Spring Airlines, a low-cost carrier based in Shanghai, China, has signed an agreement with Airbus for Sharklet retrofit of its A320 aircraft in operation to become the first Chinese airline to perform retrofit of the latest fuel saving device. Thanks to this aerodynamic upgrade, Spring Airlines’ retrofitted aircraft will benefit from a reduction in fuel costs by up to 4%, an annual 900t reduction in CO2 emissions, an increased mission range by up to 100 nautical miles and improved performances at high elevation airports. Spring Airlines took delivery of its first A320 with Sharklets in September 2013. Since then the operator has been evaluating the effect of Sharklets on the operational performance of its fleet of six Sharklet-equipped A320s. Based on the proven operational advantage observed from more than 8500 accumulated flight hours, Spring Airlines has decided to select Sharklets for all its new deliveries and now has decided to expand the option to its in-service fleet.