Boeing said its flight test team flew a 787 Dreamliner Monday to Moses Lake.
This was not the demonstration flight for FAA certification of the battery fix. That test is expected in a few days.
Nor was the flight intended to gather data on new power panel engineering, a test that was postponed from Saturday. Boeing spokesman Marc Birtel said the flight “addresses ongoing system upgrades to the airplane.”
A source familiar with the details said that includes an engine anti-ice system.
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The jet took off at 11:19 a.m. in Everett, hugged the Washington and Oregon coastline flying southwards, then headed back on a northeasterly track and landed at Moses Lake at 1:30 p.m.
After a brief stop there, the jet returned to Everett shortly after 2 p.m.
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