On Day 7 of Challenger's (STS-41-G) historic flight, the crew wok up to Take Me Home, Country Roads by John Denver. David Leestma and Kathryn Sullivan donned their space suits, with help from Jon McBride, to conduct an EVA. They maneuvered to the ORS, situated at the rear of the cargo bay. Leestma installed a valve assembly into the simulated Landsat propulsion plumbing.
Sullivan secured the Ku antenna as they headed back to the air lock. One of the two motors that steered the Ku antenna failed on the first day, but Mission Control managed to devise a workaround for it so it would point at the TDRS satellite and send the stored data to NASA. The EVA lasted 3 hours and 29 minutes and Sullivan became the first American woman to conduct a spacewalk.
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