Aerospace giant Boeing has announced that the long-anticipated arrival of its “lean and green” Dreamliner is being pushed back until next year due to further complications.

The latest in a long series of setbacks means that the Dreamliner has suffered almost two-years of delays since the project was launched.

Japan’s All Nippon Airways, the first carrier to place an order, was scheduled to take delivery of the first aircraft by the end of this year, but this will not take place till February next year.

The new Boeing 787 Dreamliner is currently in testing prior to launch.

Last month, Boeing hinted that said the cumulative impact of a series of issues could push the first delivery “a few weeks into 2011.”

Those problems included supplier workmanship issues related to the horizontal stabilizer, as well as instrumentation delays.

In a statement Boeing spokeswoman Yvonne Leach said Boeing is working closely with Rolls-Royce to expedite engine availability.

She added that flight testing continues as planned.

The 787 is made of many composite materials designed to make it lighter and more fuel-efficient than comparable planes already in the sky.