FILE PHTO: AirAsia planes are seen on the tarmac at Kuala Lumpur International Airport 2 (KLIA2) in Sepang, Malaysia December 13, 2017. Picture taken through glass. REUTERS/Lai Seng Sin/File Photo

PARIS (Reuters) - AirAsia Group has decided to convert 253 orders for Airbus’ A320neo planes to the larger A321neo model, Airbus said on Tuesday.