On Thursday, an All Nippon Airways 787 from Tokyo to Frankfurt, Germany was grounded after a cockpit message indicated a problem with the power supply to its air conditioning system.
More than 100 passengers were on board the flight. They managed to take a different flight eight hours after the scheduled departure time.
This is the 4th incident in the past two weeks involving the revamped Dreamliner. Just last week, a United Airlines flight from Denver to Tokyo was diverted to Sea-Tac International Airport because of a problem with the oil filter.
Back in January, the Federal Aviation Administration and other officials grounded the Dreamliner worldwide due to troubles with its battery system.