Extravehicular Mobility Unit (EMU) Troubleshooting: On Saturday, Flight Engineer (FE)-3 Cassidy and FE-6 Nyberg performed a removal and replacement (R&R) of EMU 3011 condensate water relief valve (item 134) and associated filter. Crew then performed an EMU screening test and discovered that the water crossover anomaly was still present. They then proceeded with the gas …