More than three months after safety issues grounded the Boeing 787 Dreamliner, Ethiopian Airlines became the first to resume service with a commercial flight Saturday, reports CNN.

Nearly 50 Dreamliners around the world had been out of commission after two incidents on jets operated by Japanese airlines called the battery systems into question.

Boeing last week began installing a redesigned battery system in the aircraft.

The Ethiopian Airlines Dreamliner flight carried passengers from Addis Ababa to Nairobi, Kenya, the company said.

The move follows the U.S. Federal Aviation Administration posting a directive outlining the modifications necessary for the Dreamliner to fly again.

Japan this week authorized its passenger airlines to resume Dreamliner flights, but it wasn't clear when they they would reinstate the aircraft.