The Transport Ministry said members of the team working on the investigation would leave Tokyo on Sunday for Everett. It provided no further details.
The U.S. Federal Aviation Administration and Boeing earlier dispatched investigators to join the probe in Japan.
All 50 Boeing 787s in use were grounded after a lithium-ion battery in a 787 flight by All Nippon Airways on Jan. 16 overheated, forcing an emergency landing. Earlier in January, a 787 operated by ANA's rival Japan Airlines suffered a battery fire while parked at a Boston airport.
Investigators on both sides are trying to determine why the batteries have overheated and how to fix the problem.
MORE HBJ HEADLINES
Popular Ford Escape gets a technology-rich update $160B deal to combine Pfizer and Allergan raises outcry Everyone loves same-day delivery, until they have to pay Whole Foods’ value push stumbles with pricey Thanksgiving dinner Stuck waiting: ground delays at US airports on the rise Briefs: Lake Stevens woman appointed to EvCC’s trustees
Our new comment system is not supported in IE 7. Please upgrade your browser here.