TOKYO--A Japanese transport ministry official said Wednesday
that an inspection of dozens of returned faulty batteries used in
Boeing (BA) 787 Dreamliner jets produced no clues for devising
corrective action to resume flights of the grounded aircraft.
The civil aviation bureau of Japan's transport ministry and the
U.S. Federal Aviation Administration conducted a week-long
inspection into the headquarters and a factory of the battery
maker, GS Yuasa Corp. (6674.TO), that finished Monday.
During the inspection, the regulators also looked into the
reasons for the problems in the batteries that had been returned to
GS Yuasa, some of them by airlines.
Battery smoke forced an All Nippon Airways Co. (9202.TO)
Dreamliner to make an emergency landing earlier this month, leading
to the global grounding of 787s.
"There is no report (of finding anything) related to the (ANA)
incident" in the inspection, said Shigeru Takano, a director of the
bureau's air transport safety unit.
Write to Yoshio Takahashi at yoshio.takahashi@dowjones.com
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