A staff of JAL walks past one of the company's Boeing Co's 787 Dreamliner plane at Narita international airport in Narita, east of TokyoBy Alwyn Scott SEATTLE (Reuters) – Icing issues which have befell on Boeing Co 787 Dreamliner and 747-8 airplane the use of engines made by Common Electrical Co might lead to forced landings, the U.S. aviation regulator mentioned on Wednesday. The so-known as airworthiness directive from the Federal Aviation Administration had been expected after a sequence of incidents this yr. The icing might reduce the ability of the engines to offer thrust and "might lead to a forced landing," the agency said. The problem turned into recognized closing Friday, when Boeing mentioned it had issued a notice to airlines in regards to the chance of engine icing and the lack of thrust that would end result.