NASA thought it fixed the problem by tightening a loose bolt, but testing Monday night confirmed air was still escaping from the crew cabin, said NASA spokeswoman Tracy Young.

• 美国宇航局认为,固定的问题,紧缩的一个螺栓松动,但测试周一晚证实,空气中依然逃离乘员舱时说,美国航天局女发言人特雷西年轻。