(A) potential bottleneck to [growth] is looming in the form of a shortage of aircraft engines and spare parts, particularly on workhorse Airbus and Boeing jets. The shortfall is being exacerbated by the fact that more carriers are flying with the latest-generation turbines that — while as much as 20% more fuel efficient — also have been prone to far more frequent maintenance cycles than their more robust predecessors. (www.seattletimes.com) 更多...
