Colorado Springs, Colorado May 26, 2010 – The fourth Boeing 787 Dreamliner, ZA004, flew to Colorado Springs for a short series of high-elevation tests. Earlier this month another 787 conducted touch-and-go maneuvers in Colorado Springs. The high-elevation tests follow tests on the same airplane over the weekend in Mesa, Ariz., done at a low-elevation airport in hot weather. The 787 flight test fleet, currently comprised of four airplanes, has logged more than 840 hours of flying in the last six months.