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路透华盛顿9月24日 - 美国联邦航空管理局局长周二告诉美国众议院小组委员会，波音公司 的安全文化改进工作可能需要三到五年才能完成。
联邦航空管理局局长迈克-惠特克（Mike Whitaker）说："这不是一个为期六个月的计划，而是一个为期三到五年的计划，"他补充说，他已经就安全文化改革的必要性与波音公司首席执行官凯利-奥特伯格（Kelly Ortberg）和公司董事会进行了沟通。他说，波音公司在短期内已经取得了重大改进。"关于文化，这是一个长期项目"。
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