Aircraft manufacturer Boeing has advised airlines about the risk of engine icing problems on its new 747-8 and 787 Dreamliner planes with engines made by General Electric (GE) and asked them to avoid flying near high-level thunderstorms. The move comes after several incidents in the last six months involving 747-8s and one 787 when planes powered by GE's GEnx engines suffered temporary loss of thrust while flying at altitude. — Reuters