据Allyson Versprille和Siddharth Philip报道，由于一个新的软件问题，美国联邦航空管理局（FAA）将推迟波音公司长期延迟的737 Max 10机型的认证，而就在此时，这家美国飞机制造商正处于获得批准开始向航空公司交付的最后阶段。
By Allyson Versprille and Siddharth Philip Certification of Boeing Co.’s long-delayed 737 Max 10 variant will be held up by the Federal Aviation Administration over a new software issue, just as the US planemaker was in the final stages of winning approval to begin deliveries to airlines.
FAA局长Bryan Bedford周一在华盛顿附近的一个活动上告诉记者，FAA将暂缓波音最畅销单通道机型家族中最大成员的认证，直到确定最近标记的一个软件问题是否构成飞行安全问题。
The FAA is holding off on certification of the largest member of Boeing’s best-selling narrowbody family until it has determined whether or not a recently flagged software concern constitutes a safety of flight issue, Administrator Bryan Bedford told reporters on Monday at an event near Washington.
在局长发表评论后，波音股价跌至盘中低点，截至纽约时间下午2:26，跌幅高达6.8%。波音未立即回应置评请求。原本预计Max 10将在未来几周内获得认证。
Boeing shares fell to an intraday low following the administrator’s comments, dropping as much as 6.8% as of 2:26 p.m. in New York.
这一期待已久的监管里程碑对于帮助波音在经历数年动荡后产生现金流和改善资产负债表至关重要。
Boeing did not immediately respond to a request for comment.
这也是该飞机制造商挑战空中客车公司（Airbus SE）在利润丰厚的单通道喷气式飞机市场主导地位的关键。
The Max 10 was expected to be certified in coming weeks. The long-awaited regulatory milestone is central to helping Boeing generate cash and improve its balance sheet after several tumultuous years. It is also key to the planemaker’s quest to challenge Airbus SE’s grip on the lucrative single-aisle jet market.
737 Max 10的订单超过1500架，使其成为最受欢迎的Max变体机型之一。
Orders for the 737 Max 10 exceed 1,500 aircraft, making it one of the more popular Max variants.
Bedford表示，该机构已使用最新版本的软件认证了较小的737 Max 7，该软件修复了垂直导航系统的一个已知问题，但意外引入了一个新的、但较小的漏洞。“飞行员仍然控制着飞机。他们为此类场景接受过训练，”他告诉记者。
Bedford said the agency certified the smaller 737 Max 7 with the latest version of the software, which fixed a known issue on the vertical navigation system but unexpectedly introduced a new, but smaller, bug.
“我们目前关注的问题是在这些更罕见情况下的工作量因素，以及我们对此的感受。”“我们尚未得出结论，这是否构成飞行安全问题，”他补充道。
“The pilots remain in control of the airplane. They train for these scenarios,” he told reporters. “The issue that we’re looking at right now is the workload component under these more obscure situations and how we feel about that.”
“但我们将推迟Max 10的认证，直到我们确信不存在这个问题。”
“We haven’t concluded whether this is a safety of flight issue or not,” he added. “But we will be delaying the 10 until we’re satisfied we don’t have an issue here.”