All Nippon Airways grounded five of its 11 Boeing (BA -1.4%) 787 jets after endurance testing...

|About: The Boeing Company (BA)|By:, SA News Editor

All Nippon Airways grounded five of its 11 Boeing (BA -1.4%) 787 jets after endurance testing revealed a risk of corrosion on the planes' Rolls Royce engines, although three of the aircraft have been repaired and are flying again. The problem involves a gearbox provided by United Technologies (UTX -1.5%) unit Hamilton Sundstrand.