美国航空安全监管机构批准波音公司开始交付其737 MAX 10机型，这是这款最畅销单通道飞机——历史可追溯至1960年代——的最大、也是最后一个变体机型。
Air-safety regulators cleared Boeing to start delivering its 737 MAX 10, the largest and final variant of its best-selling narrow-body aircraft that dates to the 1960s.
这项备受期待的认证紧随8月份对MAX 7（该单通道喷气式客机最小版本）的批准之后。由于出现一个新的软件故障，MAX 10的认证曾短暂推迟，但联邦航空管理局（FAA）认定该故障不构成安全问题。
The long-awaited certification follows the August approval of the MAX 7, the smallest version of the single-aisle jet. The MAX 10’s certification was briefly delayed by a new software glitch that the Federal Aviation Administration determined wasn’t a safety issue.
交通部长肖恩·达菲在一份声明中说：“经过广泛的安全审查——包括数千小时的试飞——联邦航空管理局团队已准备好批准这款关键飞机投入销售。”联邦航空管理局局长布莱恩·贝德福德表示，该公司将继续被要求遵守最高安全标准。
“After extensive safety reviews—including thousands of hours of test flights—the team at the FAA is ready to approve this critical aircraft for sale,” Transportation Secretary Sean Duffy said in a statement. FAA Administrator Bryan Bedford said the company would continue to be held to the highest safety standards.
波音原计划数年前开始交付这两款机型，但另一款737机型发生两起致命空难，导致延期并新增了安全批准要求，这些客机才能开始载客飞行。
Boeing had planned to start delivering both models years ago, but two deadly crashes involving another 737 model led to delays and new requirements for safety approvals before the jets could begin flying passengers.
MAX 10将配备一项新安全功能，该功能最终将推广至其他737 MAX机型。增强型迎角系统可计算飞机机头角度与机载传感器读数的对比。
The MAX 10 will come with a new safety feature that will eventually be added to other 737 MAX models. The enhanced angle-of-attack system calculates the angle of the plane’s nose versus sensor readings on the aircraft.
波音737系列历史上仅配备两个迎角传感器，因此若其中一个传回错误数据，飞机飞行计算机便无法通过第三个读数交叉核对以确保准确性。公司表示，新系统将降低错误数据的可能性，并有望减轻飞行员工作负荷。
Boeing 737s have historically had only two angle-of-attack sensors, so if one gets bad data the plane’s flight computers haven’t had a way to cross reference a third reading to ensure accuracy. The company said the new system would reduce the possibility of erroneous data and potentially ease pilots’ workload.
2018年和2019年发生的早期MAX空难，源于错误的迎角数据触发有缺陷的飞行控制系统，将飞机推入致命俯冲。两起空难共造成346人遇难。波音随后为该系统增加了防护措施。
The earlier MAX crashes, in 2018 and 2019, followed bad angle-of-attack data triggering a faulty flight-control system that pushed the planes into fatal nosedives. The crashes took 346 lives. Boeing later added safeguards to that system.
MAX 10 获批意味着波音已获准向客户交付单通道 MAX 系列的全部四个机型。近几个月来，这款主力机型的订单量有所上升。预计运营该机型的航空公司包括美国的达美航空、联合航空和美国航空。西南航空已为体型较小的 MAX 7 下单。
The MAX 10’s approval means Boeing is cleared to deliver all four variants of the single-aisle MAX family to customers. Orders of the workhorse aircraft have climbed in recent months. Among its expected operators are U.S. carriers such as Delta Air Lines, United Airlines and American Airlines. Southwest Airlines has placed orders for the smaller MAX 7.
据波音介绍，MAX 10 长 143 英尺 8 英寸（约 43.8 米），最多可容纳 230 个座位。这比 MAX 7 长 27 英尺（约 8.2 米），多出 58 个座位。
Stretching 143 feet, 8 inches, the MAX 10 can hold a maximum of 230 seats, according to Boeing. That is 27 feet longer and 58 more seats than the MAX 7.