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Boeing said Monday it is revising the planned development schedule for the Air Force’s 767-based KC-46A refueling tanker, though insisting that the tankers will still be delivered on time.

The next milestone in the tanker program, the first flight of the basic airframe, is supposed to happen in “late November or early December,” according to the most recent information from Boeing.

A second plane fully-equipped as a tanker is then supposed to fly next spring.

Following a Bloomberg report over the weekend, Boeing spokeswoman Caroline Hutcheson said that due to challenges in producing the first aircraft, the company is working to “replan elements of its tanker work flow, and its internal schedules.”

Hutcheson said she does not yet have the new schedule, but the target date for delivering the tankers to the Air Force remains unchanged.

“Boeing remains committed to delivering 18 combat-ready KC-46A Tankers to the U.S. Air Force by the end of August 2017, per the contract schedule,” Hutcheson said.

Hutcheson said the replanning of the schedule to meet the approaching internal milestones is intended “to keep us on track” for the 2017 deliveries.

In July, Boeing reported a $425 million charge attributed to the need to rework wiring and systems installation on the first four tankers that rolled out.

Dominic Gates: 206-464-2963 or