After a welcoming ceremony at the airport Monday, the plane was grounded by a faulty valve in the cooling system for the electronics bay.
A second Dreamliner arrived at Sea-Tac from Tokyo on Tuesday morning, 77 minutes ahead of schedule.
That flight also took off for its return to Japan on Tuesday afternoon.
MORE HBJ HEADLINES
Mazda of Everett opens expanded, new site US economy barely grew in first quarter 1:19 p.m. Microsoft makes its case for Windows 10 1:17 p.m. Noting slower economy, Fed appears no closer to a rate hike 1:18 p.m. American Airlines shows off latest plane to employees, media 1:16 p.m. Dozens of American Airlines flights delayed by map glitch 1:32 p.m.
Our new comment system is not supported in IE 7. Please upgrade your browser here.