Not sure if this is a first for the A350 or not so if some one wants back me up on it being the first thanks!
Kinda a cool story, a Delta Airbus A350-900 made an emergency landing in Fairbanks, Alaska after having an engine issued with the number 2 engine. the A350, flying as Delta Flight 159. The aircraft originated out of Detroit heading to Seoul Korea. The A350 landed in Fairbanks at 1546 local with 189 passengers, the passengers remained overnight in Fairbanks as technicians worked on the engine.
Fairbanks Airport put out a press released.