【#美国联邦航空管理局对2000架波音飞机发出紧急适航指令#：”The Federal Aviation Administration (FAA) issued an emergency airworthiness directive on Friday to 2,000 U.S.-registered Boeing 737 NG and Classic aircrafts that have been in storage, warning the possibility of air check valves erosion that may result in dual-engine failure. Boeing's stored 737 NG and Classic aircrafts which haven't been used for seven consecutive days or longer come under the directive. FAA said inspectors found compromised air check valves when bringing aircraft out of storage and ordered all corroded valves must be replaced before resuming operation. Boeing has responded the same day, explaining that "with airplanes being stored or used infrequently due to lower demand during the COVID-19 pandemic, the valve can be more susceptible to corrosion."

【#美国联邦航空管理局对2000架波音飞机发出紧急适航指令#：阀门或被腐蚀】美国联邦航空管理局（FAA）周五发布了一项紧急适航指令，表示已入库的2000架波音737 NG和Classic机型的空气止回阀或已被腐蚀，可能导致双引擎故障。FAA表示，已有检查员发现飞机出仓后空气止回阀受损，如果这些飞机已有连续七天或更长的时间未运行，则空气止回阀有可能已被腐蚀。FAA表示，如果发现腐蚀，则必须在飞机恢复服务之前更换阀门。波音公司周五回应，已建议操作人员检查飞机，并补充说：“受COVID-19疫情影响，飞机使用率降低甚至被长期存放，此种情况下阀门更容易受到腐蚀。”The Federal Aviation Administration (FAA) issued an emergency airworthiness directive on Friday to 2,000 U.S.-registered Boeing 737 NG and Classic aircrafts that have been in storage, warning the possibility of air check valves erosion that may result in dual-engine failure. Boeing's stored 737 NG and Classic aircrafts which haven't been used for seven consecutive days or longer come under the directive. FAA said inspectors found compromised air check valves when bringing aircraft out of storage and ordered all corroded valves must be replaced before resuming operation. Boeing has responded the same day, explaining that "with airplanes being stored or used infrequently due to lower demand during the COVID-19 pandemic, the valve can be more susceptible to corrosion."

You are a part and puzzle of someone’s life. You may never know where you fit, but always remember that someone’s life may not be complete without you。 你是某个人生命拼图中的一小块，也许你永远都不知道自己的位置在哪儿，但请记住: 没有你，他们的生命是不完整的。#教育学考研# https://t.cn/EG7iYpT