Hairline cracks discovered in wings of Boeing 787 Dreamliners

A Boeing 787 Dreamliner aircraft arrives at Auckland International Airport on November 12, 2011. Boeing says the twin-aisle 787's construction, partly from lightweight composite materials, means it consumes 20 percent less fuel than comparable planes, an attractive proposition for airlines facing soaring fuel costs. AFP PHOTO / Bradley AMBROSE (Photo credit should read Bradley AMBROSE/AFP/Getty Images)

Boeing has said that "hairline cracks" have been found in the wings of around 40 787 Dreamliners currently in production.

The company added that the cracks were not discovered on planes that are in use by airlines and pose no safety risk.

It also plans to go ahead with the delivery of 110 787s this year, Reuters reports.

According to the BBC, a statement from Boeing read: "The affected areas are very small and the time required to address the issue will vary between one and two weeks."

"There may be some delays in deliveries, but we expect no impact to 2014 delivery guidance."

Although the 787 Dreamliner is said to be one of the industry's most advanced planes, it has experienced a series of setbacks.

Last year, Japan's two main airlines grounded their Boeing 787 Dreamliners after one was forced to make an emergency landing after experiencing battery problems.

All Nippon Airway (ANA) grounded its fleet of 17 Dreamliners when its flight NH 692 from Yamaguchi Ube was forced to land 18 minutes into its hour-long journey.

In the wake of the incident, Japan Airlines quickly grounded its fleet of seven 787s.

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