The backlog currently falls off sharply in 2023. At six years out, there is plenty of time to fill the production gap—in theory. The dearth of wide-body orders through the end of the decade could make this challenging.
The A330 is a near-term challenge.
According to an analysis of its backlog, only three-quarters of the delivery slots are filled in 2019 and fewer in 2020. The backlog begins to fall sharply in 2021.
A350, like Boeing 787, is not achieving 1:1 book:bill.
Like the 787, the A350 production is currently living off the backlog.
A330neo sales are focus at Airbus this year. Delivery schedule falls off in 2019.