NEW YORK (AP) — The safety and reliability of the Boeing’s new 787 came into question again Wednesday when battery problems led to an emergency landing of an All Nippon Airways flight. ANA and Japan Airlines, the biggest customers for the plane, temporarily grounded all 24 787s they own. Boeing shares fell more than 3 percent.

Just a week, ago the battery on a Japan Airlines 787 ignited shortly after the plane landed at Boston’s Logan International Airport, prompting the Federal Aviation Administration to initiate a review of everything about the new airplane, including its entire design and manufacturing process.