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Boeing Achieves 787 Power On

Written by thomas · Filed Under Aeronautics News 

June 20, 2008

thomas

EVERETT, Wash., June 20 /PRNewswire-FirstCall/ — The Boeing Company
(NYSE: BA) has completed the Power On sequence for the first 787
Dreamliner, marking the completion of the next major milestone on the path
to first flight later this year.

Power On is a complex series of tasks and tests that bring electrical
power onto the airplane and begin to exercise the use of the electrical
systems. The 787 is a more-electric airplane with the pneumatic, or bleed
air, system being totally replaced by electronics.

“The team has made great progress in bringing the bold innovation of
the 787 to reality,” said Pat Shanahan, vice president and general manager
of the 787 program. “There is plenty of work to be done between now and
first flight, but with every step forward we grow more and more confident.”

The Power On sequence began in early June with a series of pretest
continuity checks to verify that the wiring installed in the airplane had
been connected properly. Upon completion of those checks, the Boeing team
plugged in an external power cart and slowly began to bring full power into
each segment of the system, beginning with the flight deck displays. From
that point forward, the pilot’s controls were used to direct the addition
of new systems to the power grid.

At each step of the testing, power is allowed to flow into one
additional area and gauges are used to verify that the right level of
electrical power reached the intended area.

“We are very methodical in ensuring the integrity of the airplane’s
systems,” said Shanahan. “In completing the Power On sequence, we have
verified both that the electrical power distribution system is installed as
designed and that it functions as intended.”

An inside look at the Power On testing sequence will be featured on
http://www.boeing.com and newairplane.com beginning Monday at 5 a.m. PDT.

Work will continue to finish building the first 787 and further test
its readiness for operations. First flight is expected in the fourth
quarter.

The Boeing 787 Dreamliner is a more fuel-efficient mid-sized jetliner
capable of serving on long-distance routes. The 787 is expected to enter
revenue service in 2009 after an extensive flight test program.

Fifty-eight customers around the world have ordered nearly 900 787s
since the program was launched in April 2004, making the Dreamliner the
fastest-selling new commercial jetliner in history.

SOURCE The Boeing Compa

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