From Bharati Naik, CNN
updated 9:15 AM EDT, Sat April 27, 2013

(CNN) -- 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.

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.