Airbus has cut the delivery target for its slow-selling A380 superjumbo to 12 per year from 2018, down from 27 in 2015 and about half of what is projected for this year.
It announced the cutback at the Farnborough Airshow, taking the shine off a $US20 billion haul of orders for smaller planes, after the decision was reported in French newspaper La Tribune.
The move raises the possibility that Airbus could revert to losses on the double-decker jet after breaking even for the first time last year, but averts the need to start ordering parts for unsold planes - something it has pledged not to do.
Parts for the planes must be ordered up to two years ahead.
Airbus said it would still break even with 20 deliveries next year, but gave no specific commitment beyond that.
"The company will continue to improve the efficiency of its industrial system to achieve breakeven at 20 aircraft in 2017 and targets additional cost reduction initiatives to lower breakeven further," Airbus said in a statement.
Sales of large four-engine airliners like the 544-seat A380 have been hit by improvements in the range and efficiency of smaller two-engined models, which can be easier to fill.
The trend became starker on Monday when one of the mammoth plane's earliest advocates, Richard Branson's Virgin Atlantic, opted for 12 of Airbus' A350-1000 twin-engined jets after progressively shelving its longstanding order for A380s.
Airbus chief Fabrice Bregier insisted the aircraft - once hailed by European leaders as a symbol of industrial cooperation - was "here to stay," while sales chief John Leahy said earlier he was talking to some potential A380 buyers.