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NTSB says FedEx plane with a disabled landing gear had suffered a leak of hydraulic fluid_我的网站
一 | Investigators said Friday they found hydraulic fluid leaking from a hose in the landing gear system of a FedEx plane that was forced to make an emergency landing this month in Chattanooga, Tennessee.The National Transportation Safety Board said that investigators also found a “discontinuity” in the wiring of an alternate system for lowering the landing gear.Video captured by emergency responders showed sparks flying after the Boeing 757 touched down on Oct. 4 with the left landing gear not fully extended. The plane ran off the end of the runway, but none of the three crew members were injured.The pilots reported that after taking off from Chattanooga, they got a warning about low fluid level and a lack of pressure in one of the hydraulic systems, and they decided to return to the airport. After getting an alert about the landing gear, the pilots declared an emergency. They did a low fly-by that allowed people in the airport tower to confirm that the left landing gear was not extended. The pilots circled and landed with the crippled gear. They were able to keep the plane going straight but couldn't stop until 830 feet beyond the end of the runway, the NTSB said in a preliminary report. Pilots used a slide to get out of the plane.The NTSB said an examination showed that a hose tied to a component used to activate the landing gear was leaking hydraulic fluid.The NTSB said it is continuing to investigate the incident.。 四季度是定全年、保全局的收官季，也是决战决胜的冲刺阶段。进入10月份以来，国网新源辽宁清原抽水蓄能电站全体参建人员铆足干劲抢工期，分秒必争抓进度，奋力冲刺四季度，全力以赴拉满电站建设“进度条”。
二 | 10月22日，记者走进国网新源辽宁清原抽水蓄能电站，在被喻为电站“心脏”的地下厂房，6台发电机组依次排列，5号机组旁技术人员正紧盯电脑和盘柜显示屏对运行参数进行调试；6号机组旁，安装工人正在进行盘柜配线、机组内上导瓦回装。“5号机组于9月28号开始整组启动，正在进行抽水方向热稳定实验，该项实验也是机组投产发电前非常重要的一个自检环节，确保机组投产发电后在各种工况下稳定运行。”国网新源辽宁清原抽水蓄能电站运行部副主任孙源说。 据了解，10月16日至18日，国网新源辽宁清原抽水蓄能有限公司邀请可再生能源发电工程质量监督站专家组，对电站5号、6号机组进行了机组启动阶段质量监督检查。检查期间，专家组一行听取了建设单位关于工程建设情况和5号、6号机组启动准备工作的汇报，检查了上水库、下水库、输水发电系统及开关站等施工安装现场，并与各参建单位进行了座谈和交流，提出了专业性指导与建议。针对专家组在检查中发现的问题，国网新源辽宁清原抽水蓄能有限公司会同工程监理部、EPC总承包部进一步建立健全质量管理体系，闭环管理，为最后两台机组启动运行奠定坚实基础。
三 | 国网新源辽宁清原抽水蓄能电站首台机组于2023年12月15日投产发电，第2台、3台、4台机组分别于2024年3月28日、6月29日、8月28日投产发电。目前，电站以试运行指挥部为中心，下设启动调试组、验收检查组、生产维护组和综合组，不分昼夜地加快机组安装、调试步伐，按照公司既定目标全力推动机组投产发电。
四 | 国网新源辽宁清原抽水蓄能电站是振兴东北重点工程、东北地区规模最大的抽水蓄能电站。项目总投资109亿元，总装机容量180万千瓦，安装6台单机容量30万千瓦的水泵水轮机发电电动机组，设计年抽水电量40亿千瓦时、发电电量30亿千瓦时。6台机组全部投产发电后，将在辽宁电网中承担调峰、调频、调相、储能、系统备用等职责，是辽宁电网大型的“调压器”“稳压器”和“电力粮仓”，它将大量吸纳风电、核电、光伏发电等，源源不断输送清洁能源，有效支撑辽宁电网安全稳定运行，为实现“碳达峰”“碳中和”目标发挥重要支点作用。 责任编辑：李丹。
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