Japan's transport ministry ordered Japan Airlines and All Nippon Airways to ground more than 30 aircraft equipped with Pratt and Whitney engines after a United Airlines plane with the same power plant caught fire after take-off from Denver over the weekend. The airlines had already taken the planes out of service -- 13 operated by JAL and 19 by ANA -- before the Ministry of Land, Infrastructure, Transport and Tourism issued the order Sunday. A Pratt and Whitney PW4000 engine powering a Boeing 777-200 bound for Honolulu failed on take-off Saturday, scattering debris over a residential area near...
