mentally competent to be held criminally responsible for his actions, informed sources said Wednesday. (Jiji Press )