NEW YORK (AP) — Boeing’s much-delayed 787 Dreamliner has hit another production problem.
Hairline cracks have been discovered in the wings of some 787s that are being built. The company said none of the 122 jets already flown by airlines around the world are affected.
“We are confident that the condition does not exist in the in-service fleet,” Boeing spokesman Doug Alder said. “We understand the issue, what must be done to correct it and are completing inspections of potentially affected airplanes.”
Boeing said that roughly 40 airplanes might be affected and that it will take one to two weeks to inspect each plane and fix any cracks found on shear ties on a wing rib. A shear tie is an attachment fitting. It is part of the rib — and connects the rib to the wing skin.
The wings are produced by Japan’s Mitsubishi Heavy Industries and then flown to the U.S. to be assembled with other parts of the plane.
Alder said Boeing doesn’t expect this problem to affect its total deliveries of 110 new Dreamliners in 2014.