Airbus is aiming to begin final assembly of A320neos at its Chinese plant in Tianjin around mid-year, with production at its US Mobile line at the end of 2017.
The two assembly lines complement its Toulouse and Hamburg single-aisle facilities, at which A320neo manufacture is already underway.
Airbus gave the schedule estimates for Tianjin and Mobile – without identifying specific months – having delivered a total of 70 A320neos by the end of January this year.
Of these 40 had Pratt & Whitney PW1100G engines, while CFM International Leap-1As were fitted to the other 30.
Single-aisle production in January remained relatively low, with 21 aircraft delivered, of which only two were re-engined models.
Although this output was greater than the 17 delivered in January 2016, the figure is still down on the levels of 26-30 achieved in the previous five years.
Airbus has yet to deliver the first A321neo, stating only that it will be handed over “well before summer”. The PW1100G-powered version has already been certified, with Airbus hoping to secure approval for the Leap-equipped aircraft this quarter.