https://aviationnews.eu/news/2015/03/nigerias-arik-air-places-worlds-first-bombardier-crj1000-nextgen-aircraft-with-three-abreast-business-class-seating-into-service/
Nigeria’s Arik Air Places World’s First Bombardier CRJ1000 NextGen Aircraft with Three-abreast Business-class Seating into Service