The National Transportation Safety Board has called for frequent engine inspections for Boeing's 787 Dreamliner aircraft after cracks were found on two of the engines. Engine-maker General Electric, which has been inspecting all of the engines in use, says the cracks were a result of a new protective coating on the engine shafts that had trapped moisture and weakened the steel. GE will cease use of the new coating and return to an older protective coating, according to Rick Kennedy, a GE spokesman. The New York Times (tiered subscription model) (9/14), Bloomberg (9/15)
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