Boeing now projects that the in-service reliability of its 787 won't be up to that of its 777 model until mid-2014. "We are making good progress but do we have additional work ahead of us? Yes," said Boeing Commercial Sales Vice President Marty Bentrott, predicting another six months of work with a focus on software improvements. Meanwhile, the Federal Aviation Administration has required American carriers to inspect Boeing 787 and 747-8 planes with General Electric engines. The engines have experienced icing issues that can cause a loss of thrust, potentially leading to forced landings.