Combustion Integration Rack (CIR) / FLame Extinguishment Experiment (FLEX)-2J Fiber Arm Replacement: Kelly replaced the FLEX-2J Fiber Arm today as part of routine maintenance operations for the CIR. He removed the Multi-user Droplet Combustion Apparatus (MDCA) Chamber Insert Assembly (CIA) from the CIR Combustion Chamber, and restrained it on the Maintenance Work Area (MWA) work …