Memories of program mistakes are weighing on Boeing as it considers the timing of whether to re-engine or replace the 737 Next Generation family. Two weeks ago, when Boeing CEO James McNerney told analysts that the company's "current bias is not to re-engine [but] to move to an all-new airplane," his comments were taken by some to mean that a new airplane is on the way. In fact, he was reiterating Boeing's view that it cannot find a compelling business case to re-engine. But it has not made a final decision. The complexities of replacing the Boeing 737NG family, which is selling so well that Boeing is boosting production rates, is not easy. The single- aisle family accounts for 65-70% of Boeing's airplane sales year after year.
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机译：波音公司正在考虑是否重新设计或更换737 Next Generation系列飞机的时机，因此，程序失误的记忆正在沉重。两周前，当波音公司首席执行官詹姆斯·麦克纳尼（James McNerney）对分析师表示，该公司的“当前偏向不是重新设计引擎，而是转向使用一架全新飞机”时，有人发表了他的评论，这意味着一架新飞机正在使用中。方式。实际上，他重申波音公司的观点，即波音公司无法找到令人信服的商业案例进行重新设计。但它尚未做出最终决定。替换波音737NG系列产品的复杂性并不容易，波音737NG系列产品的销售如此之好以至于波音正在提高生产率。单通道家庭年复一年地占波音飞机销售量的65-70％。
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