Airbus is still waiting for European certification for its A320 enhancement to increase maximum take-off weight to 78t.
But the airframer is expecting imminent approval for International Aero Engines V2500-powered aircraft, with CFM International CFM56 variants following shortly.
The enhancement, for which US carrier JetBlue will be the first customer, takes advantage of the type's load-alleviation function to improve the MTOW by about 1t. 