<p>Boeing's 787 Dreamliner jet suffered a cracked cockpit window and an oil leak on separate flights in Japan on Friday (January 11), the latest in a series of incidents testing confidence in the sophisticated new aircraft.<br /><br />All Nippon Airways (ANA) said a domestic flight from Tokyo landed safely at Matsuyama airport in western Japan after a crack developed on the cockpit windscreen, and the plane's return to Tokyo was cancelled.<br /><br />The same airline later said oil was found leaking from an engine of a 787 Dreamliner after the plane landed at an airport in southern Japan.<br /><br />ANA said crew noticed a spider web-like crack in a window in front of the pilot's seat about 70 minutes into the flight, which was close to its destination.<br /><br />A spokesman for the airline said cracks appear a few times every year in other planes and are not a sign of fundamental problems with the 787 Dreamliner.<br /><br />Earlier this week, a battery fire caused damage to an empty 787 jet operated by Japan Airlines while it was on the ground at Boston airport.<br /><br />The next day, another plane spilled 40 gallons of fuel onto the taxiway at the same airport after a problem that caused a valve to open, forcing the plane to delay its departure.<br /><br />On Wednesday (January 9), ANA cancelled a domestic Dreamliner flight due to a brake-control computer glitch.</p>
