Another Boeing 787 aircraft grounded in Japan over battery issues

In a continued series of embarrassing glitches, Japan Airlines reportedly grounded a Boeing 787 aircraft after detecting smoke that came from faults within the main battery.

The battery problem was discovered during routine maintenance and no passengers were onboard. It is yet another incidence out of many cases that grounded all 787s for three months last year.

The airline said that during routine maintenance, engineers discovered the battery issue when smoke or gases emerged and warning lights started flashing on the system, the BBC reports.

Boeing said that early indications suggested that a single battery cell had released gases, and that the warning system had operated as planned.

The report said that the prolonged battery issues have been marring Boeing flights from last year when the worldwide fleet of Dreamliners was grounded when two batteries on separate aircrafts overheated in less than two weeks.

Boeing redesigned the battery system, but the precise cause of the problem was never conclusively proved and the aircraft maker put in a raft of safety measures to contain any future issues, the report added.