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The crew installed a series of electrical jumper cables to bypass what’s believed to be a failed part. Once that was completed, the cosmonauts performed a test, and the hooks and latches opened properly, NASA said.

Minor, but recurring, glitches with the Soyuz will create unease as reliance on the Russian craft increases over the next few years with one two launches left for U.S. space shuttles before the fleet is retired.

Space shuttle Discovery is set to lift off Nov. 1 for the International Space Station. Endeavour will follow in February to wrap up 30 years of shuttle flight.

That will leave NASA without its own means to send astronauts into space for the first time in half a century.