Long-haul is selling. The aircraft to fly it are arriving late.

Sable Atlantic’s summer 2027 plan still shows two additional long-haul banks out of the north-east United States. The aircraft attached to those banks do not. A planning note circulated to the carrier’s board on Friday, and seen by WAAN World, moves four wide-body handovers from the fourth quarter of 2027 into the first half of 2028, citing engine acceptance rather than the airframe line.

The bottleneck has a name inside the industry and almost none outside it. Northline Engines, which builds the high-bypass fan hung under most of the new twin-aisles, told three customers this week that a full shop visit is still running past ninety days. Quick-turn work, the kind that was supposed to put spare engines back under wings inside a month, is being bumped by heavier visits that arrived late from last winter.

We can sell the seats. We cannot yet hang the engines under the aircraft we already contracted.

“We can sell the seats,” said Imani Brooks, network director at Sable Atlantic. “We cannot yet hang the engines under the aircraft we already contracted. The difference this year is that everyone in the room has stopped pretending the chart will heal itself by Easter.”

Lessors have noticed. Two firms that specialize in interim wide-body lift told the desk they are pricing winter 2026 and summer 2027 cover at a premium to last year’s paper, and that the premium is being paid. Airlines would rather fly a heavier, older cabin than hand a bank of slots back to a rival.

Vesper Aerospace, the European airframer supplying part of the delayed metal, said its own final assembly is not the constraint. A spokesperson said wing sets for the affected line remain on the dock. The engines do not. For passengers, the result will look like a familiar trick: the same city pair, a denser cabin, and a departure time that used to belong to a jet that has not been built.