Boeing powered on its 787 Dreamliner for the first time, the next step toward the first flight of the aircraft later this year. The airframer said it completed the “Power On” sequence, a series of tasks and tests the started in early June to bring electrical power onto the airplane and begin to exercise the use of the electrical systems. "We are very methodical in ensuring the integrity of the airplane’s systems," said Pat Shanahan, vice president and general manager of the 787 program. "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."In April, Boeing delayed the aircraft’s first flight and first customer delivery, saying it experienced slower than expected completion of work that traveled from supplier facilities into Boeing’s final assembly line. First flight of the aircraft is expected in the fourth quarter and first customer deliveries are slated for 2009. "There is plenty of work to be done between now and first flight, but with every step forward we grow more and more confident," Shanahan said. For related news