Reshuffling of Singapore Airlines' Airbus A380 delivery schedule means that the airframer will not meet its revised target of 14 deliveries of the type this year.
Airbus brought its 2009 production target down to 18 in January, and cut it again to 14 in May as customers sought to reduce capacity.
But a spokesman for Airbus says it has agreed with a customer to defer delivery of one of these aircraft "by a few weeks" which will push it into 2010.
He declines to identify the customer. But a source familiar with the decision has identified the carrier involved as Singapore Airlines.
Singapore Airlines recently agreed to postpone deliveries of eight A380s by at least six months, although it said it was still intending to take two in its current fiscal year.
Airbus is maintaining its plan to deliver over 20 A380s in 2010, and says the second-wave production is "taking a grip" although the precise production figures for next year are to be reviewed in more detail.