Japan grounds Boeing 777s after United jet engine failure

Japan Airlines and ANA Holdings have been ordered to ground their Boeing 777 planes after an engine failure on a United jet Saturday that rained debris over a Denver suburb. Japan’s transport ministry ordered the grounding Sunday while safety checks are conducted. ANA operates 19 planes and JAL 13 with the Pratt & Whitney PW4000 engine that failed on the United Airlines flight. <br/>