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2013年5月9日,北京时间5月10日00时30分,国际空间站第35长期考察团报告,有微小白色片状物从国际空间站P6桁架溢出。航天员使用手持相机,地面任务中心利用外部摄像机试图查看泄露位置。航天员的报告和休斯顿任务控制中心证实,泄漏发生在P6桁架一端的供电系统冷却装置,并且冷却装置的氨气泄露率逐步增加。经过一天的紧急评估,美国东部时间11日上午,国际空间站两名航天员托马斯·马什伯恩和克里斯·卡西迪实施了一次5h30min的计划外出舱活动,以便查明空间站电力系统的液氨冷却泄漏原因并修补漏洞。
May 9, 2013, Beijing Time At 00:30 on May 10, the 35th long-term delegation to the ISS reported that tiny white flakes spilled from the P6 truss of the International Space Station. The astronauts use a hand-held camera and the ground mission center uses an external video camera to try to see the location of the leak. The astronaut’s report and the Houston Mission Control Center confirmed that leaks occurred in the power supply system cooling at one end of the P6 truss and that the ammonia leak rate of the cooling unit increased gradually. After a one-day emergency assessment, on the morning of the 11th US Eastern Time, two astronauts, Thomas Marshborn and Chris Cassidy, of the ISS implemented a planned 5h30min planned outbound activity to ascertain the fluid in the power station’s power system Ammonia cools leaks and repairs leaks.