Operated by Cello (small titles near the forward door and logo on the tail) from Oct 2017 to Oct 2018. Previous identities included G-CFAC with CityFlyer Express and HB-IYU with Swiss International. Last noted Oct 2019 as F-WWFX with Airbus EXO Alpha SAS awaiting convertion into a Hybrid-Electric Propulsion System prototype, known as the E-Fan-X.