Ethiopian Airlines resumed Boeing 787 Dreamliner service Saturday with a flight from Addis Ababa to Nairobi, making it the first carrier to relaunch 787 flights since the aircraft was grounded in January. On Monday, April 29, it started daily 787 Addis Ababa-Frankfurt service.

Ethiopian Airlines CEO Tewolde Gebremariam and Boeing VP-marketing Randy Tinseth were onboard the flight. Ethiopian has four 787s and was the first African carrier to order the aircraft. It originally began 787 service in August 2012.

Last week, FAA certified solutions proposed by Boeing to address issues related to the aircraft’s lithium ion batteries.

Other airlines are preparing for their 787 service resumptions. All Nippon Airways (ANA) conducted an “uneventful” proving flight Sunday from Haneda Airport, carrying ANA and Boeing executives as well as flight test engineers, Boeing said in a statement Sunday.

The Japanese government approved Boeing’s fix Friday for the 787’s battery system.